(Tinelina 41H 



diminutive 2*^ Joint, inner raraus rather longer than broad. Telsou longer 

 than broad, projecting beyond peduncle of iiropod :], cleft raore than "'/i length, 

 outer margin tineh' ciliated, tlie lol^es narrowing to obtuse divergent apices, 

 each armed witb a spinule and setules. L. 9 12, d 16 mm. 



Caspian Sea. Depth — 38 m. 



2. G. kusnezowi (Sowinski ) 1894 Gammarus k., Sowinski in : Mein. Soc. Kiew , 

 r. K-5 p. 383 t. ft ; 1894 Gmelina k. (PallasieUa mamniillifera in MS.), U. O. Sars in: 

 Mnll. Ac. St.-Pötersb., ser. 5 r. 1 p. 197 t. 4. 



Rather slender and compressed, and more so in d than In Q , integument 

 crustaceous, witb uo median dorsal carina, but with a pair of subdorsal 

 prominenees on each segment from peraeon segraent 1 to pleon segment 3, 

 gradually encreasing from low tubercles to conspicuous knol>s; peraeon 

 Segments 1 — 5 (or 1 — 6) with conspicuous lateral projecting tuberculiform 

 prominenees; pleon Segments 4 — G dorsally smooth, except that on ö and 

 6 there are 2 fascicles of spinules. Head tapering, rostrum shoii: and narrow. 

 lateral lobes narrowly rounded, with a boss-like process above the post- 

 antennal corners. Pleon segments 2 and 3, postero-lateral corners acute, 

 subquadrate. Eyes oval reniform, highly protuberant, very dark. Antenna 1 

 Short, 1^* Joint little longer than 2*^, 2^^ twice as long as 3'\ flagellum shorter 

 than peduncle, with 15 short joints; accessory flagellum with 3 setules. 

 Antenna 2 subequal to antenna 1, ultimate Joint of peduncle shorter than pen- 

 ultimate, flagellum 6-jointed. Gnathopods 1 and 2 nearly as in G. costata, but 

 gnathopod 2 in o with palm more oblique. Peraeopods 1^ — 5 and uropods 1 

 and 2 nearly as in G. costata. Cropod .3 a little projecting beyond uropod 1. 

 outer ramus tapering to a narrowly truncate apex, the small but distinct 

 2 Joint carry ing several setules, inner ramus a little longer than broad, 

 tapering. Telson broader than long, scarcely as long as peduncle of uropod 3. 

 cleft deep, scarcely dehiscent, the lobes obtusely rounded, 2 spinules on 

 outer and 4 on apical margin of each. Colour in dark transverse bands. 

 L. 9 14, d 18 mm. 



Sea of Azov, Caspian Sea. 



3. G. laeviuscula O. Sars 1896 G. l, G. 0. Sars in: Bull. Ac. St.-Pctersb., 

 ser. 5 vA p.430 t. 2 f. 8 -12. 



9 unkuown. — ö. Kather slender, much compressed, without any 

 distinct tubercles or processes, pleon segments 4 — 6 dorsally tipped witb 

 small bristles. Head slightly tapering, rostrum well marked, lateral lobes 

 slightly produced, narrowly rounded. Pleon segment 3, postero-lateral corners 

 slightly produced, 2<^ segTnent simply quadrate. Eyes very small, oval, dark. 

 Antenna 1 rather the longer, flagellum shorter than peduncle, 10-jointed. 

 Antenna 2. ultimate Joint of peduncle shorter than "penultimate, flagellum 

 about half as long as peduncle. Gnathopods 1 and 2 rather powerful. these and 

 peraeopods 1 — 5 seeming to agree with those of the 2 preceding species. 

 Uropod 1 twice as long as uropod 2. Uropod 3 rather robust, projecting 

 somewhat beyond the others. outer ramus very broad, foliaceous, fringed 

 with fascicles of spinules, 2^ Joint small, inner ramus nearly half length of 

 outer, not very naiTow, nearly thrice as long as broad, tipped with spinules. 

 Telson rather large, oval, cleft nearly to the base, lobes scarcely at all 

 dehiscent. each with 4 or 5 spinules on outer margin, and about 7 on 

 l)roadly ti'uncate apex. L. 7 mm. 



North Caspian Sea. 



