AMPHIBIANS AND REPTILES. 45 
of head; tail 1% in rest of body. Body stout, heavy, cylindrical, 
and with little swollen appearance. Surface all rounded, smooth 
and convex. Trunk rather cylindrical, depressed. —Costal 
grooves 12, counting inguinal. Pelvic grooves obsolete. Grooves 
on tail obsolete over most of its length. Tail rather long, deep, 
compressed, somewhat ellipsoid in cross-section, surface smooth, 
and without keel. Middle of back with a faint longitudinal 
groove, and extending from occiput to tail above. Lateral groove 
on tail obsolete. Head obtuse, broad, depressed both above and 
below, arid edges above only largely convex. Profile rather ob- 
tuse in front. Snout with length a trifle more than twice in 
width, apparently about even with closed mandible, and broadly 
and evenly convex when viewed above. Eye a little elongate or 
ellipsoid, of moderate size, elevated, and placed near first 2 in 
length of head. Eyelids fleshy and well developed. Pupil cir- 
cular. Mouth broad, and when viewed from below similarly 
convex to snout as seen from above. Lips rather firm, little de- 
veloped. Vertical constriction behind angle of mouth obsolete, 
and next, in front of shoulder, but little developed, though hori- 
zontal connecting groove more distinct than either. A series 
of minute teeth along edge of each jaw, numerous and even. 
Palatine teeth in apparently a long narrow single transverse 
band presenting a brush-like median appearance made up of a 
pair of clusters, each of which is barely a fourth longer than 
either distal cluster or series. Tongue large, disciform, rounded, 
not emarginate behind, fleshy, largely filling mouth, and surface 
finely plicate. Interior nares just before outer portion of each 
end of palatine teeth. Exterior nostrils near front edge of snout, 
inconspicuous, rather small, and space between a little less than 
bony interorbital space. Internasal space a little convex. Inter- 
orbital space barely convex, nearly flat or level. Skin perfectly 
smooth, under a lens showing minute simple pores everywhere, 
though obsolete and few on lower surface. These pits or pores 
apparently connected with glands. No conspicuous large super- 
orbital and lateral frontal pores apparent. Fore limb inserted 
at first fifth of body, and reaches about 5¢ to hind limb. Digits 
