DESCRIPTIONS OF EARTHWORMS. 123 



NOTE VI. 

 DESCRIPTIONS OF EARTHWORMS. 



BY 



Dr. R. HORST. 



IV. 



Acanthodrilus Beddardi n. sp., 

 a remarkable earthworm from Liberia. 

 (Plate 6). 



Among the specimens of Ac. Buttikoferi from Liberia, 

 described in my foregoing paper ^) , I found a number of 

 smaller Acanthodrilidae , which at first I believed to be 

 young individuals of the same species. However examining 

 them more accurately, I recognized that they present some 

 characters, which hitherto are not observed in any other 

 species of the genus Acanthodrilus^ and I have no doubt, 

 that they belong to a new species. In honour of the Na- 

 turalist , who had done so much to increase our know- 

 ledge of the tropical Earthworms , I will name it Ac. 

 Beddardi. 



The length of the largest individual is about 160 m.m. 

 The cephalic lobe is rather long , compared to that of Ac. 

 Buttikoferi and the setae are more projecting than in this 

 species. The setae are arranged in four pairs , upon a white- 



1) This Journal, Vol. IX, p. 291. 



Notes from th.e Leyden JVIuseura , "Vol. X. 



