79 



deal shorter than the rest of the carapace). Its basal moiety is nearly horizontal, 

 its distal moiety is somewhat abruptly ascendant. Its dorsal border is smooth 

 and entire except at the extreme proximal end where there are 4 or 5 teeth, the 

 first 2 or 3 of which are very small : on its ventral border is a single large tooth 

 situated near, and accenting, the point where it becomes ascendant. 



The cervical groove is practically obsolete. The post-antennal spine is very 

 salient and is continued backwards, to the end of the hepatic groove, as a sharp 

 carina. 



The abdominal terga are carinated as in A. csimia, the only difference 

 being that the spines which terminate the carina) of the 4th and 5th terga are 

 quite as large as that of the 6th and nearly as large as that of the 3rd. 



The eyes are nearly black, and there is a distinct " ocellus." 



The antennal scale is rather more than two-thirds the length of the carapace 

 proper. 



The thoracic legs, especially those of the last 3 pairs, are much more setose. 

 Colour in life, crimson. 



In the largest perfect specimen the length of the rostrum is 36 millim., of 

 the carapace 51 millim., and of the abdomen 104 millim., in the smallest perfect 

 specimen the length of the rostrum is 32 millim., of the carapace 24 millim., and 

 of the abdomen 57 millim. 



Found here in the Arabian Sea, off the S. W. coast of India, in 406 fathoms, 

 in the Bay of Bengal in 475, and 594-225 fathoms, and in the Andaman Sea in 

 405 fathoms. 



-r, T AT 6753 9222-9223 283-284 798 3807-3809 



Regd. Nos. : - : -^- : - : . 



41. Acanthephyra sangulnea, Wood-Mason. 



Acanthephyra sanguinea, Wood-Mason, Ann. Mag. Nat. Hist., May 1892, p. 358, fig. 1. 

 ILLUSTRATIONS OP THE ZOOLOGY OF THE INVESTIGATOR, CRUSTACEA, PlATK III. FlO. 3. 



Differs from A. eximia in the following characters : 



The rostrum is slender and upcurved throughout, and is armed throughout 

 its extent with distant teeth, 8 or 9 on the dorsal border, 5 or 6 on the ventral. 

 (As in A. eximia, it varies in length, being usually longer but sometimes shorter 

 than the rest of the carapace). It is continued backwards, to within a short 

 distance of the posterior border of the carapace, as a very indistinct ridge. 



The cervical groove is obsolete: no ridge defines the branchial regions 

 superiorly: the hepatic groove is indistinct: the post-antt-itnal spine is minute 

 being even smaller than the small post-antennular spine, and is not buttressed 

 by any carina. 



