Morphological characters based on original descriptions (see Table 14) of the megalopa of 21 species of Majidae and Parthenopidae
from the South Atlantic. Setation data refer to numbers of setae per segment, progressing proximally to distally. Abbrevations: Mx2:
maxilla; Mxp2: maxilliped 2; Mxp3: maxilliped 3.
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Family/Species Rostrum orientation Carapace Mx1 Mx2 Mxp1 Mxp3
outgrowths endopod endopod epipod epipod
setation setation setation setation
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MAJIDAE
Acanthonyx scutiformis deflected ventrally smooth 1,1 0 6 3
Anasimus latus ? spines/protuberances 0 1 4 3
Apiomithrax violaceus directed anteriorly spines/protuberances 0,2 0 5 7-8
Epialtus bituberculatus deflected ventrally smooth 0 0 5 6
Epialtus brasiliensis deflected ventrally smooth 0 0 7 10
Eurypodius latreillei deflected ventrally spines 3 2 12 2
Leucippa pentagona absent protuberances 1,2 0 8-9 8-12
Libidoclaea granaria directed anteriorly? protuberances 1 0 14 9
Libinia ferreirae deflected ventrally protuberances 4 2 7 9
Libinia spinosa deflected ventrally spines/protuberances 2 0 4 6
Microphrys bicornutus deflected ventrally protuberances 0 0 5 5
Mithraculus coryphe directed anteriorly protuberances 0 0 6/7 2/8
Mithraculus forceps directed anteriorly protuberances 0 0 5 5
Mithrax caribbaeus deflected ventrally protuberances 0,2 0 6 5
Mithrax hispidus directed anteriorly protuberances 0 2 5 3
Pitho lherminieri deflected ventrally protuberances 0,2 0 5 6
Pyromaia tuberculata directed anteriorly protuberances 0,2 0 7 8
Stenocionops furcatus coelatus
ventrally deflected protuberances 0,2 0 5 7-8
Stenorhynchus seticornis deflected ventrally spines/protuberances 0,4 3 8 5?
Taliepus dentatus directed anteriorly? protuberances 3 2 11 9

PARTHENOPIDAE
Parthenope (Platylambrus) serrata
deflected ventrally posterodorsal spines 7 8 7 10
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