ZooL.— Vol. II.] RISEN— OLIGOCHyETA. 243 



posterior to the clitellum are covered with a thick coelomic 

 mantle, which seems more uneven and more rugose than 

 that of the species. 



SetcB. — The ornamentation of the setae is exceedingly faint. 

 The tip of the setae at first glance appears to be perfectly 

 smooth, and it is only with a good homogeneous immersion 

 lens that the faintest of marginal impressions — too faint to 

 be illustrated in a drawing without being exaggerated — can 

 be perceived. 



The various species of Pontodrilus are closely related 

 and a careful reconsideration of all the forms would prove 

 of great interest. 



LIMNODRILIDyE. 



Telmatodrilus Eisen. 



A second species of this genus is not uncommon in Cali- 

 fornia, and it is not improbable that the two species were at 

 first confounded. The following definition will distinguish 

 the two species thus far known : 



Telmatodrilus Vejdovskyi Eisen. 



Definitio7i. — Body stiff, sluggish, slightly tapering. Spermathecse opening 

 in front of and between the ventral fascicles of setae in X. The setje are 

 indistinctly uncinate. 



Habitat. — Sierra Nevada Mountains, in the medium dry 

 soil of marshes and meadows, or in rotten logs in wet places. 



This definition is drawn from my first description, the 

 type-specimens not being accessible. Beddard, in his 

 Monograph of Oligochgeta, page 263, gives a definition of 

 T. Vejdovskyi, differing in some respects from that originally 

 given by the author. His description is probably partly 

 based on specimens which I sent him in 1892. Beddard 

 states that the spermathecal pores open between the dorsal 

 and ventral bundles of setae, making it evident that he had 



