VESICULA PIIOSTATIC'A. 



14-17 



disposal from the stores of the Physiological Fig. 875. 



Institute of this place. 



rolitantia. Among the Bats I have found 

 a Weberian organ hitherto only in Vcspcrtillo 

 wurimts. Here it is a small corpuscle, scarcely 

 one line in size, between the ejaculatory ducts. 

 It is covered by the prostate, and opens at 

 the usual place by a small and scarcely visible 

 aperture. In Plccotns anritns I have sought 

 after it in vain. So also in Galeopilhecus 

 variegatus, where the points of opening of the 

 two seminal ducts are placed close together 

 upon a small and elongated verumontanum. 



Inscctivora. The Erinaceus Europccns 

 Tulpa Enrop&a*, Sorex araucus, and Macro- 

 scc/tdes Rozcli were examined : only in the 

 last is a Weberian organ present. It is a 

 roundish flask, which is proportionately of a 

 very considerable size, being fully one line 

 long, and quite as broad at the end. It opens, 

 by means of a short constricted neck, into 

 the uro-genital canal between the two seminal 

 ducts. The prostate, which consists, as in 

 the Sorex, of two compound gland-tubes, lies 

 in front of the utriculus, and close to it, but 

 without covering it. The thickened lower 

 ends of the seminal ducts receive it between 

 them, and are united to it by areolar tissue. 



Fcne. In the dog and the cat the Weberian 

 organ forms, as Weber has shown, a long 

 small bladder of some* lines in size, which is, T 

 for the most part, placed before the prostate Le >' dl g* has described is of unusual form, 

 in a fold of peritoneum stretching between and much more considerable development. 

 the two ejaculatory ducts. There is no open- lies between the urinar bladder and 



Weberian Organ of the Hyaena Striata (reduced to 



half the natural size.) 



a, Weberian organ ; b, b, vasa deferentia ; c, c, pro- 

 state ; d, d, Cowper's glands. * 



the two seminal ducts, and consists of a 



"''VlTd^cription^fWebert certainly holds body about six lines in length and propor- 



good in many instances, yet not in 'all. I P onal breadth, the upper free end of which 



have examined numerous dogs and cats, and " dl * WI1 ?f. n S ht a " d left mto a lon S d 



have very frequently found, instead of a vesi- thlr ? thread lying on the seminal duct. The 



cular structure, a simple solid cylindrical cord, cav . ltle f and their openings could not be ex- 



which I have regarded as an obliterated ru- ammed ; but without doubt both were pre- 



diment of the organ. In many individuals sent The Weberian organ is very similar in 



even this could not be detected. 1 also found th ?. ^ des "?**' Il 1S a ver y considerable 



the Weberian organ as a solid cord in the cylinder, whic Jl measures^ about ten Lnes^and 

 fox and leopard. rrK " -*:-'>.i /.^. - ~~ 



The striped hyama, on s f o e 



the contrary, possesses an elongated flask- em . is f the vasa deferentia, being very firmly 



shaped Weberian corpuscle; but it, together um 1 ted ? th 



with the ends of the seminal ducts, is hidden e " d I s . olded lnto U horns > nl * tbe "g ht 

 between the two kidnev-shaped halves of the 



hinder surface of the glandular 

 asa deferentia, being very firmly 

 thn by areolar tissue. The upper 



. ded lnto U horns > . nl * tb } e "g ht 

 wlic ' 1 1S P ermeab !e to a short distance, 



- . 



large prostate-t The latter are only fused The left is, from its root onwards, a solid 

 posteriorly; in the larger anterior half they thm thread which 1S closely attached to the 

 are united by areolar tissue into a common 

 mass. There is no opening into the uro- 

 genital canal, and I have found none in any 

 of the beasts of prey examined. 



The Weberian organ of the offer, which 



* The commencement of the nro-genital canal 

 in the Eimacefa and Talpa, forms in an anomalous 

 manner a spacious and defined cavity. Into this 

 cavity the urethra opens, as in the female mammalia, 

 by a narrow slit-shaped aperture. This was de- 

 scribed by me some time ago (zur Anatomic, &c., 

 SS. 102. 105.) at which period I erroneously ex- 

 ined the cavity as a male vagina. 

 Zusatze, &c. Tab. VII. 



The length of the prostate is fully one and 

 alf inches : its breadth is yet larger. Cowper's 

 glands are also of considerable size, two inches long. 

 They have a longly clavate form, and a very thick 

 covering of striped muscular fibres. 



Weberian Organ of the Badger. 



a, Weberian organ ; b, b, vasa deferentia ; c, thread- 

 shaped horns of the Weberian organ. 



* Zeitschrift fiir Wissentschaftliche. Zoolog. von 

 Siebold u. Kdlliker, Baud U. S. 49. 



