Indian Deep-sea Dreihjing. 229 



Somite. Poclobranchia>. 



VIll I (rudiiuriilarv) 



IX 1 



X 1 



XI 1 



XII I 



XlII 1 



XIV 



5 (0) 10 



The first paii- of abdominal a{)[)endages in tlie male is 

 modified precisely in the same wav as it is in NepJiropa 

 T/iomso7it\ Spencc Bate; the second and succeeding pairs are 

 also as in xY. lliointioni. 



Colours in life : dorsum yellowish pink ; venter pink in 

 the female, white in the male ; chelipeds banded pink and 

 yellow in the female, pink and white in the male. The eggs 

 in an advanced stage of development are dark blue. 



Several males of all sizes and ovigerous females from 

 Station 115, 188 to 220 fathoms. 



This species has been so beautifully figured under the 

 direction of the late Professor Wood-Mason that it is unneces- 

 sary to give a table of dimensions. 



The species is undoubtedly very closely related to N. Thoia- 

 soni, Spence Bate, of which it may prove to be only a 

 variety. 



One striking character, as compared with N. norioegicuSj 

 L., and .A^. japonicus. Can., is the very distinct delimitation 

 of the head from the thorax, distinct though it is in those 

 species. 



The Ova and Einhryos ofNephrops andamanicus. 



The ova of these specimens measure about 3 millira. in 

 their greater diameter, and are of a dark blue colour. 



They have been so long immersed in strong spirit, and are 

 consequently so brittle, tliat, no matter how treated, they do 

 not lend themselves to a satisfactory examination. All the 

 eggs that I have examined contain embryos in an advanced 

 stage of development, but have still abundant food-yolk. 

 The embryos have a globular cephalothorax and a long and 

 distinctly segmented abdomen which ends in a great fan- 

 shaped " tail." All the appendages are present, including 

 those of the abdomen, the latter having the same form as 

 they have in the adult, and those which form the swimmeret 



