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Show 1899.] ON A NEW LIZARD FROM ECUADOR. 517 of Cancroma cochlearia, which seems to be a permanent resident near the mouth of the Tiete Biver. It is certain that this bird was obtained by Mr. Krone at Iguape. It is also certain that the Bed Ibis (Guara rubra) sometimes occurs in the summer at Iguape and also at Paranagua. It is possible that Cancroma, like Guara, is a coast-bird sometimes extending its migrations to the south of Sao Paulo. It is evident that in this case Cancroma would be more common at Bio than here. If this be not the case, then the Iguape specimens of Cancroma may be derived from the Paranapanema system, and have passed thus to the Bibeira Biver. The exploration of the avifauna of the tropical parts of the Bivers Paranapanema and Tiete is, therefore, one of the most pressing conditions for the advancement of the study of tbe Sao Paulo ornis. As the collection in the British Museum is said to include Cancroma from Bio de Janeiro, the specimens from Iguape may belong to the Coast ornis. I must not here enter into discussions for which I have not such sufficient material as for the ornis of Sao Paulo ; but I may at least say that the contrast in which the conclusions of Pelzeln stand to facts, as here shown, has also made m e very sceptical concerning his other divisions and districts. In Bio Grande do Sul there exists a notable contrast between the fauna of the coast-region and that of the Missiones of the Uruguay. Chrysotis cestiva is found there with species of Ara etc., and also the monkey Mycetes niger. This contrast exists also in Sao Paulo; and I a m much disposed to consider these differences as more important than those observed between the northern and southern parts of the littoral zone. If this should be the case, we have three great faunal subregions of Brazil-the Amazonian, the Central, and the South-eastern. EXPLANATION OF PLATE XXVII. Map of South America, showing the South-eastern Brazilian Province and its division into three Sub-provinces-Central (blue), Northern (yellow), and Southern (red). 3. Description of a new Lizard of the Genus Ameiva Ecuador. By G. A. BOULENGER, F.R.S. [Received March 30, 1899.] (Plate XXVIII.) AMEIVA LEUCOSTIGMA, n. sp. Nostril in the posterior part of the anterior nasal; four supraoculars, the first of which may be broken up into scales, the three others bordered on both sides with granules, or the second in contact with the frontal; six supraciliaries ; a single frontoparietal, followed by an interparietal; parietals broken up into small shields ; PROC. ZOOL. Soc-1899, No. XXXIV. 34 |
