AMPHIPODS FROM NORTH AMERICAN WEST COAST — SHOEMAKER 395 



(fig. 2/). Uropod 1 reaching back slightly farther than uropod 2, 

 2 slightly farther than 3. Uropods 1 and 2 scantily armed with short 

 spines. Uropod 3, peduncle longer than ramus, armed on upper 

 margin with 8 or 9 short spines, Telson broadly oval, reaching 

 slightly beyond end of third urosome segment, bearing 5 short spines 

 on either lateral margin. Pereon segments 6 and 7 and pleon seg- 

 ments 1 and 2 each produced dorsally into backward-pointing tooth. 

 Coxal plates 2-4 much deeper than their body segments. Coxal 

 plate 4 only of moderate size for genus Metopa. Length to 9 mm. 



Female. — Very much like male. Antennae shorter than in male. 

 Fifth and sixth joints of gnathopod 1 shorter. Sixth joint of gnatho- 

 pod 2 not so large; palm less oblique, with fine teeth and shorter 

 defining tooth. Female as large as male. 



Types.— Holotype male, USNM 96489, and 11 paratypes, USNM 

 107860, taken at Albatross station 4803, Cape RoUin, Simushir Island, 

 Kuriles (46°42' N, 15r45' E) in 229 fathoms, June 24, 1906. Single 



Figure 2. — Metopa stelleri, new species, male: a, entire animal; b, mandibular palp; c, 

 gnathopod 1; d, end of gnathopod 1; e, gnathopod 2;/, end of pereopod 2; female: g, 

 gnathopod 1; h, gnathopod 2. 



