498 LILIAN SHELDON. 



that the secretion globules are arranged in irregular masses in 

 the cells near their ends, which abut upon the lumen, instead 

 of having the regular arrangement described as occurring in 

 the latter. The structure of the walls of the testes in P. 

 novae zealandise differs from that P. Edwardsii, in that 

 in the latter Gaffron (2) states that there is no epithelial lining, 

 whereas those of the former are lined by a layer of fairly 

 deep columnar cells with large nuclei, their ends, which abut 

 upon the lumen, being rounded. There is a layer of muscles 

 external to the epithelium. 



In P. capensis the spermatophores are small rounded 

 bodies, enclosed in a thin, structureless case, and filled with 

 spermatozoa. 



In its lower part, where the vas deferens is filled with 

 spermatophores, the cells lining it are somewhat flat, are much 

 vacuolated, and stain very slightly. Just in front of the 

 region where the fully formed spermatophores lie the cells are 

 continued into small masses of unstained matter containing 

 very deeply staining globules lying in the lumen of the duct. 

 These masses probably form the cases of the spermatophores, 

 and are secreted by the cells with which they are continuous. 

 In front of this region the cells become columnar, the nuclei 

 being closely packed at the bases of the cells. The cell pro- 

 toplasm also stains very deeply. The spermatophores of P. 

 capensis, after they have been shed, are easily seen by 

 examining with a lens the dorsal surface of a female. They 

 appear as small, round, whitish bodies, lying on the skin of 

 the animal, and when teased are found to be filled with 

 spermatozoa. 



I have not had the good fortune to see a spermatophore of 

 P. novae zealandiee after it has been shed, and I only 

 assume that the horny case found in the vas deferens is a 

 spermatophore, because Professor Moseley (4) and Gaffron (2) 

 both describe it as such. But it is strange that it should differ 

 so largely from P. capensis in this respect. 



The ovarian funnel (receptaculum ovorum of Kennel(3) ), 

 described by Gaffron (2) in P. Edwardsii as lying on the ovi- 



