530 MR. D. W. DEVANESEN ON THE 



3. The Sibb-cutaneous and other Fat-bodies*. 



The occuiTence of sub-dermal fat is by no means peculiar to 

 this toad ; several species among the Anura are known to possess 

 it, though its function in most of them still remains to be eluci- 

 dated (Boulenger, C. L., 3). Accumulations of the fat in question 

 are found in G. sy stoma chiefly in two situations : (1) in the 

 neck-region above and below, in connection with the lymphatic 

 maxillary septum ; this lobular mass of fat may be termed " the 

 cervical fat-body (text-figs. 3 and 13) ; and (2) in the inguinal 

 region on the dorsal surface in relation with the lymphatic 

 inguinal septum, which is very high and falls into folds ; in the 



Text-fia'ure 3. 



S.F. 



The skin on the back cut open and the sub-cutaneous fat-bodies exposed in a male 

 C.P., cervical fat-bodj^; S.F., supra-inguinal fat-body; F, fatty deposits on 

 the head and neck ; 1. 1., conspicuous inscriptiones tendince of the ohliquus 

 muscles, seen only among males. 



same region, but to a less extent, fat is developed in connection 

 with the iliac sac and the posterior lymph-heart ; this extensive 

 area of fat, in its totality, may be called " the supra-inguinal fat- 

 body" (text-fig. 3). Besides these two conspicuous sub-dermal 

 fat-bodies, one occasionally finds scanty deposits of the same 

 substance under the skin in the parietal and occipital regions, 

 in a small median area dorsally behind the head and on the 

 under side of each arm near the brachial vein. I assume that 

 these, too, are developed in relation to the lymphatic system. 

 One also finds in this toad certain internal deposits of fat 



* Young specimens show neither an adequate development of these fat-bodies nor 

 are they present in all the places mentioned. 



