(Tiaiiiiuarii.s 46& 



little divergent, each with 3 spinules ou convex raargiu, and 1 spiuule with 

 2 setules on rounded apcx. L. 9 about 6, c? 7 mm. 



( 'aspian Sea. Depth — 5 m. 



15. G. pavixillus Ü. Sars 1896 G. p. (O. Grimm in MS.), G. O. Sars in: Eull. Ac, 

 St.-P(Hersb., ser. 5 r. 4 p. 467 t. 10 f. 1—17. 



Body slender and compressed, dorsally smootli except for a few sniall 

 liairs at end of pleou segments 4 — 6, segments 5 and 6 each with 1 spinale 

 on either side. Head, lateral lobes obliquelv truncated, upper corner the 

 niore prominent. Side-plates 1 — 4 not very large, without setae, 1^* a little 

 expanded distally, 'J^ — 4*'> with front corners rounded off. Pleon segments 2 

 and ;}, postero-lateral corners quadrate. Eyes rather lai'ge, oblong oval, dark, 

 Antenna 1 slender, more than half as long as body, 2^ Joint nearly as long as l^S 

 flagellum twice as long as peduncle, filiform, 16 — 20-joiuted, accessory flagellum 

 3-jointed. Antenna 2 scareely more than half as long, flagellum 5 — 7-jointed. 

 Gnathopods 1 and 2 in 9 small and feeble, 6*'! Joint oblong, in gnathopod 2 

 rather longer than in gnathopod 1, slightly widened distally, palm less 

 oblique. Gnathopods 1 and 2 in d powerful, especially gnathopod 2, 6*'* Joint 

 oblong oval, palm much shorter than bind margin. Peraeopods 1 and 2 

 slender, with few setae. Peraeopods 3 — 5, 2^ Joint not greatly expanded,. 

 narrowing distally, bind margin not forming a free corner. Uropod 3 extending 

 much beyond the others, outer ramus long, narrow, with fascicles of spines,. 

 2*^ Joint spiniform, tipped with 2 unequal setules, inner ramus very small, 

 shorter than the short peduncle. Telson very short. nearly twice as broad 

 as long, the broadly rounded apex of each lobe smooth, but the outer margiu 

 just above carrying 2 setules. L. 9 about 4, d 6 mm. 



• Caspian Sea. Depth 75 — 202 m. " 



16. G. kietlinskii Dyb. 1874 G. k., B. Dybowsky in: Horae Soc. ent. Ross., 

 V. 10 suppl. p. 57 t. 1 f. 1 1 18t»3 G. fluviatilis (part.)?, A. Della Valle in: F. Fl. Neapel, 

 f. 20 p. 929. 



Pleon segments 4 — 6 each carrying a median and 2 lateral groups 

 of spines on slight elevations of the bind margin, in segment 4 each lateral 

 group having 2 or 3 spines, the median having 2 spines. each on a separate 

 elevation. Head, rostrum short, depressed. Side-plates 1 — 4 small, low, 

 lower margins not coutinuous. Pleou segments 2 and 3, postero-lateral 

 corners obliquely truncate from behind forward. Eyes reuilorm, narrow, 

 somewhat widened below, black. Antenna 1 about half as long as body, 

 flagellum longer than peduncle, 75-jointed, accessory flagellum 14-jointed. 

 Antenna 2 not much shorter, flagellum shorter than peduncle, 80-jointed, 

 with large calceoli in both sexes. Gnathopods l and. 2 with 6*1' Joint equal 

 in both sexes, more or less piriform. Peraeopods 3 — 5, 2^ Joint very slender, 

 expansion not great above and thence tapering. üropods 1 and 2 reaching 

 end of shorter ramus of uropod 3. Uropod 3 about ^/^ as long as body, 

 rami thickly fringed with fascicles of simple setae and having a few plumose 

 setae on inner margin of outer and both margins of inner ramus, the latter 

 ^'2 or ^/^ as long as outer ramus. Colour red, margins of segments and 

 side-plates, joints and apices of appendages yellow or olive-greenish. L. 81 mm. 



Lake Baikal. Depth 50 m. 



17. G. andrussowi O. Sars 1896 G. a., (t. 0. Sars in: Bull. Ac. St.-Petersb., 

 ser. 5 V. 4 p. 469 t. 10 f. 18—26. 



