306 fi- 0. SAKS, 



tliau tlie 1st. The flagellum iu noue of tlie sexes attains the leugtli of the 

 peduncle, and is composed of about 1 2 aiticulatious. 



Tlie inferior autenuw are less different in tlie two sexes than is the case 

 in C. curvispimim, exhibitiuj;' iu both of tiiem a very robust structure. In 

 the male, however, they are (see tig. 10), as usual, somewhat coarser than in 

 the female, exceeding somewhat iu length % of the body. Tiie penultimate 

 joint of the peduncle is ver\ large and tumid, nearly as long as the last 

 joint and the flagellum combined, and is produced at the end posteriorly to 

 a moderately long, and but sliglitly curved spiniform projection, at the base 

 of which there is a small, slightly bilobed expansion, similar to that found 

 in C. curvispinmn. The last joint of tlie peduncle has somewhat above tlie 

 middle posteriorly a short recurved prominence, and the end of the joint is 

 produced to a strong spiniform process similar to that in G. chdicornc. The 

 flagellum is comparatively short, scarcely equalling in length the last ped- 

 uncular joint, and exhibits the usual structure. 



The gnathopoda do not exhibit any peculiarity in their structure. 



The 2 anterior pairs of pereiopoda (fig. 13) on the whole resemble those 

 in C. curvisjoinum, though tliey are somewhat more elongated. Tlie basal 

 joint is pronouncedly laminar and edged anteriorly witli long sctic. The 

 meral joint is about the length of the last 2 combined and rather broad, 

 being in the male densely clothed witli bristles anteriorly. 



The last pair of pereiopoda (tig. 1 4) ai)pear somewhat more elongated 

 than in C. curvispintcm, considerably exceeding half the length of the body, 

 but otherwise they exhibit a very similar structure. 



Also the uropoda and the telson are but little different, though, on a 

 closer comparison, small differences may be stated to exist. Thus in com- 

 paring tlie 2nd pair of uropoda (tig. 16) with those in C. curvispinum (fig. 9), 

 the rami are found to be comparatively longer and also armed with a greater 

 number of spines. 



The pigmentation of the body is very distinct and of a darker hue than 

 in the other species. 



Occurrence. — Of this species only a few specimens were collected by 

 Mr. Warpacliowsky at Stat. 32, about midway between the peninsula 

 Mangyschlak and the opposite western coast. Some other specimens were 

 collected last summer at Stat. 83, probably located in the eastern part of 

 the North Caspian Sea. 



In tlie collection of Dr. Grimm the species is represented by rather 

 numerous specimens, partly collected in the Bays of Baku and Schachowaja 

 from shallow water, partly in the middle part of the Caspian Sea from depths 

 ranging from 7 to 40 fathoms. 



*U3.-iIllT. CTp. 214. 32 



