022 



S. Kemp : Notes on Crustacea Decapoda. 



125 



merus bears a strong spine close behind the distal end of the lower 

 margin and is from 5^5 to 6 times as long as wide and from 1*25 

 to i'4 times ' as long as the carpus. The carpus is conical, from 

 28 to 3*2 times as long as its distal breadth, most slender in 

 females. From the distal margin on the inner side there project two 

 small acute processes or teeth, the upper the most conspicuous; 

 the strong subterminal spine found in Palaemonella tenuipes is com- 



Text-FIG. 2. — Palaemonella vestigia/is, sp. now 



a. Antennule. c. Telson. 



b. Last two segments of third peraeopod. 



plctely absent (cf. text-figs, ya and jb). Behind the distal edge, 

 especially on the upper side, the carpus exhibits a transverse 

 furrow, while the distal edge itself is somewhat dilated. The chela 

 is from 23 to 2*65 times as long as the carpus and is proportion- 

 ately longest in males. The palm is a little swollen, wider than 

 the distal end of the carpus, 3 times as long as its greatest breadth 

 and from 1*3 to 1*5 times as long as the fingers. The fingers have 

 inturned tips, their cutting edges are unarmed distally, but in the 

 proximal half each bears two teeth, those on the dactylus in advance 

 of those on the fixed finger. 



The last three pairs of peraeopods are slender; the fifth reach 

 a little beyond the end of the antennal scale. In the third pair 



1 About equal to the carpus in a female from Mahe. 



