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Show 204 DR. J. ANDERSON ON INDIAN REPTILES. [Feb. 21, on the thigh ; tympanum very distinct, nearly as large as the eye; parotoids slightly longer than the head, elongately kidney-shaped, moderately broad, not very prominent, without a black edge. Third finger longer than the fourth ; toes half webbed, the membrane prolonged along the toes as a fine fringe nearly to the tips. Metacarpus with two coloured rather small tubercles, the innermost one being the largest. Numerous rather flat tubercles of different sizes, each capped with a small horny papilla. Adults light greyish olive, with numerous dark olive-black spots, communicating and producing a reticulated appearance ; spotted or obscurely barred with the same colour on the limbs, and with an obscure interrupted dark band between the eyes, and occasional indistinct traces of a pale vertebral line ; below whitish. All the young specimens are various shades of olive-grey or brown, whitish below. Length of adult 3 inches. Hab. Agra district. This species is closely allied to the European B. viridis, but its tympanum is large and distinct. It appears to be common in the Agra district, where it is associated with B. melanostidus. With Psammosaurus griseus, this is the second African reptile which has been added to the fauna of the north-west within the last three or four years. Very little is known of the reptiles of the dry desert country to the south-west of Delhi and Agra; but further researches will in all probability prove that many more of its forms are African. The similarity of the marking's of the adults of this species to those of Cacopus breviceps is remarkable, and suggests that cither one or the other may be an instance of mimicry. BUFO MELANOSTICTUS, Schneid.; Gthr. /. c. p. 422. Agra. BUFO SIKKIMMENSIS, Blyth. Bombinator sikkimmensis, Blyth, Journ. As. Soc. Beng. vol. xxiii. p. 300. Scutiger sikkimmensis, Theobald, Cat. Rept. As. Soc. Museum, Calcutta, 1868, p. 83. This remarkable Toad, which was referred by Blyth to Bombinator, has neither maxillary nor vomerine teeth. It is very closely allied to the true Toads, and only differs in its free toes and in its slightly notched tongue, which, however, resembles that organ in Bufo in its elongately ovate form, and in being free behind. It has no cranial ridges ; and its parotoids, which stretch from the eve to the shoulder, are very narrow and linear. Its Eustachian tubes are not obsolete, as described by Theobald, but are very minute orifices placed close to the angle of the mouth. The character on which Theobald has founded the genus is an unfortunate one, as it is purely sexual and peculiar to the male. It consists of two plate-like callosities on either side of the thorax, thickly studded with minute dark-brown granules, such as occur on the same region in B. liebigi |