432 a. 0. SARS, 



The gnathopoda (see fig. 8) are rather powerfully developed, and show 

 the specimen to be an adult male. In structure they seem to agree rather 

 closely with those in the males of the other species. 



The pereiopoda also do not seem to exhibit any marked difference from 

 those in the 2 previously described species. 



The 2 anterior pairs of uropoda are very unequal in size, the 1st pair 

 being fully twice as long as the 2nd. Their structure is, however, the 

 usual one. 



The last pair of uropoda (tig. 11) are rather robust, and project con- 

 siderably beyond the others, though not quite attaining the length of the uro- 

 some. The outer ramus is unusually broad, foliaceous, and exhibits a rather 

 small terminal joint. On the outer edge of the ramus there are about 6 dense 

 fascicles of slender spines, and on the inner edge 4 similar ones. The inner 

 ramus is less rudimentary than in the other species, being almost half the 

 length of the outer, and carries on the tip several slender spines. 



The telson (fig. 12) is comparatively large, and oval in form, and is 

 divided by a narrow, fissure-like cleft into two halves, each of which has 

 from 4 to 5 slender lateral spines. The tip of the lateral lobes is obtusely 

 truncated and armed with a dense row of about 7 slender spines. 



Occurrence. — The above-described sjjecimen was taken by Mr. War- 

 pachowsky at Stat. 69, probably in the eastern part of the North 

 Caspian Sea. 



5. Gmelina pusilla, G. 0. Sars, n. sp. 



(PI. 2, figs. 13—21). 



Specific Characters. — $. Body rather short and stout, somewhat com- 

 pressed, and perfectly smooth throughout. Cephalon with the lateral lobes 

 angularly produced in front. Anterior pairs of coxal plates rather deep and 

 fringed distally with scattered bristles; 1st pair obliquely expanded, so as 

 to form a rounded lobe extending forwards; 4th pair somewhat less deep 

 than the preceding ones, and scarcely broader. Last pair of epimeral plates 

 of inetasome nearly rectangular. Urosome without any spines or hairs dors- 

 ally. Eyes of moderate size and placed unusually far down, close to the 

 lateral corners of cephalon. Antennae comparatively short, subequal in 

 length. Gnathopoda rather feeble, propodos of the anterior ones oval, that 

 of the posterior oblong quadrangular. Posterior pairs of pereiopoda com- 

 paratively short, basal joint of last pair rather large, irregularly oval, and 

 densely setous both anteriorly and posteriorly. Last pair of uropoda not 

 very large, outer ramus gradually tapering distally, inner ramus very small. 



*ii8.-M»T. CTp. 262. 12 



