380 NOTES ON AUSTRALIAN EARTHWORMS, 



Alimentary canal : the buccal mass and pharynx occupy about 

 five segments ; the portions of the alimentary canal in vi vii and 

 VIII straight and thin- walled ; a gizzard I have been unable to 

 make out ; in each segment from ix to xiii the alimentary canal is 

 globularly dilated and very vascular, less marked in xiii, (and 

 slightly also in xiv and xv) probably representing the calciferous 

 glands though separate pouches on each side are not pinched ofi' ; 

 inxvi it suddenly increases in calibre to form the sacculated 

 large intestine which continues to the end of the body. 



Genitalia : two pairs of small white racemose testes in segments 



XI and XII, attached to the posterior face of the mesenteries 



between x and xi, and xi and xii, on each side of the alimentaiy 



canal (1); the two vasa deferentia commencing with two pairs of 



ciliated funnels in x and xi immediately in front of the posterior 



mesenteries, and joining the short genital ducts a little way from 



the prostates ; the prostates ai"e two small narrow bodies in xvii, 



transversely placed, the short duct of each coming off from the inner 



(lower) extremity, and joined about half the distance from the gland 



by the posterior portion of the vas deferens ; just in front of the 



proximal extremity of the genital duct is a pair of small delicate 



sacs lying in contact with one another and with the inner portion 



of the prostate ; when separated they are seen to be attached just 



in front of the genital duct ; each of tliem contains two slightly 



curved penial setae, one about '85 mm. long, the free end faintly 



striate but not spinose or with the ti[) bifid, the other developing ; 



the ovaries have the usual situation in xiii ; the oviducts commence 



opposite to them in the same segment and open to the exterior in 



the next one, and present nothing unusual ; the spermathecse I 



have so far been unable to discover. 



(1) Following the example of Perrier I speak of these bodies and of 

 similar ones in the other species described in this paper as testes. Their 

 real nature I intend to investigate specially subsequently. If they are 

 vesiculae seminales both their situation (attached to the mesenteries) and 

 their relation to the ciliated rosettes are remarkable, as each pair of the 

 bodies is always in a different segment to the pair of rosettes receiving 

 their products . 



