160 



In the male the coxae of the 2nd-4th pairs of legs have the inner surface 

 concave and produced to short vertical teeth or tubercles, one of which on the 

 3rd pair is slightly hooked. In the female between the 4th pair of legs is a 

 pair of elongate compressed sternal tubercles. 



The modified 1st pair of abdominal appendages of the male, though 

 movable enough, are always flexed and cannot be extended backwards : they 

 are long narrow pointed laminae, with the inner surface concave and with 

 the anterior border notched near where it comes in contact with the prominent 

 genital tubercle of the coxa of the 5th pair of legs. 



In an egg-laden female the length of the rostrum is 16'5 millim., of the 

 carapace 30 millim., of the abdomen 58 millim. In the largest male the length 

 of the rostrum is 18 millim., of the carapace 43 millim., of abdomen 86 millim. 



From the Andaman Sea, 188-220, 261 and 405 fathoms ; from the Bay of 

 Bengal, 270 fathoms ; from the Arabian Sea, 360, 406 and 449-465 fathoms. 



Wood-Mason, with whom I agree, considered N. ayn^sizii A.M.E. (=(inilcitfn 

 S. I. Smith) to be identical with this species. 



j TVT /m it, \ 3111 6861-6868 8670 39 1406-1407 



Kegd. Nos. 1404 (Type of the species) : : ^ : : : : 



2014 M73 

 10 ' 10 ' 



i)2. Nephropsis Carpenteri, Wood-Mason. 



Kephrofais Carpenteri, Wood-Mason, Proc. Asiatic Soc. Bengnl. 1885. p. 70: Alcock and Anderson, Jonrn. 

 Aiiatie Soc. Bengal, Vol. LXIII. pt. 2, 189*, p. 161. 



ILLUSTRATIONS OF THE ZOOLOGY OF THE INVESTIGATOR, CRUSTACEA, Pl.ATK XXVII. FlG. 2. 



Closely resembles N. Stewarti, from which it differs only in the following 

 characters : 



The rostrum is never more than two-fifths the length of the rest of the 

 carapace measured in the middle line, and is almost straight. 



The cervical groove is broadly V" sna P e ^) and though not actually inter- 

 rupted, is indistinct in the mid-dorsal line. 



The abdominal terga from the 3rd to the 6th are longitudinally traversed, 

 in more or less of their extent, by a low, median, granular carina. 



The 3rd joint of the antennular peduncle is only about as long as the 

 1st joint. 



The longer of the large chelipeds of the male is only as long as the body 

 behind the cervical suture, and its hand is hardly as long as its combined 

 ischium and merus. 



Colours in life variable. Ivory white with orange-red markings (Giles: 

 female). Piuk, with white antennules and antenna?, and with the two median 

 tubercles of the back white (Anderson). 



