1901.] 



LEPIDOSIRE"S T AND PROTOPTERTTS. 



485 



Text-fig. 49. 



M.D.O. 



\W\&: 



A. View of the genitourinary apparatus 



of a male Lepidosiren (adult, but not 

 breeding), as seen in a dissection from 

 the ventral aspect. The greater part 

 of the cloaca! caecum has been cut 

 away. Some of the vasa efferentia of 

 the right side are seen entering the 

 kidney. 



B. Semi-diagrammatic figure to show the 



relations of the posterior portions of 

 the genito-urinary complex. 



C. Dorsal wall of cloacal caecum. 

 CI. Dorsal wall of cloaca. 

 ~K V Kidney (mesonephros). 

 K„. Posterior portion of kidney. 

 M.D.O. Persistent funnel of the Miil- 

 lerian duct. 

 T r Formative region of testis. 

 \T.,. Vesicular region of testis (in A 

 concealed in connective tissue). 

 U.G.P. Urogenital papilla. 

 V.K. Vaa efferens. 

 W.D. Wolffian duct. 



U.G.P. 



The genito-urinary apparatus of the male /.</• 



