360 U.S. NATIONAL MUSEUM BULLETIN 271 



Pseudambasia Stephensen 



Pseudambasia Stephensen, 1927. 



Type-species: P. bipartita Stephensen, 1927 (monotypy). 



Article 2 of antenna 1 elongate, two thirds as long as article 1 ; 

 epistome obtusely produced in front of upper lip; [mandible and 

 maxilla 1 undescribed] ; gnathopod 1 subchelate, article 6 slightly 

 longer than 5, palm excavate (combining character); outer ramus of 

 uropod 3 uniarticulate, rami equal to each other and peduncle; telson 

 of medium length, entire; urosomal segments apparently coalesced. 

 Species: 1, Auckland Islands, littoral. 



Pseudoanonyx Kudrjaschov 



Pseudoanonyx Kudrjaschov, 1965. 



Type-species: P. caecus Kudrjaschov, 1965 (original designation)- 

 Apparently upper lip projecting sUghtly in front of epistome [from 

 analogy to Anonyx]; mandibular molar large, unridged (Onisimus), 

 setulose, palp apparently attached level with molar; gnathopod 1 

 subchelate, articles 5 and 6 stout, subequal in length, dactyl very 

 small and like dactyl oj gnathopod 2; inner ramus of uropod 2 simple; 

 telson of medium length, deeply cleft; gills plaited; eyes absent; 

 pereopods 1-2 without distal locking spines on article 6 at base oj dactyl; 

 article 4 oj maxillipedal palp very short, tumid {Anonyx). Species: 

 1, Okhotsk Sea, littoral. 



Pseudokoroga Schellenberg 



Pseudokoroga Schellenberg, 1931. 



Type-species: P. barnardi ScheDenberg, 1931 (monotypy). 



Upper lip and epistome produced forward together; mandibular 

 molar small, ridged, palp attached proximal to molar; maxillae 

 slender, article 4 oj maxillipedal palp short {Koroga); gnathopod 1 

 subchelate, article 6 enlarged, much longer than article 5; inner 

 ramus of uropod 2 constricted; telson of medium length, entire. 

 Species: 2, subantarctic, Baja California, littoral. 



Pseudorchomene Schellenberg 



Pseudorchomene Schellenberg, 1926a. 



Type-species: Orchomenopsis coatsi Chilton, 1912 (monotypy). 



Epistome broadly lobate in front of upper lip; mandibular molar 

 small, poorly ridged, palp attached proximal to molar; gnathopod 1 

 poorly subchelate, articles 5 and 6 equal, article 3 as long as 5 or 6, 



