196 



BIR. V. E. BEDDARD ON THE 



[Feb. 19, 



the variations in the human subject with the conditions which 

 are normal in other mammals, and it is possible that many 

 examples have been recorded of this particular abnormality in 

 man. I refer only to one instance, which I cull from the list of 

 literature given by Hochstetter in his memoir upon the develop- 

 ment of the veins in mammals *. 



(3) Insectivora. 



My notes upon this group are very few, but not without 

 interest. Milne-Edwards has observed f that the Mole possesses 

 both azjgos veins, and that the left debouches into the light 



Azygos veins of JSrinacetis cdgirun. Lotteriiig as in text-fig. 62. 



auricle precisely as in certain Ungulates. This fact is not referred 

 to by Owen, who however states + that " the left vena azygos 

 communicates with the left precaval in the Hedgehog and many 



* Gruber, " Ueber eiiien Fall von Einraiindnng der V. liemiaz}fgos in das Atrium 

 dextrum cordis beim Menschen," Arcb. f. Anat. u. Phys. 1864, p. 729. 

 t Anat. et Phys. Comp. iii. 1868, p. 595. 

 :3; Comp. Anat". & PLys. Vertebrates, vol. iii. 1868, p. 553. 



