cases contaiiis no iiucUm. Tlicro are no cilia in tlio pcriphery of 

 these perforations. In tlie left ovary I only observed tlirec of 

 tliose openings, probably only one of them penetrating the whole 

 tliickness of the wall ; in tlie right ovary they are more numeroiis 

 and united into groups, six of such groups probably being pre- 

 sent. As however I only have a series of transverse scctions at 

 my disposition and as moreover the ovaries are so much coiled, 

 it is in some cases difficult to ascertain the boundaries between 

 the groups and therefore their nnmber is not quite certain. 



In most of these perforations are lying spermatozoa, united 

 into spermatophores, which project from the cavity of the ovary. 

 I think that this phenomenon is the same as has been seen 

 long ago bij Moseley ') in P. capensis and described by him 

 as follows: „In all the ovaries examined, spermatozoa were found 

 attached in tangled groups and masses amongst the ovisacs in the 

 exterior of the ovary, and apparently in some cases the long 

 filaments of the spermatozoa penetrated the ovisacs with one of 

 their ends, whilst the other was in active motion". Sedgwick ^) 

 also mentions the same thing: „They, i. e. the ovaries, contain 

 spermatozoa, some of which project through the ovarian walls 

 into the body cavity". My preparations, however, as described 

 before, show clearly the presence of apparently preformed openings ; 

 at least the spermatozoa do not merely penetrate between the 

 cells of the wall, as could be concluded from the descriptions of 

 Moseley and Sedgwick. 



My preparations give no unswer to the question, how the sper- 

 matozoa come into the ovaries. There are no spermatozoa in the 

 oviducts or in tlie iiteri. That they sliould penetrate the skin, 

 as suggested by Whitman ^), seems little probable, in conside- 

 ration of the rather tliick cuticula. It is true that the fact, that 



1) Oa the Sti'ucturc and Developiuent of Peripatus capensis. Phil. Trans. 187 4, 

 p. 768 and PI. LXXIV, fig. 1. 



3) The Development of Peripatus capensis. Part I. Qaart. Jrn. of Mier. Sc, Vol. 

 25, 1885, p 453. 



3) Spermatophores as a Means of hypodermic Impregnation. Jrn. of Morphology, 

 Vol. 4, 1891, p. 361. 



