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Show 150 MR. O. THOMAS ON SMALL [Feb. 15, reaches between the eye and the nostril. The inner metatarsal tubercle is smaller than in R. schlegeli, and quite flat. A single specimen, measuring 53 millim. from snout to vent. 3. MICROHYLA FISSIPES, Blgr. CAUDATA. 4. MOLGE PYRRHOGASTRA, Boie, var. ENSICAUDA, Hallow. Triton subcristatus (ensicauda), Hallow. I. c. p. 494. These specimens (ten in number) appear sufficiently different from the Japanese typical form to warrant a varietal distinction. The head is proportionally somewhat broader, the digits shorter, and the tail, in the female, longer. The lower parts are yellow (not red), immaculate or more or less spotted with black; digits yellow inferiorly (black in the typical form). Upper parts black, in some specimens with scattered small yellowish or pale green spots; sometimes a yellowish vertebral streak. rf- 2- millim. millim. Total length 115 158 From snout to cloaca 53 70 Head 13 15 Width of head 12 14-5 Fore limb 20 21 Hind limb 20 23 Tail 62 88 EXPLANATION OF THE PLATES. PLATE XVII. Fig. 1. Japalura polygonafa, p. 146. 2. Tachydromus smaragdinus, p. 147. P L A T E XVIII. Fig. 1. Tachydromus smaragdinus. Upper view of head, X 2. 2. Lygosoma pellopleurum; and upper view of head, X 2, p. 147. 3. Tropidonotus pryeri, p. 149. 3. On the small Mammalia collected in Demerara by Mr. W. L. Sclater. By OLDFIELD THOMAS. [Eeceived January 29, 1887-] (Plate XIX.) The Mammalia obtained by Mr. W. L. Sclater during his recent visit to British Guiana consist of 13 specimens belonging to 8 species, of which one is new. All of them have had their exact localities and dates recorded, and are therefore of interest even when belonging to common species. The discovery of a new species of the |
