OF FROGS OF THE GEXUS BREVICFrS. 



409 



inscriptio tendinea *, behiuil the origin of the pectoralis ahdomi- 

 nalis. This muscle sirose a little in tVont oi" the fiist and only- 

 visible inscriptio tendinea. 



The other abdominal muscles, q. s. o mo-abdominal, hyo-ahdoiiil- 

 nal, and ohliqims internus, are quite as I have described them in 

 m_y former paper, except that the hyo-ahdominal seems to be 

 rather larger. This muscle passes under the latei-al process of the 

 sternum, i. e. dorsally to it, and would thus appear to belong to 

 the obliquus internus sheet, and not, as I formei'ly suggested, to 

 the obliquus externus. 



Text-fiii-. 131. 



Obi. int. 



Urcvlceps (jibhosus, from the dorsal surface, part!}' dissected. 



Cu. Cutaneous muscle. L.D. Latissimus dorsi. OhJ.int. Obliquus internus. 

 Sc. Scapula, .r. Slight bulge of dorsal musculature referred to in text. 



The obliquus eMernus is rather difi'erent from that of the species 

 of my foi'mer description. The fascia dorsalis is qviite obvious, 

 and the origin of the muscle is thus some way removed from the 



* Loc. cit. p. 23, text-fig. 5 



