DESCHIPTIONS 01' EARTHWORMS. 21 



NOTE V. 

 DESCRIPTIONS OP EARTHWORMS 



BT 



Dr. R. HORST. 



IX. 



ON TWO NEW BENHAMIA-SPECIES FROM LIBERIA. 



(Plate 1). 

 Benhamia liheriensis n. sp. 



Last year the Leyden Maseum received from Liberia some 

 large ^eyiAamz'a-specimens , agreeing in size with Benhamia 

 Biittikoferi ^) from the same country; however after a 

 careful examination they turned out to belong to a new 

 species. 



The largest specimen measures 350 mm. in length ; its 

 average diameter is about 10 mm., and it tapers only 

 slightly within a few segments of the posterior end. There 

 are about 250 segments, each divided by a ridge into two 

 annuli; the setae are situated upon this ridge. The colo- 

 ration of the worm is of a dark violet-brown , but the 

 clitellum and the ventral side of the segments in front of 

 it have a yellowish hue. 



The clitellum extends over segments (XIII) XIV — 

 XX ; it is complete except on an oblong, rectangular, 

 ventral area in the middle of segments XVII — XIX. The 

 openings of the prostata-glands and the male pores, situated 



1) Notes Leyden Museum, vol. IX, 1887, p. 291, pi. 5. 



Notes from the I^eyden IMuseum , Vol- XVII. 



