1908.1 



OF THE BATRACHIAN GENUS HEMISUS. 



923 



which is attached to it, and from such septa generally, by its 

 yellowish colour, due of course to the fact that its w^alls are 

 muscular and not formed of connective tissue. The outer wall 

 of the heart is quite smooth and has a bronzy appearance, due to 

 its muscular walls ; the internal surface is sculptured into raised 



Text-fiff. 186. 



Lj"mph-heart (posterior) oi Semisus (/uttatum and associated structures. 



l.h. Lymph-heart cut open to show its interior, n. Vein referred to in the text. 

 O. Ostium referred to in the text. 



muscle-masses here and there Avith, of course, dejoressions between. 

 The fibres in the cuter Avail of the heart run largely, as I have 

 convinced myself by a microscopic examination, across its long 

 diameter. 



