DESCRIPTIONS OF EARTHWORMS. 27 



its distal end, which is somewhat enlarged; highly magni- 

 fied this enlarged extremity proves to have the shape of 

 a concave chisel, resembling some Eunice-bristles. 



The rest of its internal structure does not present any 

 special points of interest and agrees mainly with that of 

 Benh. Schlegelii ^). The intestinal coeca are rather large and 

 show numerous foldings ; each of them is separately connected 

 with the intestinal canal. 



June 1895. 



EXPLANATION 



OF 



Plate 1. 



Fig. 1. Benhamia liheriensis Horst. Ventral view of the 

 anterior region of the worm , to illustrate the fea- 

 ture of the clitellar area. X 2 diam. sp. p. sperma- 

 thecal pores ; (ƒ male pore. 



Fig. 2. A penial seta. X 36 diam. ; 2 a distal extremity of 

 the same , highly magnified. 



Fig. 3. Distal end of a copulatory seta. X 90 diam. 



Fig. 4. A spermatheca , with the fascicle of copulatory 

 setae and the glandular body. X 7 diam. 



Fig. 5. A transverse section through the excretory duct 

 of a spermatheca, to show the diverticula of the 

 duct, filled with spermatozoa, x 65 diam. 



Fig. 6. Benhamia Beddardi Horst. A longitudinal section 

 through the spermatheca, to show the glandular 

 tubes of the excretory duct and the vesicles, 

 containing the spermatozoa. 



Fig. 7. ^enAamia AStemjo/Zw Horst. A spermatheca. X 15 diam. 



Fig. 8. A penial seta. X 20 diam. ; 8 a the distal end of 

 the same, highly magnified. 



1) Notes Leyden Museum, vol. IX, 1887, p. 252, pi. 4. 



Notes from the Leyden IMuseiam , "Vol. XVII. 



