192 



Neomeris group. 



a l Dactylus of the third legs biunguiculate. 

 ó 1 Merus of the third legs armed with one or more spinules on the 

 posterior margin. Upper angle of basicerite spinulose. 

 c x Dactylus of the third legs with the ventral hook half as long or 

 almost half as long as this joint. 

 d z Small chela more than 3-times as long as high. 

 e 1 Ventral or principal hook of the dactyli of third legs making an 

 oblique angle with the lower border; telson with the anterior 

 pair of spinules usually situated behind the middle. 

 ƒ-, Telson with the anterior pair of spinules situated far backward, 

 at or near the posterior third ; stylocerite reaching to the 



middle or just beyond the middle of median antennular article. neomeris (de Man) 

 /„ Telson with the anterior pair of spinules situated but a little 

 behind the middle; stylocerite but a little longer than i st 



antennular article Gravieri Cout. 



e % Ventral or principal hook of the dactyli of third legs perpendicular 

 to the lower border. Telson with the anterior pair of spinules 



situated before the middle Iphinoe' de Man 



d 2 Small chela less than 3-times as long as high, palm one and 

 a half as long as high. 

 g l Telson with the anterior pair of spinules situated just in front 



of the middle. Dactyli of third legs as in Syn. Gravieri . jedanensis de Man 

 g„ Telson with the anterior pair of spinules situated far backward, 

 just at the posterior third, nearly as in Syn. neomeris; 



dactyli of third legs also as in this species misccllaneus de Man 



c % Dactylus of third legs with the ventral hook measuring about one- 



fourth the length of that joint. 



h^ Rostrum not reaching beyond basal antennular article, less 



than four times as long as wide at its base ; telson more 



than 2, 5 -times as long as the posterior margin is wide. 



i l Rostrum usually 3-times (2,75 — 3,25) as long as wide at its 



base ; telson with the anterior pair of spinules situated just 



before the middle. Dactylus of third legs 3-times as long 



as thick at its base streptodactylus Cout. 



e'jj Rostrum 2,2-times as long as wide at its base; telson with 

 the anterior pair of spinules situated a little behind the 

 middle and nearer to the lateral margins than in Syn. 

 streptodactyhes, the spinules 0,07 — 0,08 mm. long, much 

 smaller than in this species. Dactylus of third legs 2,51- 



times as long as thick at its base streptodactyloides de Man 



60 



