BY J. .7. FLETCHER, B.A., B.Sc. 051 



and tapers gradually and slightly towards its end. Internally it 

 is much folded both longitudinally and transrersely, but there 

 are no marked features to be described. The papillae on which 

 the ostia uterorum are situated, are in close contact laterally, 

 and in tw^o cases are very large, and being similar to what has 

 been described above in H. dorsalis, are mainly responsible for 

 the increase in breadth in this region. In the other two specimens 

 the papillie are much smaller. 



Jfacropus major. — Of this species twenty-six specimens have 

 been examined. Three of them obtained by myself were from 

 animals each of which had a young one in the pouch. Two of 

 the young ones measured 2 in., the third 9^ in. Of five others, 

 kindly given me by Mr. Morley, four Avere from females with 

 young in the pouches, and the fifth was from a female suckling a 

 haired young one. The remaining eighteen were obtained by my 

 collector, who at my request carefully distinguished the organs 

 from animals which had had young from those of virgin animals. 

 In not one single instance was there any direct communication 

 between the median portion of the vagina and the urogenital 

 canal, and in all cases I have been able most satisfactorily to 

 make out the csecal condition of the cul-de-sac. 



From four specimens taken at random, sections were cut, while 

 each of the others was carefully dissected and subsequently re- 

 examined. The former may be considered first. 



In each case the organs were cut across well above the bottom 

 of the cul-de-sac, and then from the distal portion sections were 

 cut, beginning at the proximal end. On account of the larger 

 size of the sections and because the material was not specially 

 hardened, the sections are not so thin as in the case of the virgin 

 specimens described later on. Supposing the sections to be 

 placed with their ventral surface away from, and the dorsal surface 

 towards, the observer, then what one sees is this : Xear the top 

 of the section is the aperture of the urethra ; below this is that 



