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Show 1891.] TADPOLES OF THE EUROPEAN BATRACHIANS. 609 mouth equalling the distance between the nostrils and two thirds the distance between the eyes. Series of labial teeth |, the second upper series very widely interrupted in the middle, the third extremelv short; first lower series very short, hardly half the length of the second, fourth interrupted in the middle. Beak as in R. temporaria. Tail acutely pointed, twice as long as the body, its depth one third its length. Lines of muciferous crypts very distinct, as in R. agilis. Brown above, whitish beneath; caudal crests whitish, dotted with dark brown, the upper with some larger spots. Total length 44 millim.: body 14, width of body 10; tail 30, depth of tail 10. R. latastii inhabits Northern Italy and Tuscany. Its tadpole has not been described before. I a m indebted to M . Heron Royer for a single specimen, from which the above notes are taken. 7. RANA AGILIS, Thomas. (Plate XLV. fig. 7.) In general form similar to R. esculenta, but snout rather shorter, the nostrils being equidistant from the eyes and the end of the snout, and spiraculum considerably nearer the posterior than the anterior extremity of the body. Interocular space twice as great as the distance between the nostrils. Tail twice to twice and a half as long as the body, pointed and attenuate or submucronate at the end, its depth about twice and two thirds in its length; upper crest very convex, deeper than the lower, and extending upon the back as far as the level of the spiraculum. Beak broadly edged with black, usually with a black tubercle or knob in the middle of the basal part of the upper mandible, which may be accompanied by a smaller one on each side. Usually two series of papillae bordering the lower lip. Labial teeth in | series, the second and third upper short and widely separated in the middle, the first lower short, the three others nearly twice as long and uninterrupted, or the fourth very narrowly interrupted in the middle. Very distinct lines of crypts on the head and body. One of these lines forms a hoop, the ends of which approach on the upper lip, passing above the nostrils and bordering the eye above and' below ; another begins behind the eye and bifurcates, the upper branch extending to the upper caudal fin, the lower to the middle of the muscular portion of the tail; a small branch may descend on each side at a short distance behind the eye, forming a sigmoid curve ; auother, curved line on each side, bordering the spiraculum above. (cf fig.' 3, A, p. 598). Pale brown or rufous above, with dark brown spots ; sides with roundish golden spots between a brown or reddish network; belly white, with pale golden or mother-of-pearl spots; throat pink; muscular portion of tail pale brown or yellowish, with small brown or grey spots; caudal crests greyish white, with white and small |