66 
Canide.—The muscular fibre of animal life extends to the sto- 
machic end of the gullet. In the silvery fox none of this fibre could 
indeed be detected on the terminal third of an inch of the gullet, 
which should be examined again in another individual. 
Viverride.—In the African civet cat the striated muscular fasci- 
cles do not cover the last portion of the gullet. 
Felide.—The stomachic end of the gullet is not clothed with the 
muscular fibre of animal life; but in the caracal a few irregular 
fibres were observed on the cardiac end of the gullet, perhaps be- 
longing to the muscular fibre of animal life, although they were quite 
destitute either of transverse or longitudinal streaks. 
Mustelide.—In the otter the muscular fibre of animal life covers 
the gullet, excepting about half an inch of its stomachic extremity ; 
in three species of Mustela this fibre invests the whole gullet. 
Phocide.—In the seal no muscular fibre of animal life was found 
on the gullet within an inch of the stomach. 
Urside.—In the genus Nasua, and in the sloth-bear and Ame- 
rican bear, the gullet is throughout clothed with the muscular fibre 
of animal life, which in the latter animals is very thick and red on 
the last portion of the gullet, and extends on the cardiac extremity 
of the stomach. 
CETACEA. 
In a porpoise no muscular fibre of animal life could be found on 
four inches of the stomachic end of the gullet, although this fibre was 
abundant on the rest of the thoracic portion of the gullet. 
RuMINANTIA. 
The voluntary muscular fibre runs along the entire length of the 
gullet, and sometimes to a short distance on the cardiac extremity 
of the stomach. The striated muscular fibre on the last portion 
of the gullet is often mixed with a much greater proportion of the 
muscular fibre of organic life. 
RopENTIA. 
The whole length of the gullet is clothed with the muscular 
fibre of animal life. 
MarsuPIALiA. 
In the kangaroo and the squirrel-flying opossum no muscular 
fibre of animal life was found on the stomachic end of the gullet. 
Birps, Reprints, AND FIsHEs. 
I have carefully searched for the striated muscular fascicles in 
the gullet of the birds and reptiles mentioned in the table, but in 
vain. In Birds the fibre of the superficial coat of the gullet is often 
disposed transversely, in which respect it may be seen with the 
naked eye to differ from the cesophageal muscular sheath of mam- 
mals. Ina few fishes the striated muscular fascicles invested the 
entire length of the gullet, and-extended some distance on the sto- 
mach in others, as in the pike and bull-head. In the barbel some of 
