Indian Dcrji-sea Dredijing. 165 



iis a backwardly diminisliing carina, which is sharp and 

 toliaceous in its anterior iialt" and blunt in its posterior half) ; 

 in the pigment of the eyes being brown instead of black ; in 

 the sixth abdominal tergum alone being distinctly carinated ; 

 and probably in the relative proportions of its different parts. 



From P. princeps it differs in the tel.son being shorter than 

 the sixth abdominal somite and in the meropoditcs of the first 

 pair of legs being armed with three spines npon their lower 

 margin. 



From P. acutlfrons it differs very markedly in the form of 

 tlie postfrontal spine, and, according to Spence Bate's figure, 

 in the strongly arched outer margin of the antennal scale. 



From P. forceps it differs no less markedly than from 

 P. acutlfrons in the form of the postfrontal spine, and, besides, 

 in its more unequal and absolutely much longer antennulary 

 flagella ; in the notch at the extremity of the telson being 

 acutangular and fringed to the bottom on each side with 

 minute spinules ; in the point of the fixed arm of the claws of 

 the first pair of legs being simple ; and probably ia other 

 details. 



Of the three, P. princeps is the one to which it is most 

 nearly related. 



Length, from middle of frontal margin to tip of telson, 

 59 millim.; of carapace, from middle of frontal to middle of 

 posterior margin, 18 millim. ; of abdomen, from base to tip 

 of telson, 41 millim. ; of telson 8 millim. ; of sixth abdominal 

 somite 9'75 millim.; of antennal scale 8 millim. 



Parapasiphae, S. I. Smith. 



a. Antennal and branchiostegal spines absent Sect. Parapasiphae. 



The following species come into this section : — 



1. Parapasiphae sulcafifronSjS.l. Smith, 'Albatross' Crust., 



1884, p. 40, pi. V. fig. 4, pi. vi. figs. 1-7, cJ ? . Western 

 Atlantic, 515 to 2949 fathoms. 



2. Parapasiphae cristata, id. ibid. p. 44, pi. v. fig. 3, ? . 



Western Atlantic, 1628 fathoms. 



b. Antennal and branchiostegal spines present Sect. Eupasipha'e. 



To this section belong the following : — 



55. Parapasiphae [Eupasipha'e) latirostris, W.-^f. 



Parapasiphae latirostris, Wood-Mason, Ann. & Ma;^. 2\at. Hist. (6) vii. 

 18yl, p. 19G, 2 . 



We give a figure of this fine species the size of nature 

 (fig. 2, p. 160). 



