488 



MR. J. GRAHAM KEER O:^ 



[Nov. 19, 



specimeD sectioned, the last five (possibly six?) showed spermatozoa, 

 aud these collecting-tubes were distinguished from those further 

 forwards by their larger calibre ('17 mm. as against -09 mm.). 



Text-fig. 50. 



Transverse section of the genito-uriuary apparatus of Lepidosiren. 



Portion of a transverse section of the genito-urinary complex of an adult, 

 but not breeding, male Lepidosiren, showing a particularly short vas efferens 

 through the whole of its extent. 

 Gl. Glomerulus. 

 K.T. Kidney-tubule. 

 M.C. Malpighian capsule. 



P. Projections from wall of testis into its lumen. 

 Tj. Vesicular region of testis. 

 V.E. Vas efferens. 



