MARINE GAMMARIDEAN AMPHIPODA 347 



medium size, conical, setulose, lacking ridges, palp attached distal to 

 molar; gnathopod 1 chelate, article 6 and chela slender, article 6 much 

 longer than 5; inner ramus of uropod 2 unconstricted; telson of medium 

 length, deeply cleft; gills plaited on both sides. Like Anonyx but 

 gnathopod 1 chelate. Species: 1, Alaska, Httoral. 



Lepidepecreella Schellenberg 



Lepidepecreella Schellenberg, 1926a. 

 Paracyclocaris K. H. Barnard, 1930. 



Type-species: L. denophora Schellenberg, 1926a (monotypy). 



Epistome forming immense anterior keel on head, projecting in 

 front of upper lip but together coalesced; mouthpart field thus giving 

 conical appearance, mandible slender, molar bulge present, palp 

 attached proximal to molar; gnathopod 1 simple, styliform, article 7 

 apically (and marginally) setose; coxae 1 and 2 small, partially hidden 

 by coxa 3; outer ramus of uropod 3 shorter than peduncle, 1- or 

 2-articulate, inner ramus one third (rarely one half) as long as outer 

 or absent; telson short, entire. Species: 5, bipolar, httoral to bathyal. 



Lepidepecreoides K. H. Barnard 



Lepidepecreoides K. H. Barnard, 1931; 1932. 



Type-species: L. xenopus K. H. Barnard, 1931 (original desig- 

 nation); 1932. 



Head deeply concavotruncate from lateral view (Hippomedon) ; upper 

 lip lobately projecting in front of epistome; mandibular molar small, 

 palp attached level with molar; gnathopod 1 subchelate, article 5 

 longer than 6; article 7 of gnathopod 2 rather large, palm shghtly 

 chelate; coxa 5 as deep as coxa 4- (Hippomedon); telson of medium 

 length, deeply cleft. Species: 1, subantarctic, httoral. 



Lepidepecreopsis Stephensen 



Lepidepecreopsis Stephensen, 1925a. 



Type-species: L. hiloba Stephensen, 1925a (monotypy). See 

 Tmetonyx Stebbing and Tryphosella Bonnier. 



Epistome broadly rounded and dominating upper lip, latter shghtly 

 produced, both separated by deep incision; mandibular molar sub- 

 columnar, not triturative (Tryphosella), palp attached level with 

 molar or at proximal corner; coxa 1 shghtly tapering distally and 

 partially hidden by coxa 2; gnathopod 1 subchelate, articles 5 and 6 

 subequal in length or article 5 shorter than 6; telson of medium length, 

 deeply cleft. Species: 1, subarctic Atlantic, abyssal. 



285-135 O - 69 - 23 



