THE DECAPODA 311 



Sub- Family ARISTKIXAE. Arideus, Duvernoy (Fig. 168, p. 289); 

 Benthesicymus, Spence Bate. Sub-Family SICYONINAE. Sicyonia, H. 

 Milne-Edward?. Sub-Family PEXAEINAE. Penaeus, Fabricius ; Solenocera, 

 Lucas. Family SERGESTIDAE. Sub-Family SERGE.STINAE. Sergestes, H. 

 Milne- Edwards. Sub-Family LEUCIFERINAE. Leutifer, H. Milne-Edwards 

 ( Lucifer, J. V. Thompson). [Sub-Family AMPHIONINAE. Amphion, 

 H. Milne-Edwanls. (The validity and the systematic place of this genus 

 are still doubtful.)] 



TRIBE 2. CARIDEA. 



Pleura of second abdominal somite overlapping those in front ; 

 antennae generally with stylocerite; mandibular palp, if present, straight ; 

 first maxillipeds with expansion at base of exopodite, endopodite short ; 

 second maxillipeds usually with last segment articulating laterally with 

 preceding ; third maxillipeds with four to six segments ; third legs never 

 chelate ; first pleopods of male without petasma ; gills phyllobranchiate. 



Family PASIPHAEIDAE. Pasij)haea, Savigny ; Psathyrocaris, Wood- 

 Mason (Fig. 160, p. 270). Family BRKSILIIDAE. Bresilia, Caiman. 

 Family HOPLOPHORIDAE (ACAXTHEPHYRIDAE). Hoplophonts, H. Milne- 

 Edwards ; Acanthephyra, A.Milne-Edwards. Family NEMATOCARCINIDAE. 

 Nematocarcinus, A. Milne-Edwards. Family ATYIDAE. Atya, Leach ; 

 Caridina, H. Milne-Edwards ; Limnocaridina, Caiman. Family STYLO- 

 DACTYLIDAE. Stylodactylus, A. Milne-Edwards. Family PSALIDOPODIDAE. 

 Psalidopus, Wood-Mason and Alcock (Fig. 163, p. 272). Family 

 PANDALIDAE. Sub-Family PANDALINAE. Pandalus, Leach ; Heterocarpus, 

 \. Milne-Edwards (Fig. 148, p. 259) ; Pandalina, Caiman. Sub-Family 

 THALASSOCARIXAE. Thalassocaris, Stimpson. Family ~ALPHEIDAE. 

 Alpheus, Fabricius ; Athanas, Leach. Family HIPPOLYTIDAE. Hippolyte, 

 Leach (Virbius, Stimpson); Spirontocaris, Spence Bate; Latreutes, 

 Stimpson. Family RHYNCHOCINETIDAE. Bhynchocinetes, H. Milne- 

 Edwards. Family PALAEMONIDAE. Sub-Family PALAEMONINAE. 

 Palaemov, Fabricius ; Palaemonetes t Heller ; Leander, Desmarest. Sub- 

 Family PON T TONIIXAE. Pontonia, Latreille ; Typton, Costa. Sub-Family 

 KYMENOCERINAE. Hymenocera, Latreille. Family GNATHOPHYLLIDAE. 

 Gnatkophyllum, Latreille. Family PROCESSIDAE. Processa, Leach (Nibi, 

 Uisso). Family GLYPHOCRANGONIDAE. Glyphocmngon, A. Milne-Edwards. 

 Family CRANGONIDAE. Crangon, Fabricius ; Paracrangon, Dana. 



TRIBE 3. STENOPIDEA. 



Pleura of second abdominal somite not overlapping those in front ; 

 antennae without stylocerite ; mandibular palp curved inwards ; first 

 maxillipeds without expansion at base of exopodite, endopodite short ; 

 second maxillipeds with terminal segments normal ; third maxillipeds 

 with seven segments ; third legs chelate, one or both much longer and 

 stouter than first two pairs ; first pleopods of male without petasma ; 

 gills trichobranchiate. 



Family STKNOPIDAE. Stenopus, Latreille ; Spongicola, de Haan. 



