472 



KEY TO SPECIES OF GENUS LYCAEA 



1. In males head with rounded bump anteriorly. Endopodite of 

 uropods II fused with basipodite 3. L. nasuta Claus. 



— In males head gently rounded anteriorly, bumplike prominence 

 absent. Endopodite of uropods II not fused with basipodite 2. 



2. Tip of posterior distal angle of 5th segment of pereopods I and II not 

 extended into cusp 3. 



— Tip of posterior distal angle of 5th segment of pereopods I and 11 

 extended into cusp 4. 



3. Posterior distal angle of 5th segment of pereopods I reaching base of 

 claw with closed subchela, in pereopods II reaching beyond middle 

 of 6th segment. Second segment of pereopods V more than twice 

 longer than wide. Second segment of pereopods VI and VII oval, 

 with uniformly bulging margins 6. L. lilia Volkov, sp. n. 



— Posterior distal angle of 5th segment of pereopods I and II slightly 

 falling short of middle of 6th segment. Second segment of pere- 

 opods V, 1 .5 times longer than wide. Anterior margin of 2nd segment 

 of pereopods VI and VII barely bulged or straight, posterior margin 

 highly bulged, particularly in proximal half 



5. L. pachypoda (Claus). 



4. Posterior and distal margins of 5th segment of pereopods I and II 

 form an angle of 120°. Claw equal to or longer than half length-of. 

 6th segment 4. L. serrata Claus. 



— Posterior and distal margins of 5th segment of pereopods I and II 

 almost form a right angle. Claw not longer than half length of 6th 

 segment 5. 



5. Posterior margin of 5th segment of pereopods I denticulate. Claws of 

 pereopods III and IV long. Distal segments of pereopods VII together 

 approximately 1/3 length of 2nd segment. Basipodite of uropods I 3.5 

 to 4 times as long as rami 1 . L. pulex Marion. 



— Posterior margin of 5th segment of pereopods I smooth. Claws 

 of pereopods III and IV short. Distal segments of pereopods VII 

 together almost 2/3 length of 2nd segment. Basipodite of uropods I 

 only twice as long as rami 2. L. pauli Stebb. 



1. Lycaea pulex Marion, 1874 (Fig. 205) 



Marion, 1874: 13; Stebbing, 1888: 1567; Chevreux, 1900: 156; 

 Spandl, 1924: 31; Chevreux and Page, 1925: 429; Stephensen, 1925a: 

 161.— robusta Claus, 1879b: 40; 1887: 63.—similis Claus, 1879b: 39; 

 1887: 63. — longicomuta Giles, 1887: 220 (Amphypronoe). — vincentii 

 Stebbing, 1888: 1563.— ^ova/W Chevreux, 1900: 157.— gracZ/w Spandl, 

 1924: 30. — bajensis Shoemaker, 1925: 46. — bovallioides Stephensen, 

 1925a: 169. 



