On new Batrachians from Borneo. 169 Batrachians. 1. liana Delalandii, D. & B. 2. Bufo regularisj Reuss. 3. Bufo Blanfbrdii, Blgr. EXPLANATION OF PLATE VII. Fig. 1. Pridurus Philli2)sii. Fiy. 1 a. Ditto : side view of head, X . Fig. 2. Hulodactylus africanus. Fig. 3. Ayum<( I'hiUipsii. XXV. — Descriptions of Four new Batrachians discovered hy Mr. Charles Hose in Borneo *. By G. A. Boulenger, Rhacophorus Hosii. Vomerine teeth in two oblique series between the rather large choanas, commencing from their inner front edge. Snout truncate, as long as the diameter of the orbit ; nostril close to the tip of the snout ; canthus rostralis angular ; loreal region concave ; interorbital space as broad as the upper eyelid; tympanum distinct, half the diameter of the eye. Fingers with a slight rudiment of web ; toes nearly entirely webbed, the penultimate phalanx of the fourth toe free; disks smaller than the tympanum ; subarticular tubercles moderate ; a small inner metatarsal tubercle. The knee reaches the shoulder, the tibio-tarsal articulation far beyond the tip of the snout. Skin finely granulate above, coarsely on the belly. Dark grey-brown above, lips with darker vertical bars ; one or two small black spots above the axil ; limbs with dark cross-bands ; anal region black ; hinder side of thigiis dark brown j whitish beneath, throat marbled with brown, belly dotted witli brown. From snout to vent 48 millim. A single female specimen from the Pata River, North Sarawak. Rhacophorus fasciatus. Vomerine teeth in two long oblique series between the moderately large choanae, commencing from their inner front * The specimens described are now in the British 31iisciim.