THE AMPHIPODA 241 



Chevreux ; Socarnes, Boeck ; Trischizostoma, Boeck. Family STEGO- 

 CEPHALIDAE. Stegocephcilus, Kroyer. Family AMPELISCIDAE. Ampelisca, 

 Kroyer. Family HAUSTORIIDAE. Haustorius, S. Mliller ; Urothoe, Dana. 

 Family PHOXOCEPHALIDAE. PJwxocephalus, Stebbing. Family AMPHI- 

 LOCHIDAE. Amphilochus, Spence Bate. Family LEUCOTHOIDAE. Leucothoe, 

 Leach. Family ANAMIXIDAE. Anamixis, Stebbing. Family METOPIDAE. 

 Metopa, Boeck. Family CRESSIDAE. Cressa, Boeck. Family STENO- 

 THOIDAE. Stenothoe, Dana. Family PHLIANTIDAE. Phlias, Gue"rin ; 

 Pereionotus, Spence Bate and Westwood. Family COLOMASTIGIDAE. 

 Colomastix, Grube. Family LAFYSTIIDAE. Lafystius, Kroyer. Family 

 LAPHYSTIOPSIDAE. Laphystiopsis, G. 0. Sars. Family ACANTHONOTO- 

 ZOMATIDAE. Accmthonotozoma , Boeck. Family PARDALISCIDAE. Parda- 

 lisca, Kroyer. Family LILLJEBORGIIDAE. Lilljeborgia, Spence Bate. 

 Family OEDICEROTIDAE. Oediceros, Kroyer. Family SYNOPIIDAE. 

 Synopia, Dana. Family TIROXIDAE. Tiron, Lilljeborg. Family 

 CALLIOPIIDAE. Calliopius, Lilljeborg. Family PLEDSTIDAE. Pleustes, 

 Spence Bate. Family PARAUPHITHOIDAE. Paramphithoe, Bruzelius. 

 Family ATYLIDAE. Atylus, Leacli. Family MELPHIDIPPIDAE. Mel- 

 phidippa, Boeck. Family EDSIRIDAE. Eusirus, Kroyer. Family 

 BATEIDAE. Batea, F. Muller. Family PONTOGENEIIDAE. Pontogeneia, 

 Boeck. Family GAMMARIDAE. Gammarus, Fabricius (Fig. 132) ; 

 Nipkargus, Schiodte ; Synurella, Wrzesniowski ; Melita, Leach. Family 

 DEXAMINIDAE. Dexamine, Leach ; Polycheria, Haswell. Family TALITRIDAE 

 (ORCHESTIIDAE). Talitrus, Latreille ; Orchestia, Leach ; Hyalella, S. Smith. 

 Family AORIDAE. Aora, Kroyer. Family PHOTIDAE. Photis, Kroyer. 

 Family ISAEIDAE. Isaea, H. Milne-Edwards. Family AMPHITHOIDAE. 

 Ainphitlwe, Leach. Family JASSIDAE (PODOCERIDAE auctt.). Jassa, Leach 

 (Podocerus auctt.). Family COROPHIIDAE. Corophium, Latreille. Family 

 CHELURIDAE. Chelura, Philippi. Family PODOCERIDAE. Podocerus, Leach 

 ( = Platophium, Dana). Family HYPERIOPSIDAE. Hyperiopsis, G. 0. Sars. 



SUB-ORDER 2. Hyperiidea, Dana (1852). 



Head not coalesced with second thoracic somite ; palp of maxillipeds 

 absent ; all the thoracic legs present, coxopodites small or coalesced with 

 the body ; abdominal somites generally distinct, with well-developed 

 appendages ; eyes generally very large. 



Family SCINIDAE. Scina, Prestandrea. Family VIBILIIDAE. Vibilia, 

 H. Milne- Edwards. Family CYLLOPODIDAE. Cyllopus, Dana. Family 

 LAXCEOLIDAE. Lanceola, Say. Family CYSTISOMATIDAE. Cystisoma, 

 Guerin. Family PARAPHRONIMIDAE. Paraphronima, Glaus. Family 

 PHRONIMIDAE. Phronima, Latreille (Fig 136). Family MIMOXECTIDAE. 

 Mimonectes, Bovallius. Family HYPERIIDAE. Hyperia, Latreille ; Plironi- 

 mopsis, Glaus ; Euthemisto, Bovallius. Family PHROSINIDAE. Phrosina, 

 Risso. Family PHORCORRHAPHIDAE. Phorcorrhaphis, Stebbing. Family 

 PLATYSCELIDAE. Platyscelus, Spence Bate. Family SCELIDAE. Thyropus, 

 Dana. Family PRONOIDAE. Pronoe, Guerin. Family TRYPHANIDAE. 

 Trypliana, Boeck. Family OXYCEPHALIDAE. Oxycephalus, H. Milne- 

 Edwards ; Rhabdosoma, White (Fig. 133). 



16 



