MACRURA. 91 



Upogebia, Leach, 1813. 



Upogebia intermedia (de Man). 



Gebiopsis intermedia, de Man, ' Journ. Linn. Soc.,' vol. 22 (Zool.), 1888. 



Localities : Haul 6, south of Adam's Bridge (Station LIV.), 2 males and 1 female ; 

 Muttuvaratu Paar (Station VI.), 1 male. 



This species is characterised by the possession of a large number of denticulations 

 on the cephalic portion of the cai*apace, and also by the anterior thoracic legs being 

 richly clothed with long and very fine setse. 



The anterior portion of the carapace covers the small eyes and projects almost to the 

 end of the antennular peduncle. The peduncle of the antennule is 3-jointed, the 3rd 

 being slightly longer than the 1st and two and a half times as long as the 2nd. The 

 3rd joint is more slender than the other two. There are 2 flagella one and a half times 

 as long as the peduncle. The inner flagellum is slightly longer and less robust than the 

 outer. The antennal peduncle is slightly longer than that of the antennule and is also 

 3-jointed. The 1st and 2nd joints are equal and slightly longer than the 3rd joint, 

 which is also less robust than the other two. The 1st and 2nd joints are richly 

 clothed with long fine seta;. The eyes are small and project nearly to the end of the 

 2nd antennular peduncle. The middle of the carpos of the 1st legs reaches to the 

 end of the rostrum. The appendages agree with de Man's description. The 

 abdomen is large, being twice as long as the carapace and proportionally broad. 

 The segments are subequal, the 2nd and 6th being slightly longer than the others. 

 The telson is broader than long and equal in length to the uropods. 



General distribution : Mergui, Ceylon. 



N 2 



