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Show 850 MR. G. A. BOULENGER ON A NEW FROG. [Nov. 17, similis, sed plaga gutturali caerulescenti-nigra primo visu distm-guenda. The single skin that I have as yet seen of this species is obviously of Brazilian manufacture. It is strange that the species has so long remained undiscovered. 4. Description of a new Frog of the Genus Megalophrys. By G. A. BOULENGER, F.Z.S. [Eeceived November 3, 1885.] (Plate LV.) MEGALOPHRYS LONGIPES, sp. n. (Plate LV.) Tongue pyriform, indistinctly nicked posteriorly. Vomerine teeth in two small groups just behind the line of the posterior borders of the choanae. Head broader than long, much depressed; snout very short, obliquely truncate, concave above and on the sides, with strong can thus rostralis ; nostril equally distant from the eye and the middle of the rostral extremity ; interorbital space concave, a little broader than the upper eyelid; tympanum distinct, oval, its distance from the eye exceeds its greatest diameter. Fore limb long and slender ; first finger extending beyond second. Hind limb very long, the extremity of the femur reaching the shoulder and the tibio-tarsal articulation far beyond the end of the snout; toes slender, with a slight rudiment of web, swollen at the tips; no subarticular nor metatarsal tubercles. Skin smooth above, with small warts on the flanks, and two pairs of delicate oblique folds, converging posteriorly, on the scapular region; a fold from the eye to the shoulder, passing above the tympanum; upper eyelid with a small horn-like tubercle on its outer edge ; lower surfaces smooth. Olive-brown above, sides of head speckled with blackish, and with oblique yellowish vertical bars; digits edged with yellowish and with yellowish cross bars ; hinder side of thighs, upper half reddish brown, lower blackish brown, the two colours sharply separated ; lower surfaces pale reddish brown, largely marbled and spotted with dark brown. From snout to vent 60 millim. A single specimen, apparently a female, from the mountains of Perak, Straits of Malacca, at a height of 3300 feet; presented to the Natural History Museum by L. Wray, Esq., Curator of the Perak Museum. This species must be very rare, as the specimen described is the only one obtained by M r . Wray during a residence of about three years on the hills. EXPLANATION OF PLATE LV. a. Upper view of Megalophrys longipes, size of life, b. Lateral view of head. c. Lower view of bead and pectoral region. d. Open mouth. |
