CRUSTACEA CASPIA. 311 



in this tliau in most other species, the 2nd pair being very small as com- 

 pared with the |st. 



The last pair of uropoda (fig. 16) have the terminal joint considerably 

 narrower than the proximal one, and are only provided with a restricted 

 number of bristles, between which a single apical spine is distinguished. 

 In the typical species, C. grossipes Lin., tliis joint is much broader and 

 lamelliform, without any spine. 



The pigmentation of the body would seem to differ somewhat in different 

 specimens, being as a rule restricted to the ceplialon and the 6 anterior seg- 

 ments of the mesosome only, whereas the posterior part of tlie body appears 

 almost devoid of pigment. On the antennae the pigment has a similar ar- 

 rangement as is found in most other species. 



Occurrence. — Of this species numerous specimens were collected by 

 Mr. Warpachowsky at Stat. 63, lying in tJie eastern part of the North 

 Caspian Sea. Solitary specimens were moreover taken at Stat. 64, in the 

 neighbourhood of the foi-mer and at Stat. 59, in the western part of the 

 basin. 



In the collection of Dr. Grimm this species is represented by a few, in 

 most cases very badly preserved specimens, which, according to the labels, 

 were collected partly in the South Caspian Sea, partly in the Bays of 

 Murawjew and Krasnowodsk, the greatest depth being 40 fathoms. 



liHa.-MaT. CTp. 219. 37 



