507 



Fig. 220. Oxycephalus latirostris Claus, females (after Pillai, 1966). 



The size of adult specimens rarely exceeds 20 mm, average 

 12-15 mm. 



The body has a thin integument. The head is bulged, dorsally slightly 

 so, ventrally bulged most in the proximal part. The rostrum constitutes 

 half the total length of the head, is basally broad, and uniformly narrows 

 towards the tip; the tip is less attenuated than in the two preceding 

 species and terminally blunt. Dimorphism is not observed in females of 

 this species. 



The 2nd segment of pereopods I is narrow, slightly S-shaped, espe- 

 cially along the anterior margin, its width about 1/4 its length, and its 

 length equal to the rest of the leg; the width of the 5th segment is dis- 

 tally more than twice its width at the base and equal to the length of its 

 anterior margin; the process of the posterior margin falls slightly short of 

 the base of the claw and its tip is stretched and curved; the inner margin 

 of the chela is finely serrate with strong submarginal setae; the claw is 

 about 1/3 the 6th segment in length. The 2nd segment of pereopods II 

 is almost straight and slightly shorter than the rest of the leg; the 5th 

 segment is appreciably longer than its width and its width in the distal 

 part 1 .5 times than at the base; ornamentation of the chela is similar to 

 pereopods I; the posterior margin of the 5th segment is armed with setae 

 and the tip of the process highly stretched, reaching beyond the base of 



