43 



4449-55 



9 

 7201-4 



9 

 400 

 10 

 736 



■Jo" 



Madras. Purchased. 



Ganjam and Vizagapatam. 

 Palk Strait. 



" Investigator." 

 Types. Persian Gulf. P. W. Townsend. 



Teachypeneus, Alcock. 



Alcock, Cat. Indian Deep-Sea Crust., 1901, p. 15. 



Type: T, curvirostris Stimpson ( = T. anc/wraJts Spenee Bate). 



Rostrum toothed dorsally only. Antero-inferior angles of carapace fairly 

 well pronounced. Post-antennular 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 masillules short, unsegmented. 

 Petaloid exopodites are present on all the thoracic legs. 



Bpipodites absent from 8rd maxilHpeds, as well as from the last two thora- 

 cic appendages. No pleuro branchiae on the last two thoracic somites. 



Andricum symmetrical. The 8rd maxillipeds and last thoracic legs are 

 not known to be modified in the male. 



The branchial formula is : — 



Total 5 ep.+ l 11 4 = 5ep.+ 16 



In addition to the Indian species, I have examined specimens of T. curviros- 

 tris (=T. anchoraJis) and 7'. cnvstrictus. 



1. Teachypeneus aspee Alcock. Plate IX, fig. 28, 28a, b. 



Trachypeneus asper, Alcock, Ann. Mag. Nat. Hist, (7) xvi. 1905, p. 531. 



Integument very thick and hard, tomentose, finely scabrous. 



Rostrum quite straight, uptilted, strongly so in the female, not reaching 

 the end of the 2nd ^oint of the antennular peduncle : dorsally it is armed with 

 9 or 10 teeth (not including the isolated epigastric tooth) which form a crest. 



