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Show 548 MR. G. A. BOULENGER ON LITTLE-KNOWN [May 5. The following papers were read :- 1. On some little-known Batrachians from the Caucasus. By G. A. BOULENGER, F.R.S. [Eeceived May 4, 1896.] (Plates XXI. & XXII.) Ten species of Batrachians have been recorded from the Caucasus, viz. Bana esculenta, L. (var. ridibunda, Pall.), B. macrocnemis, Blgr., B. earnerani, Blgr., Bufo viridis, Laur., B. vulgaris, Laur., Hylci arborea, L., Salamandra caucasica, Waga, Molge cristata, Laur. (var. harelinii, Strauch), M. vulgaris, L. (var. meridionalis, Blgr.), and M. vittata, Gray. To these 10 species an important addition has recently been made: Pelodytes caucasicus, Blgr., the second species of a genus believed to be confined to Western "considerable material having reached the British Museum of late chiefly through the kindness of Dr. G. Eadde, Director of the Tiflis Museum, I a m able to give detailed descriptions and figures of, or notes upon, five species which are still imperfectly known, viz. Bana macrocnemis, B. camerani, Pelodytes caucasicus, Salamandra caucasica, and Molge vittata. BANA MACROCNEMIS. Bana macrocnemis, Bouleng. Proc. Zool. Soc. 1885, p. 22, pl. iii., and Bull. Soc. Zool. France, 1886, p. 596; Boettg. Ber. Senck. Ges. 1892, p. 136. This species was originally described from a single male specimen collected at Brusa, Asia Minor, by the late Baron von Maltzan. It has since been recorded from near Tiflis. The following description is taken from three Tiflis specimens in the British Museum, viz two from the Tortoise Lake, received from the Senckenberg Museum; the third from Eijut, 4200-4300 feet, presented by H r W . Wolterstorff, of Halle. As observed by Prof. Boettger, the snout is often more elongate than in the type from Brusa, approaching in shape that of Bana agilis, and the inner metatarsal tubercle a little shorter; otherwise the agreement is complete. The vomerine teeth form two small oblique groups, close together, entirely behind the level of the choanal Head a little broader than long ; snout rounded or obtusely acuminate, not prominent, with the lores rather oblique; nostrils nearly equally distant from the eyes and the end of tbe snout, the distance between them much greater than the interorbital width, which is also much less than the width of the upper eyelid ; tympanum one half to three fifths the diameter of the eye, from which it is rather remote. Fore limb very strong in the breeding male, just as m B. temporaria, and with the inner finger provided with a still stronger pad, which is not divided by a transverse groove, ibe first finger extends slightly, but distinctly beyond the second. |