270 FRANK E. BEDDARD. 



this same genus ^ from the shores of Victoria Nyanza ; these 

 have been named S. Emini and S. Stuhlmanni; both these 

 species are founded upon fragments which, however, included 

 the penial process. The small size of these processes in S. 

 Emini I should look upon as a sign of immaturity. So far as 

 can be gathered from the necessarily incomplete account given 

 by Michaelsen, these species agree with that described in the 

 present paper in their essential structures. Michaelsen con- 

 siders that their systematic position is a matter of doubt; the 

 presence of penial processes, as he remarks, suggest the 

 Teleudrilini, a view which is of course not supported by the 

 absence of prostates and spermatothecse. My own observations 

 recorded here serve, I think, to fix with something like certainty 

 the systematic position of the worm. 



It will be obvious from the above account of the anatomy of 

 Siphonogasterthat it is amember of the family Geoscolicidse 

 of Rosa. I myself and others thought that the genus would 

 prove to be, as are the majority of tropical African earthworms, 

 aEudrilid; it is abundantly clear that this surmise was in- 

 correct. On p. 257 of the present paper I have attempted to 

 revise Benham's classification of these intra-clitellian worms ; 

 since writing that passage a paper by R,osa^ has come into my 

 hands, which is practically in accord with what was there said. 

 I may point out that the structure ofSiphonogaster further 

 confirms the justice of separating the Old from the New World 

 genera. I would particularly direct attention to the presence 

 of egg-sacs in Siphonogaster ; these sacs do not, so far as 

 we know at present, occur in the American forms ; they have 

 been found in a good many Ethiopian and Indian genera. 



^ " Beschreibung der von Herrn Dr. Fr. Stuhlmaim am Victoria Nyanza 

 gesammelten Terricolen," ' Jahrb. Hamb. wiss. Anst,,' Bd. ix. 



2 "Kynotus Michaelseuii, n. sp.," 'Boll. Mus. Comp. Zool.,' vol. vii. 

 No. 119. 



