OCR Text |
Show 636 MR. G. A. BOULENGER ON [Dec. 18, black, elegantly reticulated with grey. From snout to vent 17 millim. Closely allied to D. tinctorius. Several specimens, probably young. 4. DENDROBATES FANTASTICUS, sp. n. (Plate LVII. fig. 3.) Closely allied to B. tinctorius and reticulatus, but differing from the former by the longer limbs, the tarso-metatarsal articulation reaching beyond the tip of the snout, and from both by the belly being granulate. Llead to fore limbs above and below yellow; humerus above, and the borders of the yellow colour white ; the rest of the body and limbs black, with wide-meshed grey reticulation. Male with a subgular vocal sac. From snout to vent 20 millim. Four specimens, S 2 • 5. DENDROBATES TRIVITTATUS, Spix. The lines and other markings on the upper surfaces bright yellow. 6. DENDROBATES HAHNELI, sp. n. (Plate LVII. fig. 4.) Snout truncate, as long as the diameter of the eye ; loreal region vertical; interorbital space broader than the upper eyelid; tympanum indistinct. Fingers and toes slender, the tips dilated into small disks ; first and second fingers equal in length ; subarticular tubercles feebly developed ; two scarcely prominent metatarsal tubercles. The hind limb being carried forward along the body, the tarso-metatarsal articulation reaches beyond the tip of the snout. Back slightly tubercular. Black ; limbs above blackish grey, black-barred ; a narrow white line, turning to bright yellow near the loins, on each side of the body, extending on the outer border of the upper eyelid and the canthus rostralis to the end of the snout, where it unites with its fellow ; a white line on the upper lip, from the vertical of the anterior border of the eye to the arm ; a bright orange-yellow spot at axilla, another on upper surface of femur near the loin, and a third on inner surface of tibia near the femur; belly and lower surface of limbs marbled with grey. Male with a subgular vocal sac. From snout to vent 23 millim. Allied to B. trivittatus. Several specimens, J $ . 7. PHYLLOBATES TRILINEATUS, sp. n. (Plate LVIII. fig. I.) Snout obtuse, as long as the diameter of the eye; loreal region vertical; nostril slightly nearer the tip of the snout than the eye • interorbital space broader than than the upper eyelid ; tympanum concealed. Fingers slender, moderately elongate, first extending beyond second, fourth extremely short ; toes slender, with rudiment of web ; disks small; subarticular tubercles feebly developed • two slightly prominent metatarsal tubercles. The hind limb 'beim* carried forward along the body, the tibio-tarsal articulation reaches centre of eye. Skin perfectly smooth. Dark brown above, limbs |