476 OLIGOCHAETA 



papillae may very possibly not be a character of specific value ; the setae appear to 

 be arranged much as in the last species, as will be seen by a comparison of what 

 Rosa has said with regard to the two worms. 



T. laevis. T. foveatus. 



Le setole dorsali 3-4 sono sempre piil Le due setole nelle paia esterne (3-4) 



distant! fra loro che le ventrali 1-2, sono distanto fra di loro circa il doppio 

 lo spazio fra le ventrali e le dorsali nella che nelle interne (1-2): lo spazio fra le 

 parte anteriore del corpo e un po' mag- due paia di un lato (a-3) e maggiore di 

 giore di quello fra le due setole d' ogni quello fra le setole esterne (3-4), minore 

 paio per cui queste sono geminate ma non pero dello spazio mediano ventrale (1-1). 

 strettamente posteriormente pero le paia Tale disposizione h costante per tutta la 

 ventrali e dorsali si fiavvicinano, per cui lunghezza del corpo. 

 lo spazio (2-3) che sta fra le seta le 

 ventrali e le dorsali e maggiore di quella 

 fra le ventrali (1-2) e minore di quello fra 

 le dorsali (3-4)- 



The dorsal pores commence between segments xi/xii. Concerning the external 

 characters, only enough details are given to show that the present species agrees with 

 the remaining species of the genus. Thickened septa exist between segments iv/vi, 

 viii/xi; the penial setae appear to differ from those of the other species in which 

 they are known by being ornamented at the extremity with a number of minute 

 points arranged indefinitely; some of the setae are, however, smooth^; they are 

 none of them swollen, but are curved ; the diverticula of the spermathecae (two, as 

 in other species) are simple without divisions ; but then the specimen was immature, 

 and the spermathecae are described as being slightly developed. 



Genus Dichogaster, Beddard. 



Definitioit. — Setae paired. Dorsal pores present. Clitellum XIII-XX (XXIII). 

 Male pores on XVII. Two gizzards ; three pairs of calciferous glands. 

 Ifephridia difiFuse. Spermiducal glands tubular. 



This genus was created by myself for the reception of an earthworm from the 

 island of Fiji, differing from any other Cryptodrilid in the fact that, behind the 



1 Cf. T. masoni, above. 



