136 



Colour in life bright pink, eyes dull yellow. 



In an egg-laden female the carapace (rostrum included) is 25 millim. the 

 abdomen 38 millim. in length, measured in the middle line. 



Bay of Bengal, near the Andamans, 561 fathoms. 

 Regd. No. ^Z (Types of the species) : ^. 



82. Glyphacrangon {Plastocr<tngon) cerea, Alcock & Anderson. 



Glyphocrangon cerea, Alcock & Anderson, Journal Asiatic Society of Bengal, Vol. LXIII. pt. 2, 1894, p. 151. 

 Illustrations of the Zoology of the Investigator, Crustacea, Plate IX. Fig. "6. 



Closely related to G. cseca, from which it differs only in the following 

 particulars : — 



The rows of tubercles representing the "dorsal" and "subdorsal" crests 

 of the carapace are blunter and less distinct : the double row of granules lying 

 between the anterior or gastric portions of the " dorsal " crests are almost 

 obsolete, and no granules define the cervical groove posteriorly. 



The " dorsolateral " crest, instead of being entire, is divided into two blunt 

 lobes. The anterior part of the " lateral " crest, though it ends in a huge 

 vertically-compressed wing-like spine as in G. cseca, is interrupted immediately 

 behind that spine. 



Three low swellings on its anterior margin represent the three carinas of 

 the 1st abdominal tergum ; the 2nd and 3rd terga have no trace whatever of a 

 median carina ; the 4th, 5th and 6th terga are carinated in the same general 

 fashion as in G. investigatoris, but, as in G. caeca, the carina' are less sharply cut 

 and that of the 6th tergum is not divided into two lobes. 



Except for these median carina? and for some lateral sculpturing on the 5th 

 and 6th somites, the abdomen is smooth. 



The pleura of the 5th abdominal somite end, like those of the 6th, in a 

 single recurved tooth. 



The major diameter of the eyes is not a sixth the length of the free 

 portion of the rostrum. The antennal scale has a smooth dorsal surface and is 

 three-fourths as broad as long. 



The length of the carapace (rostrum included) of the largest specimen is 18 

 millim., that of the abdomen 27 millim., measured in the middle line. 



Arabian Sea, between the Laccadives and Maldives, 719 fathoms. 

 Regd. Nos. — ~— (Types of the species). 



