Lembos 599 



such fascicles as there are being chiefly oii hind margin of 3*^ — Q^^ joints; 

 5*^ Joint stout, much shorter than 6*^ which widens a little to the transverse 

 bidentate palm, the defining tooth separated by a cavity from a smaller 

 submedian tooth, between which and the finger-hinge the palm is sinuously 

 denticulate; apex of almost smooth finger closing against inner margin of 

 the defining tooth. Gnathopod 2 narrower, except the broadly expanded, 

 oval 2^ Joint; 5*^ broader than 6*^, a little shorter, with long setae fringing 

 distal % of front; 6*^ oblong, the rather convex front margin strongly 

 fringed; palm pectinate, almost transverse, defined by obtuse angle and 

 palmar spines, a little overlapped by the short, stout, serrate finger. Peraeo- 

 pods 1 and 2 slightly armed. Peraeopods 3 — 5, 2^ Joint not much expanded; 

 peraeopod 4 much longer than S^, 5**» than 4**^; finger not long, üropod 3, 

 rami short, subequal, longer than peduncle. Teison oval, narrowing distally, 

 with a seta at the notch on each side of the rounded apex. L. about 5 mm. 



Cumberland Bay [Kerguelen Island]. Depth 239 m. 



9. L. websterii Bäte 1856 L. w. (uom. nud.), Bäte in: Rep. Brit. Ass., 

 Meet. 25 p. 58 | 1857 L. iv., Bäte in: Ann. nat. Hist., ser. 2 i'. 19 p. 142 | 1895 L. w., 

 T. Stebbing in: Ann. nat. Hist., ser. 6 r. 16 p. 207 | 1862 Microdeutopus w., Bäte & 

 Westwood, Brit. sess. Criist., v. 1 p. 291 f. \ 1862 Microdentopus w., Bäte, Cat. Amphip. 

 Brit. Mus., p. 164 t. 30 f. 2 j \%^^ Microdeuteropus wehsteri, A. M. Norman in: Rep. Brit. 

 Ass., Meet. 38 p. 282 | 1887 Microdeutopus w., Chevreux in: Bull. Soc. zool. France, ul2 

 p.812 I 1894 Autonoe iv., G. 0. Sars, Crust. Norway, v. 1 p. 547 1. 194 ; 1876 Microdeuteropus 

 bidentatus, T. Stebbing in: Ann. nat. Hist., ser. 4 v.ll p.73 t.4 f.la; t.5 f. 1, Ib | 1876 

 Autonoe longipes (part.), A. Boeck, Skand. Arkt. Amphip., v. 2 p. 572 ] 1893 Autonoe l. 

 (part.), A. Della Valle in: F. FI. Neapel, v. 20 p. 403 t. 3 f. 13; t. 10 f. 20—30. 



Body rather tumid in Q . Side-plate 1 in d acutely produced, in 9 

 subrhomboidal. Pleon segment 3, postero-lateral corners rotundo-quadrate. 

 Eyes very small, rounded oval, dark. Antenna 1 more than V2 ^^ long as 

 body, 2*^ Joint longer than 1^*, not thrice as long as 3*^, flagellum longer 

 than peduncle, with about 15 joints, accessory flagellum with 4 or 5 joints, 

 last minute. Antenna 2 much shorter, ultimate Joint of peduncle as long 

 as penultimate, longer than the 4- or 5-jointed flagellum. Gnathopod 1 

 in d, 2^ Joint without brush of long setae at lower hind corner; 4*^ and 

 5*^ with long setae on hind margin; 5*'^ and 6*^ densely fringed on convex 

 front margin, both stout, subequal: palm transverse, defined by a strong 

 tooth, separated by a cavity from a smaller inner one, while on the outer 

 side a palmar spine Springs from a small prominence (Della Valle: a little 

 tooth); the serrate finger reaching the tip of the spine. Gnathopod 2 in d, 

 2^ Joint with lower front corner a little produced outward; 5*^ and 6*^ joints 

 long and narrow, densely fringed on both margins, especially the front, palm 

 short, nearly transverse, a little overlapped by the short finger. Gnathopod 1 

 in 9, 6^^ Joint much longer than 5*^^, oblong oval, palm ill-defined, finger 

 seiTate. Gnathopod 2 in Q much smaller, similar to gnathopod 2 in cJ, 

 but smaller, corner of 2^ Joint not produced, front of ö^^'^and 6*^ not densely 

 fringed. Peraeopods 1 and 2 slightly armed. Peraeopods 3 — 5, 2^ Joint 

 oblong oval, not very broad; peraeopod 5 much the longest. üropod 3, 

 rami nearly equal, not much longer than peduncle. Teison rounded oval, 

 with 3 spines on each side of the somewhat angular tip. Colour whitish, 

 with narrow transverse bands of dark brown specks. L. 5 — 6 mm. 



North- Atlantic with adjoining seas (south and west of Norway. north and south of 

 Great Britain, France); Mediterranean (Naples). Generally in comparatively shallow water. 



