OCR Text |
Show 186 ON N E W REPTILES AND BATRACHIANS FROM BORNEO. [Mar. 6, space as broad as the upper eyelid ; tympanum distinct, one half or two-fifths the diameter of the eye. Fingers free; toes half-webbed ; disks of fingers a little smaller than the tympanum; subarticular tubercles moderate ; a small inner metatarsal tubercle. The tibio-tarsal articulation reaches the tip of the snout. Upper parts smooth or with small flat warts ; belly and lower surface of thighs granulate. Grey-brown above, with dark brown symmetrical markings, a cross-band between the eyes being constant; usually a )( or )-(-shaped marking on the anterior part of the body; a dark streak on the canthus rostralis; limbs with dark cross-bars; lower parts white, with or without brown spots on the throat. From snout to vent 40 millim. I have examined specimens from Mts. Penrissen, Dulit, and Kina Bulu, in Borneo; also from Great Natuna. The species is closely allied to the Javan 1. aurifasciatus, to which the first Bornean specimens were referred by the late Prof. Peters (Ann. Mus. Genova, iii. 1872, p. 44). I. aurifasciatus has a smaller, less distinct tympanum, shorter digits, and a brighter coloration, being marked with reddish, dark brown, green, and bright yellow. CALOPHRYNUS HETEROCHIRUS. (Plate XVII. fig. 4.) Tongue large, pyriform, covering the floor of the mouth. Snout very short, slightly prominent, truncate ; canthus rostralis strong ; loreal region nearly vertical ; interorbital space broader than the upper eyelid; tympanum feebly distinct, measuring about two-thirds the diameter of the eye. First and second fingers very short, not half the length of the third, fourth shorter still, almost reduced to a knob; toes short, one-third webbed, fifth shorter than third; tips of fingers and toes bluntly pointed ; sub-articular tubercles feebly prominent; two feebly prominent metatarsal tubercles. The tibio-tarsal articulation reaches the eye. Skin smooth. Uniform purplish brown above, yellowish white beneath and on the sides of the head ; a few large round yellowish-white spots on the lumbar region and on the back of the thighs. A female, full of large-sized ripe ova, measures only 27 millim. from snout to vent. Borneo (no precise locality). Type in the Sarawak Museum. EXPLANATION OF PLATES XIV.-XVII. PLATE XIV. Fig. 1. Lygosoma shelfordi, p. 182. 2. Distira saravaccnsis, p. 184. Upper and side views of head and neck, side view of body, and side view of tail. PLATE XV. Lepturophis borneensis, p. 183. Upper, lower, and side views of head and anterior part of body. |