new Earthworms in the British Museum. 279 



anterior boundary is not well marked : however, we may 

 assume that the clitellum extends over about eleven segments 

 (17-27) ; these are not fused together. The longitudinal 

 margins of the clitellum are indicated for a great extent by the 

 tubercula pubertatis; they are otherwise but ill-defined. 



The tubercula pubertatis form a continuous red-brown 

 band on segments 21-27 = 7, and lie immediately external 

 to the ventral seta?. This band has at its outer side a 

 narrow white line, which can also be followed for about a 

 segment in front of the tubercula. 



The male pores are well visible as simple perforations on 

 the tubercula pubertatis, between segments 21 and 22. 



The oviducal openings, which in the majority of the other 

 species of Anteus have not been detected, are here repre- 

 sented by two minute pores lying in the intersegmental 

 groove 13—14 on a line witli the inner ventral seta?. 



Four pairs of spermathccal pores are visible between seg- 

 ments 5-6, 6-7, 7-8, 8-9 in a line with the dorsal seta?. 



The nephridiopores lie near the anterior boundary of 

 every segment from the third inclusive; they are, as a rule, 

 in a line with the outer couple of seta?, but it must be noted 

 that on the pra?clitellian somites they lie a little more dorsally. 



There are no dorsal pores. 



The septa in front of the gizzard are very thin and incom- 

 plete ; the first three septa behind it (6-7, 7-8, 8-9) are also 

 very thin, and as they are deeply infundibulated they overlap 

 one another and form a three-fold coating on the gizzard ; 

 further en, from septum 9-10 to the end of the generative 

 organs, the septa are, at least in their central part, somewhat 

 thicker. 



The pharyngeal bulb is but feebly developed and is 

 followed by the first oesophageal tract, which is thin-walled 

 and bent upon itself. The gizzard has an irregular spheroidal 

 shape and is morphologically confined to somite vi., as I 

 have shown to be the rule in the genus Anteus ; its diameter 

 reaches 9 millim. 



From the sides of the second oesophageal tract arise eight 

 pairs of calciferoua glands, occupying segments 7-14 inclu- 

 sive ; they are kidney-shaped bodies, and by means of the 

 peduncle attached to their hilum communicate with the 

 cavity of the oesophagus ; through this peduncle they 

 receive from the supraintestinal vessel a lateral branch, which 

 ramifies on their surface. The dorsal lobe of the calciferous 

 glands terminates in an ovate appendix constricted at the base. 



The true intestine begins at the 18th segment with a 



20* 



