Boas, 1883
Diagnosis
Endopods of 1st and 2nd pereopods modified as gnathopods. No branchiae on pereopods. Marsupium of female usually composed of 2 or 3, sometimes 7, pairs of oostegites. Female pleopods generally rudimentary. Male pleopods usually biramous, often one or more pairs modified into accessory copulatory structures.
Includes 900 species belonging to 4 families, Petalophthalmidae, Mysidae, Lepidomysidae and Stygiomysidae.
Taxa treated:
Family Petalophthalmidae
Family Mysidae
Subfamily Boreomysinae
Subfamily Siriellinae
Tribe Siriellini
Subfamily Gastrosaccinae
Subfamily Mysinae
Tribe Erythropini
Tribe Leptomysini
Tribe Mysini
Tribe Heteromysini