258 W. B. BENHAM. 



funnels are further back^ as I have ascertained by longitudinal 

 sections, in addition to dissection. 



2. Male pores in front of Somite xviii, anterior to the 

 clitellum. 



Family IX. Lumbricidse, Claus and Rosa ( = L. anteclitel- 

 liens, E. P. ^ Lumbricidse + Criodrilidse, "Vejdovsky). 



The eight setse are either in couples, the individual setae 

 being very close together ; or they may gradually separate so 

 as to give eight equidistant setse per somite. 



The clitellum, incomplete ventrally, usually commences 

 behind Somite xx (in one case on Somite xv), and occupies 

 from six to nine, sometimes more, somites. 



The spermiducal pores are on Somite xv, or on an 

 anterior somite. 



There are three or four pairs of sperm-sacs in Somites ix 



to XII. 



Testes and ciliated rosettes in Somites x, xi. 



The oviducal pores are on Somite xiv. 



Spermathecse may be absent, or vrhen present are nearly 

 spherical sacs without diverticula. 



Nephri-dio pores in a line with the inner couple of setse. 



Each nephridium is a greatly coiled tube, terminating in a 

 large muscular duct without a caecum. 



The gizzard when present lies behind Somite x. 



There are no pepto-nephridia. 



Genus 29. Lumbricus, Eisen ( = partly Lumbricus, 

 Limnseus, &c.). 



Prostomium dovetailed completely into the peristomium. 



Setce always in couples, the individual setse of which are 

 close together. 



Clitellum occupies six or seven somites, commencing some- 

 where between Somites xxvi and xxxii. 



Spermiducal pores on Somite xv. 



Sperm-sacs three pairs, in Somites ix, xi, xii; connected 



