66 CARCINOLOGICAL STUDIES. 



Length of the cephalotliorax 17 mm. 



Breadth of the front , measured between the eyes 18 » 



In the smallest specimen , a male , the measurements are 

 as follows : 

 Distance between the external orbital angles . .11 mm. 



Length of the cephalothorax §74^^ 



Breadth of the front, measured between the eyes G^/j » 



1 4. Er iphia scahricula Dana. 

 Eriphia scahricula, Dana, 1. c. Tome I, p. 247, pi. XIV, fig. 5. 



A female and a younger male from unknown locality. 



I have before me a young male of Eriphia laevimana , 

 var. Smithii^ collected in the Javan Sea, which I have de- 

 scribed some time ago (Archiv f. Naturgeschichte, Bd. 53, 

 1888, p. 327), so that I am enabled to point out the slight 

 differences existing between this form and Eriphia sca- 

 hricula. The cephalothorax of Dana's species is slightly 

 more enlarged. The post-frontal lobes 2 F are 

 not separated in this species from the regions 

 1 M by a transverse groove, but form one single 

 region with the latter and the regions 2 M; in Eriphia 

 laevimana the post-frontal lobes 2 F are on the contrary 

 separated from the areolae 1 M by distinct smooth transverse 

 grooves. These areolae 2 F and 1 M are more finely 

 granulated in scahricula than in the other form. The median 

 incision of the front is slightly wider, and the anterior 

 margins of the two arcuate frontal lobes are not or only 

 very finely granulated , but very distinctly so in Eriphia 

 laevimana. The granulation on the outer surface of the 

 hands is somewhat closer and finer in Eriphia scahricula , 

 and the upper surface of the cephalothorax and the hands 

 are always hairy in the species described by Dana. 



The largest specimen , the female , has the following 

 dimensions : 



Notes from tlae Leyden M!useum , Vol. XII. 



