ROCINELA DANMONIENSIS. 293 



the three following segments are much larger and wider, 

 with the sides ending in acute recurved processes ; the 

 fifth segment is as long as the preceding, but abbreviated 

 at each side, and the sixth is obtusely triangular. 



AVe have received it from Polperro, where it was taken 

 by Mr. Loughrin, and there are specimens in the British 

 Museum from Ireland that have the caudal termination 

 more pointed than in our figure. 



