AN ATTEMPT TO CLASSIFY EAETHWOEMS. 223 



XIV, and includes from five to ten of the following somites. 

 " Copulatory "" papillae are usually present in the neigh- 

 bourhood of the spermiducal pores. The '^ prostates" are 

 tubular and convoluted, or are lobed structures. 



Genus 1. TvPHiEus, Beddard, 1883. 



Setae in couples, all on the ventral surface. 



Clitellum occupies Somites xiv to xvii. 



The male pores are on Somite xvii, in line with the inner 

 couple of setae ; sacs with penial setae present. The "^ pro- 

 states" are convoluted tubes. 



Sperm-sacs. — A single pair in Somite x, which may occupy 

 more than one somite. 



One pair of testes and ciliated rosettes in Somite x, en- 

 closed in a median portion of the sperm-sac. 



[Prostomium^ nearly as broad as the peristomium, and not 

 dovetailed into it. 



A single pair of spermathecae in Somite viii ; the aperture 

 is placed in the anterior part of this somite. 



Dorsal pores present. 



A single pair of calciferous glands in Somite xii. The giz- 

 zard occupies Somites vi, vii ; peculiar intestinal glands farther 

 back.] 



Species 1. T. orientalis, F. E. B., 1884; India. 

 2. T. gamraii, F. E. B., 1888; India. 



See Beddard, ^ Ann. Mag. Nat. Hist./ 5th ser., vol. xii, 1883 ; 

 and ' Quart. Journ. Micr. Sci.,' vol. xxix, 1888. 



Genus 2. Megascolides, McCoy, 1878 (= Notoscolex, 

 Fletcher, 1886). 

 Setee in couples, all on the ventral surface. 

 Clitellum occupies Somites xiii to xxi (or xxiii), and 

 though feebly developed, extends across the ventral surface. 



The male pores are on Somite xviii, on slight papillae. 

 No penial setae. 



' The characters placed in square brackets are less easily observed, or are 

 more subject to specific variation. 



