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Show 608 MR. G. A. BOULENGER ON THE [Nov. 17, forming ~ or ~ series, of which the second upper is but narrowly interrupted in the middle ; the four lower series are either all continuous and occupying nearly the whole width of the lip, or the fourth is broken up in the middle. A single series of papillae on the lower labial edge. Tail obtuse, once and two thirds the length of the body, its depth about one third its length. Grey above, closely speckled with black, whitish beneath ; muscular portion of the tail reticulated with black; caudal crests with small black spots or arborescent markings. Total length 48 millim.: body 18, width of body 12; tail 30, depth of tail 10. Several tadpoles, from the Parnassos, were received from Dr. Kriiper. In recently describing this Frog (Ann. & Mag. N. H. 6, viii. 1891, p. 346, with fig.), I have explained how the study of these larvae led me to suspect the existence of a new species of Rana in the mountains of Greece (Parnassos and Korax). 5. RANA IBERICA, Blgr. (Plate XLV. fig. 5.) Like the following, this Frog is intermediate between R. temporaria and R. agilis in both its perfect and larval state. Width of mouth much less than the interocular space, which equals nearly twice the distance between the nostrils. Series of labial teeth j, rarely j, the second upper series widely interrupted in the middle, the third very short; first lower series short, hardly half the length of the second, fourth interrupted in the middle. The beak resembles that of , R. agilis and, in one of the four specimens before me, the upper mandible is likewise provided with a large black tubercle in the middle of its basal portion. Tail obtuse, once and a half to once and three fourths the length of the body, its depth about one third its length. Lines of muciferous crypts very distinct, as in R. agilis. The colour of the upper parts varies from reddish brown (Heron Royer) to blackish brown (Bedriaga) ; belly greyish or whitish ; caudal crests brownish, the upper darker than the lower, with brown dots and large blackish spots, Which are also present on the muscular part. The largest of the two tadpoles from Coimbra, which I owe to the kindness of Dr. de Bedriaga, measures 49 millim.: body 17, width of body 12 ; tail 32, depth of tail 11. The tadpole of this species, which inhabits Spain and Portugal, has recently been described by Heron Royer and Van Bambeke (1. c. p. 258, pi. xvi. fig. 4) and by Bedriaga (Larves des Batr. de Portug., Coimbra, 1891, p. 8). According to Boscii (Bull. Soc. Zool. France, 1880, p. 259), R. iberica is usually found in or near water. He found small larva? on the 22nd of March and, on the same day, a breeding male. 6. RANA LATASTII, Blgr. (Plate XLV. fig. 6.) Intermediate between R. temporaria and R. agilis. Width of |