'924 



MR. F. E. BEDDARB OX THE ANATOMY 



[Dec. 15, 



§ The Posterior Lymph- Hearts o/Xenopus. 



The posterior lympli-bearts of this genus are not, so far as I 

 am aware, known. As I have dissected them in two individuals 

 of this African Frog, and as they present certain remarkable 

 differences from those of other Frogs, T think it worth while to 

 append to my account of these structures in Hemisns some notes 

 upon the lymph-hearts of Xenopus. When the animal is dissected, 

 a mass of yellow fat is seen to lie upon the thighs and to spread 



Text-%. 187. 



IJv. 



Hinder part of body of one side of Xenopus Icevis. 



IJi. Mass of fat in which lie lymph-hearts — distinguished as light circles. 

 s. Sense-organs of lateral line. 



upwards for some way on to the back. The mass of fat upon the 

 proximal I'egion of each thigh is, as is to be seen in the annexed 

 figures (text-figs. 187, Z.A., & 188, l.h.), of roughly circular out- 

 line. It is seen on excavation by the scalpel to be of some 

 depth, and 1 regard the space in which it lies as representing the 

 saccus iliacus of the lymph-system of Hemisus and other Frogs. 

 There is, however, no empty sac here. The fat entirely fills the 



