Choanae large; vomerine teeth in two elevated patches which lie between, and reach the posterior level, of choanae, the patches closer to each other than to choanae; tongue rather small, subcircular, not or but very indistinctly notched behind, not at all free behind; opening to vocal sacs behind level of tongue, the openings a short slit directed backwards. (Vocal sacs not evident externally in type or paratypes.) Skin of dorsal surfaces generally smooth (under magnification surface minutely corrugated and wrinkled); ventral surface of abdomen, the thighs, and lower part of lateral surface of body strongly granulate, the granules unequal in size and elevation; breast, chin, and under side of arm with sparse granules or tubercles. Anal opening ventral, covered by a small, free, triangular flap; a small thickened fold, slightly free, on each side of anus partly covered by triangular flap. [Illustration: _Measurements_ (in mm.).--Snout to vent, 58; leg, 86; head length, 20; head width, 18.6.] Arms rather short, upper arm slender, forearm much thickened; a small axillary web present; disks on three outer fingers distinctly larger than tympanum, of first finger equal to or somewhat smaller than tympanum; outer fingers, between one-third and one-half webbed; on inner fingers webbing less than one-third; first finger more or less opposed to other three, its base widened, and the upper surface covered by a large patch of minute dark, horn-colored nuptial asperities, that extend to near the terminal disk; subarticular tubercles strongly elevated with numerous supernumerary tubercles on palm; a somewhat enlarged elevated palmar tubercle; under surface of forearm with a row of distinct tubercles; other smaller scattered granules present. Toes more than four-fifths webbed, the membrane reaching the base of the terminal disks, on one side at least, of all toes save fourth; subarticular tubercles strongly elevated, with numerous supernumerary tubercles on sole; a large elevated inner metatarsal tubercle; a small outer tubercle; a continuous, well-defined, tarsal fold extending entire length of tarsus. Tibiotarsal articulation reaches nostril when leg is brought forward. _Color and marking._--General color of type (preserved in formalin, then transferred to alcohol) dull grayish purple, darker anteriorly and somewhat lighter and more mottled posteriorly; color very much lighter on sides with a few cream, dark-edged spots in groin and on sides of abdomen; front and back surfaces of thigh and shank with some darker and lighter flecking that is continued more or less on the foot. When submerged in water, very dim dark spots or bars visible on limbs; ventral surface dirty brownish flesh, without markings. _Variation._--The series consists of five adult male specimens. It is presumed that the female is considerably larger, and may lack the nasal proboscis which I suspect is a secondary sexual character.