131 



The sculpture of the abdominal tonga consists ol' low blunt " worn" ridges, 

 in more or less distinctly longitudinal aeries. The carinae of the 2nd and 3rd 

 and of the anterior half of the 4th terga are low, blunt, and " worn." 



In the male the antomiular flagella are a good deal longer than thein 

 peduncle, and the outer Hiigellum is sdmost foliaceous in its proximal threi'- 

 fourths. 



The length of the antennal scale is twice its Im-iidtli : the antennal flagellum 

 is as long as the distance between the tip of the rostrum and the middle of the 

 telson. 



The external maxillipeds do not quite reach the tip of the antennal scale. 



The 2nd pair of thoracic legs are shorter than any of the last 3 pairs. The 

 dactyli of the 4th and 5th pair of legs have the outer margin produced as a 

 microscopic incurved claw. 



Colour in life, delicate pink. 



In an adult female the length of the carapace ;md rostrum is 37 millim., of 

 the abdomen 51 millim., measured in the middle line. 



Found only in the Arabian Sea, in the neighbourhood of the Laccadives and 

 northwards, at 7 40, 770, 824, and 947 fathoms. 



-r, n -vr 602-t -i 52 /m ,, ,, N .11 53-54 HIM 235fi 



Regd. Nos. -55- and To (Types of the species) : - : -^- : -- : . 



78. Glyphocranffon hastaca'tula. Spence Bate. 



Glyphocrangon hantaeaitda, Spence Bate, Challenger M.HTIIHI. p. "ill). pi. vciii. fig. 5 : Alcock and Amlfrson, 

 Journ. Asiatic Soc. Bengal, Vol. XTJIT. pt. 2, 1894, p. 151. 



Differs from G. iwvestigatoris in the following points : 



The anterior half of the 3rd or " dorso-lateral " crest is present, forming a 

 post-antennal crest continuous with the pre-eminently large vertically-compres- 

 sed antennal or orbital spine. 



The anterior half of the " subdorsal " crest, the posterior portion of the 

 " dorso-lateral " and " lateral " crests, and the anterior half of the " lateral " 

 crest all end anteriorly in small spines, the spine of the last named crest not 

 approaching the anterior border of the carapace. 



The " dorsal " and anterior half of the " subdorsal " crests are crenulate but 

 all the other crests are smooth to the naked eye. 



The surface of the carapace between the crests is smooth and is covered 

 with a fine deciduous pile. 



The dorsal surface of the abdomen is merely wrinkled and dimpled, and the 

 abdominal carinse, though corresponding exactly with those of G. investigator^ 

 in position and number, are lower and blunter, especially on the anterior somites. 



