Distal end of radial spines with lateral branches.
Step 60
Distal end of radial spines smooth or spiny, no lateral branches.
Genus Aulacantha
6 possible taxa remaining show scientific names show common names
1376 taxa excluded
show scientific names
show common names
- Abylidae
- Acanthochiasma fusiforme
- Acanthochiasma hertwigi
- Acanthochiasma planum
- Acanthochiasma quadrangulum
- Acanthochiasma rubescens
- Acanthochiasma serrulatum
- Acanthocolla
- Acanthocyrtha
- Acantholithium
- Acanthometra bulbosa
- Acanthometra cylindrica
- Acanthometra dolichoscia
- Acanthometra fusca
- Acanthometra pellucida
- Acanthometra prismatica
- Acanthometra tetracopa
- Acanthoplegmidae
- Acanthoscina acanthodes
- Acanthospira
- Acanthostaurus
- Acanthostomella
- Acartia bifilosa
- Acartia centrura
- Acartia danae
- Acartia lilljeborgii
- Acartia negligens
- Acartia plumosa
- Acartia tonsa
- Aconthaspis
- Acrocalanus andersoni
- Acrocalanus gibber
- Acrocalanus gracilis
- Acrocalanus longicornis
- Acrocalanus monachus
- Aegina citrea
- Aeginura grimaldii
- Aegisthus aculeatus
- Aegisthus mucronatus
- Aequorea coerulescens
- Aequorea conica
- Aequorea forskalea
- Aequorea macrodactyla
- Aequorea pensilis
- Aetideopsis carinata
- Aetideopsis minor
- Aetideopsis rostrata
- Aetideus acutus
- Aetideus armatus
- Aetideus australis
- Aetideus giesbrechti
- Aetideus pseudarmatus
- Afromysis hansoni
- Agalmatidae
- Aglantha digitale
- Aglantha elata
- Aglaura hemistoma
- Aglauropsis conanti
- Aglauropsis edwarsii
- Aglauropsis kawari
- Albatrossiella
- Alciopa reynaudi
- Alciopina parasitica
- Alloposus mollis
- Amallothrix dentipes
- Amallothrix emarginata
- Amallothrix hadrosoma
- Amallothrix obtusifrons
- Amallothrix valida
- Amblyopsoides obtusa
- Amphiacon denticulatus
- Amphibelone
- Amphicaryoninae
- Amphilithium
- Amphilonche
- Amphinema australis
- Amphinema dinema
- Amphinema rubra
- Amphistaurus
- Amphithyrus bispinosus
- Amphithyrus muratus
- Amphithyrus sculpturatus
- Amphithyrus similis
- Amphitretus pelagicus
- Amphogona apicata
- Amphogona apsteini
- Amphorellopsis
- Amphorides
- Amplectella
- Anapronoe reinhardti
- Anchialina
- Anchylomera blossevillei
- Ancistrocheirus lesueurii
- Andaniexis abyssi
- Andaniexis australis
- Annatiara affinis
- Apolemiidae
- Arachnomysis
- Archaeoscina steenstrupi
- Archeterokrohnia
- Architeuthis dux
- Arctapodema ampla
- Arctapodema antarctica
- Argonauta argo
- Arietellus aculeatus
- Arietellus giesbrechti
- Arietellus minor
- Arietellus pavoninus
- Arietellus plumifer
- Arietellus setosus
- Arietellus simplex
- Arthromysis magellanica
- Ascampbelliella
- Astrolithium
- Astrolonche
- Atelecyclidae
- Athorybiidae
- Atlanticella
- Atolla chuni
- Atolla parva
- Atolla vanhoeffeni
- Atolla wyvillei
- Atrophia
- Augaptilus anceps
- Augaptilus glacialis
- Augaptilus longicaudatus
- Augaptilus megalurus
- Augaptilus spinifrons
- Aulastrum
- Aulatractus
- Auloscena
- Aulosphaera
- Aurelia aurita
- Bathycalanus eltaninae
- Bathycalanus inflatus
- Bathycalanus princeps
- Bathycalanus richardi
- Bathypontia elongata
- Bathypontia sp.
- Bathystegocephalus globosus
- Bathyteuthis abyssicola
- Batoteuthis skolops
- Belliidae
- Benthuephausia ambylops
- Blackfordia virginica
- Bolitaenidae
- Boreomysis
- Borgertella
- Botrynema brucei
- Bougainvillia carolinensis
- Bougainvillia frondosa
- Bougainvillia macloviana
- Bougainvillia muscus
- Bougainvillia niobe
- Bougainvillia platygaster
- Bowmaniella
- Brachioteuthis riisei
- Brachycalanus bjornbergae
- Brachyscelus crusculum
- Brachyscelus globiceps
- Brachyscelus macrocephalus
- Brachyscelus rapax
- Bradycalanus
- Bradycalanus gigas
- Bradycalanus pseudotypicus
- Bradycalanus typicus
- Bradyidius
- Bradyidius plinoi
- Brandtiella
- Brasilomysis castroi
- Bythotiara capensis
- Bythotiara murrayi
- Caesaromysis hispida
- Calamorhynchus pellucidus
- Calanoides acutus
- Calanoides carinatus
- Calanoides macrocarinatus
- Calanopia americana
- Calanopia elliptica
- Calanopia minor
- Calanus agulhensis
- Calanus australis
- Calanus propinquus
- Calanus simillimus
- Calappidae
- Calocalanus atlanticus
- Calocalanus contractus
- Calocalanus equalicauda
- Calocalanus lomonosovi
- Calocalanus minor
- Calocalanus minutus
- Calocalanus namibiensis
- Calocalanus pavo
- Calocalanus pavonius
- Calocalanus plumulosus
- Calocalanus styliremis
- Calocalanus tenuiculus
- Calocalanus tenuis
- Calonemertes hardyi
- Calycopsis bigelowi
- Calycopsis borchgrevinki
- Calycopsis chuni
- Calycopsis papillata
- Calycopsis typa
- Candacia armata
- Candacia bipinnata
- Candacia catula
- Candacia cheirura
- Candacia curta
- Candacia elongata
- Candacia ethiopica
- Candacia longimana
- Candacia magna
- Candacia norvegica
- Candacia pachydactyla
- Candacia paenelongimana
- Candacia tenuimana
- Candacia varicans
- Canthocalanus pauper
- Castanarium
- Castanea
- Castanella
- Castanidium
- Castanissa
- Castanopsis
- Catostylus tagi
- Centraugaptilus cucullatus
- Centraugaptilus horridus
- Centraugaptilus rattrayi
- Centropages brachiatus
- Centropages bradyi
- Centropages calaninus
- Centropages chierchiae
- Centropages elongatus
- Centropages gracilis
- Centropages kroyeri
- Centropages longicornis
- Centropages orsinii
- Centropages typicus
- Centropages velificatus
- Centropages violaceus
- Cephea cephea
- Chalaraspidum alatum
- Chiridiella
- Chiridiella atlantica
- Chiridius gracilis
- Chiridius polaris
- Chiridius poppei
- Chiroteuthidae
- Chirundina streetsii
- Chirundinella magna
- Chromatonema rubra
- Chrysaora hysoscella
- Chrysaora lactea
- Chrysaora plocamia
- Chrysaora quinquecirrha
- Chtenopteryx sicula
- Circoporus
- Circospathis
- Cirrata
- Cirrhitiara superba
- Cirrholovenia tetranema
- Clausidiidae
- Clausocalanidae
- Clausocalanus arcuicornis
- Clausocalanus brevipes
- Clausocalanus furcatus
- Clausocalanus ingens
- Clausocalanus jobei
- Clausocalanus laticeps
- Clausocalanus lividus
- Clausocalanus mastigophorus
- Clausocalanus minor
- Clausocalanus parapergens
- Clausocalanus paululus
- Clausocalanus pergens
- Clausophyidae
- Cleonardo longipes
- Clevea
- Climacocylis
- Clytemnestra rostrata
- Clytemnestra scutellata
- Clytia brunescens
- Clytia discoida
- Clytia hemisphaerica
- Clytia lomae
- Clytia noliforme
- Clytia simplex
- Codonaria
- Codonella
- Codonellopsis
- Coelechinus
- Coelodecas
- Coelodendrum
- Coelodiceras
- Coelographis
- Coleaspis
- Colobonema sericeum
- Comantenna
- Comantenna curtisetosa
- Conaconidae
- Conaea expressa
- Conaea rapax
- Conchellium
- Conchidium
- Conchophacus
- Conchopsis
- Copilia hendorffi
- Copilia lata
- Copilia mediterranea
- Copilia mirabilis
- Copilia quadrata
- Copilia vitrea
- Cornucalanus chelifer
- Cornucalanus robustus
- Cornucella
- Corycaeus affinis
- Corycaeus agilis
- Corycaeus amazonicus
- Corycaeus clausi
- Corycaeus crassiusculus
- Corycaeus flaccus
- Corycaeus furcifer
- Corycaeus giesbrechti
- Corycaeus latus
- Corycaeus lautus
- Corycaeus limbatus
- Corycaeus longistylis
- Corycaeus ovalis
- Corycaeus pacificus
- Corycaeus robustus
- Corycaeus speciosus
- Corycaeus typicus
- Coscinaspis
- Cosmetirella davisi
- Cosmocalanus darwinii
- Cranchiinae
- Craniaspis parmipora
- Cranocephalus scleroticus
- Crossota alba
- Crossota brunnea
- Cryptochiridae
- Ctenocalanus citer
- Ctenocalanus heronae
- Ctenocalanus vanus
- Ctenoscina brevicaudata
- Cubaia aphrodite
- Cunina duplicata
- Cunina frugifera
- Cunina globosa
- Cunina octonaria
- Cunina peregrina
- Cycloteuthidae
- Cyllopus
- Cymatocylis
- Cyphocaris anonyx
- Cyphocaris bouvieri
- Cyphocaris challengeri
- Cyphocaris faurei
- Cyphocaris richardi
- Cystisoma fabricii
- Cystisoma latipes
- Cystisoma longipes
- Cystisoma magna
- Cystisoma pellucida
- Cytaeis sp.
- Cyttarocylis
- Dadayiella
- Dairella latissima
- Danaella mimonectes
- Daturella
- Deepstaria enigmatica
- Delius nudus
- Delius sewelli
- Desmonema chierchianum
- Desmonema gaudichaudi
- Diaixis helenae
- Diaixis hibernica tropica
- Diaixis trunovi
- Dicranophora buetschli
- Dictyacanthidae
- Dictyaspis
- Dictyocysta
- Diphyidae
- Diploconidae
- Diplulmaris antarctica
- Dipurena baukalion
- Dipurena halterata
- Dipurena reesi
- Discomedusa lobata
- Disseta palumbii
- Dorataspis
- Dorippidae
- Drepanopus forcipatus
- Dromiidae
- Drymonema dalmatinum
- Echinomysis chuni
- Ectopleura dumortieri
- Eirene viridula
- Eledone nigra
- Enoploteuthidae
- Epicalymma exigua
- Epicancella
- Epiplocylis
- Epiplocyloides
- Erythrops
- Euandania gigantea
- Euaugaptilus affinis
- Euaugaptilus aliquantus
- Euaugaptilus angustus
- Euaugaptilus antarcticus
- Euaugaptilus austrinus
- Euaugaptilus bullifer
- Euaugaptilus clavatus
- Euaugaptilus elongatus
- Euaugaptilus facilis
- Euaugaptilus filigerus
- Euaugaptilus gibbus
- Euaugaptilus hecticus
- Euaugaptilus laticeps
- Euaugaptilus latifrons
- Euaugaptilus longimanus
- Euaugaptilus magnus
- Euaugaptilus maxillaris
- Euaugaptilus nodifrons
- Euaugaptilus oblongus
- Euaugaptilus pachychaeta
- Euaugaptilus palumbii
- Euaugaptilus perasetosus
- Euaugaptilus rigidus
- Euaugaptilus squamatus
- Euaugaptilus tenuispinus
- Eucalanus hyalinus
- Euchaeta acuta
- Euchaeta concinna
- Euchaeta marina
- Euchaeta media
- Euchaeta paraconcinna
- Euchaeta pubera
- Euchaeta spinosa
- Euchaetomera
- Euchaetomeropsis merolepis
- Eucheilota duodecimalis
- Eucheilota foresti
- Eucheilota maculata
- Eucheilota paradoxica
- Eucheilota ventricularis
- Euchirella amoena
- Euchirella bitumida
- Euchirella curticauda
- Euchirella formosa
- Euchirella maxima
- Euchirella messinensis messinensis
- Euchirella pulchra
- Euchirella rostrata
- Euchirella similis
- Euchirella splendens
- Euchirella truncata
- Eucodonium brownei
- Eucopia
- Eukrohnia bathyantarctica
- Eukrohnia bathypelagica
- Eukrohnia flaccicoeca
- Eukrohnia fowleri
- Eukrohnia hamata
- Eukrohnia macroneura
- Eukrohnia proboscidea
- Euphausia americana
- Euphausia brevis
- Euphausia crystallorophias
- Euphausia diomedeae
- Euphausia eximia
- Euphausia frigida
- Euphausia gibba
- Euphausia gibboides
- Euphausia hanseni
- Euphausia krohni
- Euphausia longirostris
- Euphausia lucens
- Euphausia mutica
- Euphausia recurva
- Euphausia sibogae
- Euphausia similis
- Euphausia spinifera
- Euphausia superba
- Euphausia tenera
- Euphausia triacantha
- Euphausia vallentini
- Euphysa aurata
- Euphysetta
- Euphysora furcata
- Euphysora gigantea
- Euphysora gracilis
- Eupilema inexpectata
- Eupronoe armata
- Eupronoe maculata
- Eupronoe minuta
- Eurythenes gryllus
- Eurythenes obesus
- Euscelus
- Eusirella elegans
- Eusirella flagella
- Eusirella multicalceola
- Eusiroides stenopleura
- Eusiropsis riisei
- Eusirus antarcticus
- Eusirus microps
- Eusirus perdentatus
- Eusirus properdentatus
- Euterpina acutifrons
- Euthamneus rostratus
- Eutima coerulea
- Eutima gracilis
- Eutima mira
- Eutintinnus
- Eutonina scintillans
- Evadne nordmanni
- Evadne spinifera
- Farrania frigida
- Farranula concinna
- Farranula curta
- Farranula gracilis
- Farranula rostrata
- Favella
- Flotidae
- Forskaliidae
- Gaetanus antarcticus
- Gaetanus brevicornis
- Gaetanus brevispinus
- Gaetanus kruppii
- Gaetanus miles
- Gaetanus minor
- Gaetanus pileatus
- Gaetanus robustus
- Gaetanus tenuispinus
- Gastrosaccus
- Gaussia asymmetrica
- Gaussia princeps
- Gecarcinidae
- Geryonia proboscidalis
- Gigartaconidae
- Glossocephalus milneedwardsi
- Gnathophausia
- Gonatus antarcticus
- Gossea brachymera
- Gotoea similis
- Grapsidae
- Grimalditeuthis bonplandi
- Haeckeliana
- Halice macronyx
- Halice secunda
- Halicreas minimum
- Haliommatidium
- Haliscera bigelowi
- Haliscera conica
- Haliscera racovitzae
- Halitholus intermedius
- Halitiara formosa
- Halitrephes maasi
- Halocella
- Halopsis ocellata
- Haloptilus acutifrons
- Haloptilus angusticeps
- Haloptilus austini
- Haloptilus chierchiae
- Haloptilus fertilis
- Haloptilus fons
- Haloptilus longicirrus
- Haloptilus longicornis
- Haloptilus major
- Haloptilus mucronatus
- Haloptilus ocellatus
- Haloptilus ornatus
- Haloptilus oxycephalus
- Haloptilus plumosus
- Haloptilus spiniceps
- Hansenomysis falklandica
- Haplopodia
- Harcledo curvidactyla
- Helgicirrha schulzei
- Helicostomella
- Heliolithium aureum
- Hemiscelus diplochelatus
- Hemityphis tenuimanus
- Heteracon biformis
- Heteroerythrops purpura
- Heterokrohnia
- Heteromysis mureseanui
- Heterorhabdus abyssalis
- Heterorhabdus austrinus
- Heterorhabdus clausii
- Heterorhabdus compactus
- Heterorhabdus lobatus
- Heterorhabdus norvegicus
- Heterorhabdus papilliger
- Heterorhabdus robustus
- Heterorhabdus spinifrons
- Heterorhabdus tanneri
- Heterorhabdus vipera
- Heterostylites longicornis
- Heterostylites major
- Heterotiara anonyma
- Heterotiara minor
- Hexaconus
- Hexalaspis
- Hippopodiidae
- Hirondellea brevicaudata
- Histioteuthidae
- Homeognathia
- Homoeonema platygonon
- Homolidae
- Hybocodon prolifer
- Hybocodon unicus
- Hydractinia minima
- Hydractinia minuta
- Hydractinia tenuis
- Hydractinia tournieri
- Hymenosomatidae
- Hyperamblyops megalops
- Hyperia crassa
- Hyperia curticephala
- Hyperia macrocephala
- Hyperia medusarum
- Hyperia spinigera
- Hyperiella antarctica
- Hyperiella dilatata
- Hyperiella macronyx
- Hyperietta stebbingi
- Hyperietta stephenseni
- Hyperietta vosseleri
- Hyperioides longipes
- Hyperionyx macrodactylus
- Hyperiopsidae
- Hyperoche cryptodactylus
- Hyperoche luetkenides
- Hyperoche martinezi
- Hyperoche mediterranea
- Hyperoche medusarum
- Hystrichaspis
- Icosaspis
- Idiosepiidae
- Iospilus affinis
- Iospilus phalacroides
- Irenium teuscheri
- Iulopis loveni
- Joubiniteuthis portieri
- Kantiella enigmatica
- Katerythrops
- Koellikerina fasciculata
- Krohnia lepidota
- Krohnitta pacifica
- Krohnitta subtilis
- Laackmanniella
- Labidocera acuta
- Labidocera acutifrons
- Labidocera darwinii
- Labidocera fluviatilis
- Labidocera minuta
- Labidocera nerii
- Labidocera scotti
- Labidocera wollastoni
- Laitmatobius
- Lanceola clausi
- Lanceola felina
- Lanceola loveni
- Lanceola pacifica
- Lanceola sayana
- Lanceola serrata
- Landrumius gigas
- Laodicea indica
- Laodicea minuscula
- Laodicea pulchra
- Laodicea undulata
- Latreilliidae
- Laxohyperia vespuliformis
- Leptocotis tenuirostris
- Leptomysis
- Lestrigonus bengalensis
- Lestrigonus crucipes
- Lestrigonus latissimus
- Lestrigonus macrophthalmus
- Lestrigonus schizogeneios
- Leuckartiara adnata
- Leuckartiara octona
- Leucosiidae
- Linuche unguiculata
- Lirella
- Liriope tetraphylla
- Lithopteridae
- Lobocella
- Loliginidae
- Lonchostaurus
- Longithorax capensis
- Lopadorhynchus appendiculatus
- Lopadorhynchus brevis
- Lopadorhynchus henseni
- Lopadorhynchus krohni
- Lopadorhynchus nationalis
- Lopadorhynchus uncinatus
- Lophogaster
- Lophothrix frontalis
- Lophothrix humilifrons
- Lophothrix latipes
- Lophothrix quadrispinosa
- Lophothrix similis
- Lovenella cirrata
- Lubbockia aculeata
- Lubbockia squillimana
- Lucicutia aurita
- Lucicutia bicornuta
- Lucicutia clausii
- Lucicutia curta
- Lucicutia flavicornis
- Lucicutia gaussae
- Lucicutia gemina
- Lucicutia grandis
- Lucicutia longicornis
- Lucicutia lucida
- Lucicutia macrocera
- Lucicutia magna
- Lucicutia major
- Lucicutia maxima
- Lucicutia ovalis
- Lucicutia wolfendeni
- Lutamator elegans
- Lycaea nasuta
- Lycaea pachypoda
- Lycaea pulex-complex
- Lycaea serrata
- Lycaeopsis themistoides
- Lychnaspis
- Lychnorhiza lucerna
- Lycoteuthiade
- Macrosetella gracilis
- Majidae
- Malagazzia carolinae
- Margalefia intermedia
- Margelopsis australis
- Mastigoteuthis spp.
- Maupasia coeca
- Maupasia gracilis
- Maupasia isochaeta
- Mecynocera clausi
- Medusetta
- Megacalanus princeps
- Megalanceola remipes
- Merga tergestina
- Merga violacea
- Mesaiokeras mikhailini
- Mesaiokeras semiplenus
- Mesaiokeras tantillus
- Mesocalanus tenuicornis
- Mesocomantenna spinosa
- Mesopodopsis wooldridgei
- Mesorhabdus angustus
- Metacylis
- Metacyphocaris helgae
- Metamysidopsis
- Meterythrops picta
- Metridia brevicauda
- Metridia calypsoi
- Metridia curticauda
- Metridia discreta
- Metridia gerlachei
- Metridia longa
- Metridia lucens
- Metridia princeps
- Metridia venusta
- Microsetella norvegica
- Microsetella rosea
- Mimocalanus cultrifer
- Mimonectes gaussi
- Mimonectes loveni
- Mimonectes sphaericus
- Miracia efferata
- Miracia minor
- Mitrocoma minervae
- Mitrocomella brownei
- Mitrocomella frigida
- Mitrocomella grandis
- Mitrocomella millardae
- Modeeria rotunda
- Moerisia inkermanica
- Monacilla gracilis
- Monacilla typica
- Mysidetes
- Mysidium gracile
- Mysidopsis
- Naiades cantraini
- Nannocalanus minor
- Nationaletta
- Nausithoe aurea
- Nausithoe punctata
- Nausithoe rubra
- Nectonemertes minima
- Nectonemertes mirabilis
- Nectonemertes primitiva
- Nectopyramidinae
- Nematobrachion boopis
- Nematobrachion flexipes
- Nematobrachion sexspinosum
- Nematoscelis atlantica
- Nematoscelis gracilis
- Nematoscelis megalops
- Nematoscelis microps
- Nematoscelis tenella
- Neocalanus gracilis
- Neocalanus robustior
- Neocalanus tonsus
- Neognathophausia
- Neomysis
- Neorhabdus falciformis
- Neoscolecithrix caetanovi
- Neoteuthidae
- Neoturris pileata
- Niobia dendrotentaculata
- Nouvelia valdiviae
- Nyctiphanes capensis
- Obelia sp.
- Oceania armata
- Octobulbacea montehermosensis
- Octocanna haeckeli
- Octophialucium bigelowi
- Octopodinae
- Octopoteuthidae
- Oculosetella gracilis
- Ocypodidae
- Ocythoe tuberculata
- Oithona atlantica
- Oithona attenuata
- Oithona bjornbergae
- Oithona brevicornis
- Oithona fallax
- Oithona frigida
- Oithona hamata
- Oithona hebes
- Oithona minuta
- Oithona nana
- Oithona oculata
- Oithona oswaldocruzi
- Oithona plumifera
- Oithona pseudofrigida
- Oithona rigida
- Oithona robusta
- Oithona setigera
- Oithona similis
- Oithona simplex
- Oithona tenuis
- Oithona vivida
- Olindias phosphorica
- Olindias sambaquiensis
- Ommastrephidae
- Oncaea antarctica
- Oncaea atlantica
- Oncaea clevei
- Oncaea curta
- Oncaea curvata
- Oncaea englishi
- Oncaea lacinia
- Oncaea latimana
- Oncaea media
- Oncaea mediterranea
- Oncaea parila
- Oncaea prolata
- Oncaea scottodicarloi
- Oncaea venusta
- Oncaea waldemari
- Onchocalanus magnus
- Onchocalanus subcristatus
- Onchocalanus trigoniceps
- Onchocalanus wolfendeni
- Onychoteuthidae
- Orchistoma collapsa
- Orchistoma pileus
- Orchomenella abyssorum
- Orchomenella distinctus
- Orchomenella gerulicorbis
- Ormosella
- Oxycephalus clausi
- Oxycephalus latirostris
- Oxycephalus longipes
- Oxycephalus piscator
- Pachos tuberosum
- Pachyptilus abbreviatus
- Pachyptilus longimanus
- Paivella inaciae
- Paivella naporai
- Pandea conica
- Pandea rubra
- Pantachogon haeckeli
- Pantachogon militare
- Pantachogon scotti
- Paracalanus aculeatus
- Paracalanus campaneri
- Paracalanus denudatus
- Paracalanus indicus
- Paracalanus nanus
- Paracalanus parvus
- Paracalanus quasimodo
- Paracalanus tropicus
- Paracallisoma alberti
- Paracandacia bispinosa
- Paracandacia simplex
- Paracandacia truncata
- Paracartia africana
- Paracomantenna gracilis
- Paracomantenna magalyae
- Paracyphocaris praedator
- Paraeuchaeta aequatorialis
- Paraeuchaeta antarctica
- Paraeuchaeta barbata
- Paraeuchaeta biloba
- Paraeuchaeta bisinuata
- Paraeuchaeta calva
- Paraeuchaeta comosa
- Paraeuchaeta dactylifera
- Paraeuchaeta exigua
- Paraeuchaeta gracilis
- Paraeuchaeta hansenii
- Paraeuchaeta kurilensis
- Paraeuchaeta parvula
- Paraeuchaeta pseudotonsa
- Paraeuchaeta rasa
- Paraeuchaeta regalis
- Paraeuchaeta sarsi
- Paraeuchaeta scotti
- Paraeuchaeta sesquipedalis
- Paraeuchaeta vervoorti
- Paragotoea bathybia
- Paraleptomysis dimorpha
- Paralubbockiidae
- Paralycaea gracilis
- Paramisophria
- Paramisophria giselae
- Parandania boecki
- Paraphronima
- Paraphyllina ransoni
- Parapronoe campbelli
- Parapronoe crustulum
- Parapronoe parva
- Parascelus edwardsi
- Parascelus typhoides
- Paratyphis maculatus
- Paratyphis parvus
- Paratyphis promontori
- Paraugaptilus buchani
- Pareucalanus langae
- Pareucalanus sewelli
- Paroithona flemingeri
- Parthenopidae
- Parundella
- Parvocalanus crassirostris
- Parvocalanus scotti
- Pedinosoma curtum
- Pegantha clara
- Pegantha laevis
- Pegantha martagon
- Pegantha rubiginosa
- Pegantha triloba
- Pegohyperia princeps
- Pelagia noctiluca
- Pelagobia longicirrata
- Pelagonemertes joubini
- Pelagonemertes korotkevitschae
- Pelagonemertes moseleyi
- Pelagonemertes rollestoni
- Penilia avirostris
- Periphylla periphylla
- Persa incolorata
- Petalotricha
- Phacellophora camtschatica
- Phaenna spinifera
- Phalacrophorus pictus
- Phalacrophorus uniformis
- Phatnacantha icosaspis
- Phialella falklandica
- Phialopsis diegensis
- Phippsiella nipoma
- Pholidoteuthidae
- Phractopeltidae
- Phronimopsis spinifera
- Phrosina semilunata
- Phtisica marina
- Phyllopus aequalis
- Phyllopus bidentatus
- Phyllopus helgae
- Phyllopus impar
- Phyllorhiza punctata
- Phyllostaurus
- Physalia physalis
- Physophoridae
- Pilarella longicornis
- Pinnotheridae
- Planktonemertes vanhoeffeni
- Planktonetta
- Platyscelus armatus
- Platyscelus crustulatus
- Platyscelus ovoides
- Platyscelus serratulus
- Pleopis polyphemoides
- Pleopis schmackeri
- Pleuraspis
- Pleuromamma abdominalis
- Pleuromamma borealis
- Pleuromamma gracilis
- Pleuromamma piseki
- Pleuromamma quadrungulata
- Pleuromamma robusta
- Pleuromamma xiphias
- Plotohelmis alata
- Plotohelmis capitata
- Plotohelmis tenuis
- Podon intermedius
- Podon leuckarti
- Pontella atlantica
- Pontella diagonalis
- Pontella fera
- Pontella gaboonensis
- Pontella lobiancoi
- Pontella marplatensis
- Pontella securifer
- Pontella spinipes
- Pontellina platychela
- Pontellina plumata
- Pontellopsis brevis
- Pontellopsis perspicax
- Pontellopsis regalis
- Pontellopsis villosa
- Pontodoridae
- Pontoptilus ovalis
- Poralia rufescens
- Poroecus
- Porpita porpita
- Portunidae
- Prayinae
- Primno brevidens
- Primno latreillei
- Primno macropa
- Pristacantha
- Probalaenanemertes irenae
- Proboscidactyla menoni
- Proboscidactyla mutabilis
- Proboscidactyla ornata
- Proboscidactyla stellata
- Prolanceola
- Promachoteuthis sp.
- Promysis atlantica
- Pronoe capito
- Protopelagonemertes hubrechti
- Protorhabdonella
- Pseudeuphausia latifrons
- Pseudevadne tergestina
- Pseudochirella batillipa
- Pseudochirella dubia
- Pseudochirella hirsuta
- Pseudochirella mawsoni
- Pseudochirella obtusa
- Pseudochirella pustulifera
- Pseudochirella spectabilis
- Pseudochirella spinosa
- Pseudodiaptomus acutus
- Pseudodiaptomus charteri
- Pseudodiaptomus gracilis
- Pseudodiaptomus hessei
- Pseudodiaptomus marshi
- Pseudodiaptomus nudus
- Pseudodiaptomus richardi
- Pseudodiaptomus serricaudatus
- Pseudodiaptomus trihamatus
- Pseudolithium
- Pseudolubbockia
- Pseudomma
- Pseudotiara tropica
- Psychroteuthidae
- Pterosagitta draco
- Ptychogastria polaris
- Ptychogena antarctica
- Ptychogena hyperborea
- Pyrostephidae
- Ransonia krampi
- Rathkea africana
- Rathkea formosissima
- Rhabdonella
- Rhabdoon singulare
- Rhabdosoma armatum
- Rhabdosoma brevicaudatum
- Rhabdosoma minor
- Rhabdosoma whitei
- Rhachotropis
- Rhacostoma atlantica
- Rhamphochela
- Rhincalanus cornutus
- Rhincalanus gigas
- Rhincalanus nasutus
- Rhizophysa eysenhardti
- Rhizophysa filiformis
- Rhizostoma pulmo
- Rhopalonema velatum
- Rhynchonerella angelini
- Rhynchonerella bongraini
- Rhynchonerella gracilis
- Rhynchonerella moebii
- Rhynchonerella petersi
- Russellia mirabilis
- Sagenoarium
- Sagenoscena
- Sagitella kowalewskii
- Sagitta bedoti
- Sagitta bierii
- Sagitta bipunctata
- Sagitta decipiens
- Sagitta enflata
- Sagitta ferox
- Sagitta friderici
- Sagitta gazellae
- Sagitta helenae
- Sagitta hexaptera
- Sagitta hispida
- Sagitta lyra
- Sagitta macrocephala
- Sagitta marri
- Sagitta maxima
- Sagitta megalophthalma
- Sagitta minima
- Sagitta neglecta
- Sagitta pacifica
- Sagitta planctonis
- Sagitta pulchra
- Sagitta regularis
- Sagitta robusta
- Sagitta serratodentata
- Sagitta setosa
- Sagitta sibogae
- Sagitta tasmanica
- Sagitta tenuis
- Sagitta zetesios
- Sagoscena
- Salpingella
- Sapphirina angusta
- Sapphirina auronitens-sinuicauda
- Sapphirina bicuspidata
- Sapphirina gastrica
- Sapphirina intestinata
- Sapphirina iris
- Sapphirina metallina
- Sapphirina nigromaculata
- Sapphirina opalina-darwini
- Sapphirina ovatolanceolata-gemma
- Sapphirina scarlata
- Sapphirina stellata
- Sarsia eximia
- Sarsia gracilis
- Sarsia producta
- Scaphocalanus antarcticus
- Scaphocalanus brevicornis
- Scaphocalanus curtus
- Scaphocalanus echinatus
- Scaphocalanus elongatus
- Scaphocalanus farrani
- Scaphocalanus magnus
- Scaphocalanus parantarcticus
- Schizoscelus ornatus
- Scina borealis
- Scina crassicornis
- Scina curvidactyla
- Scina excisa
- Scina incerta
- Scina langhansi
- Scina latifrons
- Scina lepisma
- Scina marginata
- Scina nana
- Scina oedicarpus
- Scina pubera
- Scina pusilla
- Scina rattrayi
- Scina similis
- Scina spinosa
- Scina stebbingi
- Scina stenopus
- Scina submarginata
- Scina tullbergi
- Scina vosseleri
- Scina wolterecki
- Scolecithricella abyssalis
- Scolecithricella dentata
- Scolecithricella minor
- Scolecithricella ovata
- Scolecithricella profunda
- Scolecithricella pseudoculata
- Scolecithricella tenuiserrata
- Scolecithricella vittata
- Scolecithrix bradyi
- Scolecithrix danae
- Scopelocheiropsis abyssalis
- Scottocalanus securifrons
- Scypholanceola aestiva
- Sepiadariidae
- Sepiidae
- Sepiolidae
- Sibogita geometrica
- Simorhynchotus antennarius
- Siphonaspis cristata
- Siriella
- Sminthea eurygaster
- Solmaris corona
- Solmaris flavescens
- Solmissus atlantica
- Solmissus faberi
- Solmissus marshalli
- Solmundella bitentaculata
- Sphaeronectidae
- Spinocalanus abyssalis
- Spinocalanus brevicaudatus
- Spinocalanus horridus
- Spinocalanus magnus
- Spirula spirula
- Stauracantha
- Stauracon pallidus
- Stauraspis
- Staurocladia capensis
- Staurocladia hodgsoni
- Staurocladia vallentini
- Staurophora mertensii
- Steenstrupiella
- Stelidiella
- Stenopleura atlantica
- Stenosemella
- Stomolophus meleagris
- Streetsia challengeri
- Streetsia mindanaonis
- Streetsia palmaspinosa
- Streetsia porcella
- Streetsia steenstrupi
- Stygiomedusa gigantea
- Stylicauda
- Stylocheiron abbreviatum
- Stylocheiron affine
- Stylocheiron carinatum
- Stylocheiron elongatum
- Stylocheiron longicorne
- Stylocheiron maximum
- Stylocheiron micropthalma
- Stylocheiron robustum
- Stylocheiron suhmii
- Subeucalanus
- Subeucalanus crassus
- Subeucalanus longiceps
- Subeucalanus monachus
- Subeucalanus pileatus
- Subeucalanus subtenuis
- Synopia caraibica
- Synopia gracilis
- Synopia scheelana
- Synopia ultramarina
- Taoniinae
- Temora discaudata
- Temora longicornis
- Temora stylifera
- Temora turbinata
- Temoropia mayumbaensis
- Tetracanna octonema
- Tetralonche
- Tetrathyrus forcipatus
- Tetrorchis erythrogaster
- Thamnostoma tetrella
- Tharybis asymmetrica
- Tharybis megalodactyla
- Themistella fusca
- Themisto gaudichaudi
- Thoriella islandica
- Thyropus sphaeroma
- Thysanoessa gregaria
- Thysanoessa longicaudata
- Thysanoessa macrura
- Thysanoessa parva
- Thysanoessa vicina
- Thysanopoda acutifrons
- Thysanopoda aequalis
- Thysanopoda cornuta
- Thysanopoda cristata
- Thysanopoda egregia
- Thysanopoda micropthalma
- Thysanopoda monacantha
- Thysanopoda obtusifrons
- Thysanopoda orientalis
- Thysanopoda pectinata
- Thysanopoda spinicaudata
- Thysanopoda tricuspidata
- Thysanoteuthis rhombus
- Tiaricodon coeruleus
- Tiaropsidium roseum
- Tintinnidium
- Tintinnopsis
- Tomopteris carpenteri
- Tomopteris duccii
- Tomopteris dunckeri
- Tomopteris elegans
- Tomopteris euchaeta
- Tomopteris helgolandica
- Tomopteris kefersteini
- Tomopteris kempi
- Tomopteris krampi
- Tomopteris ligulata
- Tomopteris nationalis
- Tomopteris nisseni
- Tomopteris planktonis
- Tomopteris rolasi
- Tomopteris septentrionalis
- Torrea candida
- Tortanus gracilis
- Toxorchis polynema
- Travisiopsis coniceps
- Travisiopsis dubia
- Travisiopsis lanceolata
- Travisiopsis levinseni
- Tremoctopodidae
- Tryphana malmi
- Turritopsis nutricula
- Tuscarantha
- Tuscaretta
- Tuscarilla
- Tuscarora
- Typhloscolex mulleri
- Undella
- Undellopsis
- Undeuchaeta incisa
- Undeuchaeta major
- Undeuchaeta plumosa
- Undinula vulgaris
- Valdiviella brevicornis
- Valdiviella insignis
- Valdiviella minor
- Valdiviella oligarthra
- Vallentinia falklandica
- Vallentinia gabriellae
- Vampyroteuthis infernalis
- Vanadis antarctica
- Vanadis crystallina
- Vanadis formosa
- Vanadis longissima
- Vanadis minuta
- Vanadis studeri
- Vanadis tagensis
- Vanadis violacea
- Vannuccia forbesii
- Vellela vellela
- Vibilia antarctica
- Vibilia armata
- Vibilia australis
- Vibilia chuni
- Vibilia cultripes
- Vibilia gibbosa
- Vibilia jeangerardi
- Vibilia propinqua
- Vibilia pyripes
- Vibilia robusta
- Vibilia stebbingi
- Vibilia viatrix
- Vibilioides alberti
- Vitreledonella richardi
- Watelio gravieri
- Xanthidae
- Xanthocalanus agilis
- Xanthocalanus marlyae
- Xanthocalanus soaresmoreirai
- Xenokrohnia
- Xiphacantha
- Xystonella
- Xystonellopsis
- Yndolaciidae
- Zanclea sp.
- Zancleopsis dichotoma
- Zanclonia weldoni
- Zygocanna vagans
- Zygostaurus
Decision path