OCR Text |
Show 440 MR. G. A. BOULENGER ON THE [May 8, 18. PHRYNOBATRACHUS AURITUS, sp. n. (Plate XXVIII. fig. 2.) Tongue with a free conical papilla in the middle. Habit slender. Head moderate, as long as broad ; snout pointed, projecting beyond the mouth, with angular canthus and nearly vertical loreal region ; nostril equally distant from the eye and the end of the snout; interorbital space narrower than the upper eyelid; tympanum distinct, measuring nearly half the diameter of the eye. First finger as long as second ; toes two-thirds webbed; tips of fingers and toes dilated into small disks ; subarticular tubercles small; two small metatarsal tubercles ; a very small tubercle not far from the latter, on the inner side of the tarsus. The tibio-tarsal articulation reaches the tip of the snout. Skin smooth, or with very small warts above; a narrow glandular fold on each side of the back from the eyes to the sacral region, the two folds converging on the scapular region ; a similar fold from the eye to the shoulder. Greyish or reddish brown above, darker on the middle of the back, with or without a filiform light vertebral line, which is continued along the middle of the upper surface of the thigh and the inner side of the leg; glandular folds edged with blackish; a few round black spots may be present on the pelvic region; limbs with rather indistinct darker cross-bars ; hinder side of thighs blackish brown, edged with whitish above near the vent ; inner side of legs also blackish brown ; lower parts white, with small brownish spots on the throat and breast in the female ; the throat blackish in the male. Male with an internal subgular vocal sac. From snout to vent 37 millim. Three specimens from the Benito Biver (67. L. Bates). The distinct tympanum distinguishes this species from P.plicatus Gthr., to which it bears some resemblance. 19. PHRYNOBATRACHUS LATIROSTRIS, sp. n. (Plate XXVIII. fig. 3.) Tongue with a free conical papilla in the middle. Habit moderately slender. Head moderate, as long as broad ; snout short, rounded ; canthus rostralis distinct; loreal region concave ; nostril equally distant from the eye and the end of the snout; interorbital space as broad as the upper eyelid ; tympanum distinct, measuring three-fifths the diameter of the eye. Fingers and toes moderate, the tips dilated into small disks ; first finger not extending as far as second • toes half-webbed ; a small, oval, inner metatarsal tubercle. The tibio-tarsal articulation reaches between the eye and the end of the snout. Skin smooth ; a slight curved fold behind the eye, converging towards its fellow on the scapular region. Dark grey-brown above ; a dark triangular spot between the eyes ; glandular folds dark-edged ; upper lip lighter, with dark vertical bars ; lower lip dark brown in the male, with a series of small white spots ; limbs with dark cross-bars ; anal region blackish, edged with whitish above ; throat grey in the male, white, spotted with brown, in the female; belly and lower surface of limbs white, breast spotted with brown, Male with an internal subgular vocal sac. |