522 Dr. A. Alcock — A Revision 



{Pnrapciuopsis maxillipedo, Alcock. — Bombay, ^Madras, Arakan 

 coast. This species may pruve to be ideutical with P. cornuta, 

 Kish.) 



4. rnrajjeneopsis uncta, Alcock, sp. n. — Ganjam coast. 



o. Parapeneopsis nana, Alcock, sp. n. — Coromandel coast. 



G. Parapeneopsu yracillimn, Nobili, Boll. Mas. Torino, xviii. no. 447, 

 19U3, p. 4, fig. 1.— Borneo. 



III. Epipodite present on the second maxiUipeds only. 



7. Parapeneopsis ucclivirostris, Alcock, sp. n. — Persian Gulf, Coromandel 



coast. 



8. Parapeneopsis Himyerfordii^ Alcock, sp. n. — Hongkong. 



6. Track YPENEUs^ Alcock, 



Trachypeneus, Alcock, Cat. Indian Deep-sea Crust. 1901, p. 15. 



Type, T. curvirostris, Stimpson {=T. anchoralis, Spence 

 Bate). 



Rostrum toothed dorsally only. Antero-inferior angles of 

 carapace fairly well pronounced. Postantennular sulcus 

 defined only ventrally. 



Carapace with longitudinal and transverse sutures, but 

 the former is very short, existing only in the orbital region. 



Antennular flagella short. Endopodite of maxillules 

 short, unsegmented. Petaloid exopodites are present on all 

 the thoracic legs. 



Epipodites absent from third maxillipeds, as well as from 

 the last two thoracic appendages. No pleurobranchiae on 

 the last two thoracic somites. 



Andricum symmetrical. The third maxillipeds and last 

 thoracic legs are not known to be modified in the male. 



The branchial formula is : — 



In addition to the Indian species I have examined specimens 

 of T. ciirvb-ostris {—T. anchoralis) and T. constrkhis. 



