310 Description of Menobranchus punctatus. 
vent. 'The dark color is produced by a multitude of dark 
minute dots (of a chocolate color as seen through a lens) 
closely set on a flesh-colored ground ; numerous larger irregu- 
larly shaped orange-colored dots, formed by the agglomeration 
of several smaller ones, distributed at intervals over the whole 
upper surface from snout to tip of tail, and also on the sides 
of the body and lateral surfaces of the tail, diminishing in 
` number on sides and under surface of the body, and disap- 
pearing towards middle of under side. At yet more distant 
intervals over the dark portions of the skin are large ill- 
defined dots of a darker color than the surrounding surface. 
The muciparous glands appear tolerably distinct, of a pale 
color, and the skin, in drying, leaves depressions where they 
exist. A dark line runs from the snout through the eye, 
dividing the iris, which is white, into an upper and lower seg- 
ment. The neck is marked by a cutaneous fold, curvilinear, 
with the convexity forwards, running round to the branchiæ 
on each side. The upper and under surfaces of the limbs 
agree in color and markings with the corresponding surfaces 
of the body. 
Dicestive svsrEw. Lips thick, fleshy, movable, the 
upper most so in consequence of mobility of maxilla; the 
lower enclosed by the upper when the mouth is shut, the 
folding over most marked at the commissure, which ex- 
tends nearly half way to the cervical fold. Nostrils on the 
anterior edge of the upper lip, at the angles of the somewhat 
truncate snout. Teeth all conic, white, with rufous tips ; 
upper ones in two series, maxillary and palatine ; maxillary 
about seven on each side, palatine about ten, the series eX- 
tending to the commissure of the lips; lower teeth in a single 
series, about the same in number and extent as the palatine 
row of upper teeth. Tongue white, thick, fleshy, free at tip 
and sides, not pedicellate, not extensible. Msophagus large, 
a nearly continuous with that of the stomach. Sto- 
mach when moderately inflated was 0.28 of an inch in breadth 
