No. 8. — Sovie Amphibians from Northwestern Peru, with a Revision of the Genera PhyUobates and Telmatobius. By Thomas Barbour and G. K. Noble. During the summer and autumn of 1916 the junior author served as zoologist of an expedition to northwestern Peru undertaken in the interests of the School of Tropical Medicine (Harvard University) and the Museum. This paper is the first of a series dealing with the herpetological collections secured. It is our intention to make these papers more than faunal lists and though it was expected that the deserts of northern Peru would yield few amphibians and that the number of species would be small, the percentage of new forms proves extra-ordinarily large. Notes on the habits of the species observed, especi-ally of the new marsupial frogs will be included in a later paper. The expedition crossed the provinces of Piura, Cajamarca, and Lambayeque. The towns of Huancabamba and Palambla are on the western range of the Andes, on the border of Piura. This north-ern Huancabamba should not be confused with the town of the same name of central Peru near Oxapampa. From the latter several reptiles and amphibians were collected by Enrique Boettger in 1910 and described by Boulenger. Not one of these species was found in the Huancabamba visited. This caused some confusion and after cor-respondence with Dr. Boulenger and Mr. W. F. H. Rosenberg, it is apparent that Boettger's material should be labeled Oxapampa, his Huancabamba being far less widely known than the much larger town of the same name. The species affected are : — Anolis boettgeri, Stenoeerciis boettgeri, Prionodactylus sjyinalis (Ann. mag. nat. hist., 1911, ser. 8, 7, p. 19-24); Hyla melanopleura, Edalorhina nasuta {Loc. cit., 1912, ser. 8, 12, p. 185-190); Leptognathus polylepis, Lachesis chloromelas (Loc. cit., 1912, ser. 8, 10, p. 422-424); and IlyJella occllata (Loc. cit., 1918, ser. 9, 2, p. 433). Tabaconas lies in a little valley between the ranges of the Cordillera in the northern part of Cajamarca and is in the only strip of rain forest met with during the expedition. Perico, Bellavista, and Chumayo are in the same province in the low, broad and arid valleys of the Chinchipe and Maranon Rivers. Quero-
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