72 



centre of the tube. As will be seen in Fig. 2 the first lateral sacs in 

 the ovarian part are interesting, as here we find not only eggs but also 

 ripe spermatozoa lying between them, thus showing very clearly both 

 kinds of cells arise from the same lot of indefferent germcells. 



Sometimes we also meet witli well developed egg cells in the first 

 testicular sac, as will be seen at the right hand side on the Figure. 



This condition of things was found in all the male animals I saw. 

 I examined in all 35 individuals of which 20 were males and 15 fema- 

 les. The males are well characterized by their secondary sexual 

 characters, such as the absence of the first abdominal appendages etc., 

 so that we can clearly see that this is a new case of male animals 

 producing in part the female elements, just as in the case of 

 Orchestici as found and described by Nebeski (Beiträge zur Kennt- 

 nis der Amphipoden der Adria, in »Arbeiten aus dem Zoologischen In- 

 stitute der Universität Wien, 1880). 



As in that case, it is also certain that the eggs do not pass out of 

 the generative organ, since we find no other passage than vasa defe- 

 rentia through the narrow testicular tube. I think that the eggs 

 atrophy at certain season of the year. 



The only interesting point is that here the same germinal band 

 passes uninterruptedly through the whole length of generative organ, 

 producing constantly in the anterior half spermatozoa, and in the 

 posterior half, eggs, showing thus very clearly that eggs and sperma- 

 tozoa are only modifications of one and the same primitive cells as 

 propounded by Leuckart so long ago (R. Leuckart: Artik. Zeu- 

 gung in Wagner Handb. d. Physiologic p. 807) and repeatedly confir- 

 med by many able investigators. 



Tokyo, Japan, May 1890. 



4. Die Aufrechterhaltung des Genus „Sapphir". 



Von Dr. Lazar Car. 



eingeg. 24. Januar 1890. 



Im ersten Moment mußte ich wohl die Möglichkeit zugeben und 

 Herrn Dr. Dahl Glauben schenken, daß ich, da ich das Werk »Keport 

 on the Scientific Results of the Vogage of H. M. S. Challenger. 

 Zool. Vol. VIII. « mit der Arbeit von Brady nicht besaß, ein Genus 

 aufgestellt habe, welches schon von Brady im Jahre 1883 unter dem 

 Namen Goniopsyllus aufgestellt worden war. Aus eigener Überzeugung 

 konnte ich dies jedoch so lange nicht bestätigen, bis ich nicht die Be- 

 schreibung und die Abbildungen von Brady zu Gesicht bekommen 

 hatte. 



