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Show 1900.] AND BATRACHIANS FROM BORNEO. 185 AMBLYCEPHALUS NUCHALIS. (Plate XVII. figs. 1, 16.) Rostral as deep as broad ; internasals narrow, band-like, hardly one-third the length of the prefrontals ; frontal once and two-thirds as long as broad, twice as long as its distance from the end of the snout, once and a half as long as the parietals, which are followed by a pair of nuchals ; prefrontal entering the eye; loreal as long as deep, not entering the eye; two preoculars, two postoculars, and a series of three narrow suboculars ; three superposed anterior temporals ; eight upper labials, eighth very long; first lower labial in contact with its fellow behind the symphysial; three pairs of large chin-shields, anterior a little broader than long. Body strongly compressed ; scales in 15 rows, dorsals very feebly keeled, the keel double on the enlarged vertebral series. Ventrals 195 ; anal entire ; subcaudals 105 ( d )• Pale buff, with narrow brown transverse lines and scattered dark brown dots ; a large black blotch on the nape, sending forth on each side a linear branch to the eye ; a black vertical line below the eye, another on the temple. Total length 490 millim.; tail 125. Matang. Type in the Sarawak Museum. RHACOPHORUS SHELFORDI. (Plate XVII. fig. 2.) Vomerine teeth in two long, nearly straight transverse series in the middle between the moderately large choane. Snout pointed, as long as the diameter of the orbit; nostril equally distant from the orbit and the end of the snout: canthus rostralis strong; loreal region slightly concave; interorbital space broader than the upper eyelid; tympanum distinct, three-fifths the diameter of the eye. Fingers webbed to the disks, which are considerably smaller than the tympanum; toes webbed to the disks, which are smaller than those of the fingers; subarticular and inner metatarsal tubercles very small; no tarsal fold. The tibio-tarsal articulation reaches between the eye and the nostril. Skin smooth above, o-ranulate on the belly. Purplish brown above ; a dark band across the snout, another between the eyes, and three across the back ; an X-shaped dark marking on the scapular region ; loreal and temporal regions blackish ; a fine yellow" line on each side of the head from the tip of the snout along the canthus rostralis and superciliary edge to above the tympanum ; sides of body yellowish, with a blackish network; limbs with dark cross-bands; sides of tbio-hs blackish, closely speckled with white; web between toes marbled with blackish ; lower parts colourless. Male with internal vocal sacs. From snout 45 millim. Penrissen Mt. Type in the British Museum. This species is closely allied to R. fasciatus Blgr. IXALUS PETERSI. (Plate XVII. fig. 3.) Snout rounded or obtusely pointed, as long as the diameter of the orbit ; canthus rostralis distinct; loreal region concave; nostril a little nearer the end of the snout than the eye; interorbital |
