522 



1. Leptocotis tenuirostris (Claus, 1871) (Fig. 226) 



Claus, 1871: 155 (Oxycephalus); Bovallius, 1890: 113; Stephensen, 

 1925a: 191; Page, 1960: 37; Pillai, 1966: ISl .—spinifera Streets, 1877: 

 131.— lindstroemi Bo\al\ius, 1887a: 38; IS90: 1 6 (Dorycephalus). Colosi, 

 1918: 218 {Dorycephalus).—ambobus Stebbing, 1888: 1594; Colosi, 

 1918: 218 (Dorycephalus); Spandl, 1927: 203 (Dorycephalus). — similis 

 Spandl, 1927: 204. 



Body length 9-10 mm; sometimes males are larger, upto 12,5 mm. 



The head in females has a weakly developed neck, in males the basal 

 constriction of the head is sharply defined on the dorsal side. Weak sex- 

 ual dimorphism has been observed in the structure of the head: in males 

 it is higher and the rostrum thinner and pointed; in females the head 

 merges smoothly into the rostrum. The basal segment of the flagellum 

 of antennae I in males has an extended outer distal angle; the other seg- 

 ments (small and narrow) originate from the middle of the distal margin 

 of this segment. 



The 2nd segment of pereopods I is bulged on both sides and equal 

 in length to the rest of the leg; the 5th segment is distally broadened, 



422 



Fig. 226. Leptocotis tenuirostris (Claus), male. 



