PROF. NITSCHE ON STAGS* ANTLERS. 1 85 



8. On the so-called uterus ^L\scuLINUs of the Rabbit. 



By Prof. Ramsay Wright. 



The object of the present communication is to correct a current 

 misapprehension of the morphology of the organ in question, which 

 is frequently referred to in text-books and by teachers in illustration 

 of the occasional abnormal development of the caudal ends of the 

 Miillerian ducts in the male human subject. (Cf e.g. Rolleston and 

 Jackson, " Forms of Animal Life," p. 30 et seq.) 



Sharing this misapprehension I was surprised to learn from 

 a series through an embryo rabbit of 5 ctm. that the so-called 

 titenis masculinus or "oesiciila prostatica is in reality an unpaired 

 seminal vesicle developed from a fusion of the caudal ends of the 

 Wolffian ducts. An examination of the literature showed that 

 Kolliker (Entwickelungsgeschichte, p. 981) followed by Langenba- 

 cher (Arch. mik. Anat. XX, p. 92) had already made this statement. 

 Krause, who quotes these authors in the second edition of his 

 " Anatomie des Kaninchens," p. 234, still retains his former descrip- 

 tion of the "vesicula prostatica" (ist ed. p. 170), which is written 

 on the assumption that the organ is the morphological equivalent 

 of the vagina of the female, and of the utriculus masculinus of man. 



A detailed description of the development of this region in the 

 rabbit is reserved for another occasion. 



9. UEBER die HiRSCHGEWEIHE MIT MEHR ALS ZWEI StANGEN, 

 UND DIE HOERNER WIEDERKAEUER IM ALLGEMEINEN. 



Von Prof. Dr H. Nitsche. 



Prof. Nitsche of the Forst-Akademie Tharandt, Saxony, gave 

 the following short resume of his investigations about abnormal 

 stags' antlers, their growth, and their difference from the horns of 

 the Bovidae. A full account will be found in his forthcoming 

 work entitled Studien nber Hirschc. 



Der Vortragende berichtet iiber die Ergebnisse einer Reihe 

 von Untersuchungen, die unter dem Titel : Studien iiber HirscJic, 

 4", Heft I mit 12 Tafeln, unter der Fresse sind und Anfang October 

 bei Wilhelm Engelmann in Leipzig erscheinen werden. 



Er erlautert, dass die iiberzahligen Stangen, die bei verschie- 

 denen Hirscharten nicht gerade selten sind und stets dem Stirn- 

 beine entspringen, zunachst auf 3 verschiedene Weisen entstehen 

 konnen, entweder, 



(i) von der Flache des Stirnbeines, oder 



(2) auf einem Aste des sich aju Ende theilenden, abnornien 

 Rosenstockes, oder 



(3) auf der Seitenfldche eines normalen Rosenstockes. In 



