212 



ME. E. E. BEDDARD OM EARTHWORMS 



[June 4, 



The spermidmal glands are confined each to its segment (the 

 xviith and xixth). These glands have a rather short muscular 

 duct which is not half the diameter of the glandular tuhe. The 

 latter is only bent upon itself once or twice ; there is no complicated 

 coiling such as occurs in many species. The anterior spermiducal 

 glands are rather the smaller. The penial setcc are about 1*25 mm. 

 in length. Each sac contains two of these seta 1 equally developed. 

 The two setae are of precisely the same form, there being no 

 differentiation of the penial seta? such as characterizes many 

 species. Each seta is gracefully curved in an elongated 8. It 



Text-fig. 18. 



Extremity of penial seta of Benhnmia gambiana (highly magnified). 



diminishes in breadth at the free end, but not suddenly or markedly. 

 Eor a little distance before the end it is covered with fine spine- 

 lets. The actual end of the seta seems to be excavated on one 

 surface, as is shown in the accompanying drawing (text-fig. 18) ; 

 the outlines of this terminal excavation are plainly to be seen. 

 The tip of the seta is somewhat expanded in a way reminiscent of 

 the " cap '" which covers the penial seta of Benhamia horsti 1 . This 

 region has a granular appearance. 



1 " T7eber eine neue Gattung und vier neuen Arten der Unterfamilie Ben- 

 hamini," Mitth. Naturb. Museum, Hamburg, xv. p. 11, fig. 3. 



