226 Surg.-Capt. A. Alcock on 



Family Nematocarcinidae. 

 Nematocaecinus, a. Milne-Edwards. 



58. Nematocarcinus gracilis J Spence Bate. 



Nematocarcintis gracilis, Spence Bate, ' Challenger ' Macrura, p. 815, 

 pi. cxxxii. fig. 8. 



Several specimens from Station 120, 240 to 276 fathoms. 



59. Nematocarcinus paucideniatuSj Spence Bate. 



Nematocarcinus paucidentatus, Spence Bate, 'Challenger' Macrura, 

 p. 816, pi. cxxxii. fig. 9. 



Two ovigcrous females from Station 115, 1S8 to 220 

 fathoms. The colour in life was pink, the eggs being light 

 blue. 



60. Nematocarcinus tenuirostris, Spence Bate. 



Nematocarcinus tenuirostris, Spence Bate, ' Challenger ' Macrura, p. 817, 

 pi. xxxii. fig. 10. 



A large male from Station 112, 561 fathoms. Colour in 



life bright orange-pink. 



ASTACIDEA. 

 Family Homaridae. 

 Nepheops, Leach. 



61. Nephrops ajidamanicus, Wood-Mason. 



Nep/irops ayidaynanicus, Wood-Mason, Illustrations of the Zoology of 

 11. M. I.M.S. ' Investigator,' Crustacea, pi. iv. 



The integument, though thin, is strong and firm, and 

 dorsally is everywhere on the body finely granuhir and 

 slightly pubescent. 



The carapace measured to the tip of the rostrum is about 

 half an eye-length short of half the total length, the rostrum 

 measured from the orbital plate constituting about one third 

 of this measurement. The rostrum is broad and concave 

 above and ends in a compressed spine, at the base of which 

 on the under surface is a similar spine, and on each lateral 

 margin another large spine ; behind the last the lateral margins 

 of the rostrum extend backwards almost to the cervical groove, 

 each as a ridge formed of three great trenchant procumbent 



