678 Unciola 



inner, each armed witli a few stout spiues. üropod 3, peduncle forming a 

 rather broad, oblique plate; its hinder angle reaching beyond apex of telsou, 

 armed with a large spine and some setae; inner ramus in no way marked 

 off from peduncle, outer attached at middle of outer side of peduncle, rather 

 large, armed with a minute spine and some long setae. Telson as broad 

 as long; apical margin much more curved than basal. L. 5-7 mm. 



Davis Strait (lal. 69» N., long. 580W.). Depth 339 m. 



2. U. leueopis (Kreyer) 1845 Glauconome l, Kreycr in: Naturh. Tidsskr., 

 ser. 2 V. 1 p. 49i t. 7 f. 2a-e'| 1846 G. l, Kreyer in: Voy. Nord., Cnist. t. 19 f. 1 a— u \ 

 1894 Unciola l, (1. 0. Sars, Criisl. Norway, v. 1 p. 620 t. 222 | 1896 U. l, J. Bonnier 

 in: Ann. Univ. Lyon, z;. 26 p. 666 | 1862 U. L, U.leucopes, Bäte, Cat. Amphip. Brit. Mus., 

 p. 279 t.47 f. 3 I 1880 U. in-orata (pari), S. I. Smith in: Tr. Connect. Ac, vA p. 280 | 

 1882 U. i., G. 0. Sars in: Forh. Selsk. Christian., nr. 18 p. 114 | 1887 U. i., H. J. Hansen 

 in: Dijmphna Udb., p. 232 \ 1887 U. i., H. J. Hansen in: Vid. Meddel., ser. 4 v.9 p. 164 

 t. 6 f. 5, 5a i 1889 U. i. (part.), J. Bonnier in: Bull. sei. France Belgique, i'. 20 p. 393 j 

 1893 U. i. (part.), A. Della Valle in: F. Fl. Neapel, v. 20 p. 338. 



Body rather strongly constructed, peraeon segments ti-ansversely furrowed, 

 pleon Segments 1 — 3 each with roundcd prominence on each side. Head, 

 rostrum acute, rather long; front corners obtuse, rather prominent. Side- 

 plates 1 — 4 subacute in front, 5*^ deeper than the rest. Pleon segment 3, 

 postevo-lateral corners acute with sinus above. Eyes represented by a small 

 patch of opaque whitish pigment on each side. Anteuna 1 nearly -/s ^s 

 long as body; 2*^ Joint rather longer than P*, not twice as long as 3^; 

 flagellum rather shorter than peduncle, about Ifi-jointed; accessory flagellum 

 5-jointed. Antenna 2, antepenultimate Joint of peduncle nearly as in ü. peta- 

 locera (p. 681), but penultimate Joint not so widely expanded at base; ulti- 

 mate Joint nearly as long as penultimate; flagellum nearly half as long as 

 peduncle, about 10-jointed. Gnathopod 1 nearly as in Ü. irrorata, except 

 that in d* the palm is angularly prominent between 2 cavities. Gnathopod 2 

 rather feeble, densely setose; 6^^ Joint about as long as 5*^, narrowly oblong; 

 palm very short, transverse. Peraeopods 3 — 5, 2'^ Joint slightly expanded, 

 densely setose. Uropods 1 and 2 rather stout; rami in each subequal, with 

 sti'ong apical spine. üropod 3 very small; process of peduncle broad, narrowing 

 gradually to apex tipped with 4 setae; inner ramus not marked off, outer 

 very small, not nearly reaching end of process of peduncle, tipped with 

 4 setae. Telson round, with setule on each side. Colour yellowish grey. 

 L. 13 mm. 



Arctic Ocean (widely distributed, depth to 300 m; Varangerfjord [Norway], 

 depth 170—226 m). 



3. U. irrorata Say 1818 U. i., Say in: .1. Ac. Philad.. r. lii p. 389 | 1840 U. i., 

 H. Milne Edwards, Hist. nat. Crust., v.'d p. 69 i 18.53 U. i., Stinipson in: Sn.ithson. 

 Contr., V. 6 nr. 5 p. 45 | 1862 U. l, Bäte, Cat. Amphip. Brit. Mus., p. 279 | 1873 U. l, 

 (S. 1 Smith in:) A. E. Verrill in: Rep. U. S. Fish Comm., v. l p. 340, 567 t. 4 f. 19 | 1880 

 U. i., S. I. Smith in: Tr. Connect. Ac, v. 4 p. 280 ] ?1888 ü. L, T. Stebbing in: liep. 

 Voy. Challeuger, ».29 p. 1169 t. 138c | 1889 U. i. (part.), J. Bonnier in: Bull. sei. France 

 Belgique, ».20 p. 393 | 1893 U. i. (part.), A. Della Valle in: F. Fl. Neapel, t^. 20 p. 338 

 t. 55 f. 37—41. 



Body dorsally broad, flattened. Head, rostrum distinct, acute, lateral 

 corners blunt, moderately prominent. Side-plates very shallow, 1^^ — 4*^ with 

 front Corner acute. Pleon segment 3, postero-lateral corners acute, with 



