ME. &. LEWIS ON JAPAN" BRENTHID^, 



295 



Gerda catjdata, n. sp. 



Body elongate, cylindrically-undulate, seven times as long as 

 broad, transversely striate, highly contractile, spherically-ovate 

 vs^hen contracted, terminating posteriorly in an imbricated longi- 

 tudinally striated tail-like appendage ; ciliary disk convex ; peri- 

 stome-border tbick ; contractile vesicle spherical, anteriorly placed ; 

 endoplast spherical and conspicuous. — Sah. Pond-vs^ater. 



1% 



WA 



Gerda caudata in different stages and positions. A. Retracted state. B. Ex- 

 tended, but with cilia withdrawn. C. Showing gradual aversion of cilia. D. 

 Fully expanded. 



On Japan Brenthidse, and Notes of their Habits. 



By GrEOEGE Lewis, F.L.S. 



[Eead June 7, 1883.] 



(Plate XII.) 



The new Brenthidse made known in this paper are those I 



acquired in Japan during the summers of 1880 and 1881, and 



comprise five species. The Japanese archipelago lies too far 



north of the equator to be rich in species of the family, yet still, 



in the southern island of Kiushiu and in the warm peninsula 



which borders on the Kii Channel, a fair number of beetles of a 



truly tropical type exist ; and to this class the Brenthidse noted 



