. Bulletin - United States National Museum. Science. 304 BULLETIN 34, UNITED STATES NATIONAL MUSEUM. The tibia is also shorter iu typical examples, in-easuriiif? oiil^' three times the interorbital width. This measurement is i)artly due to the iiiterorbital enlargement. The skin is less tubercular and the colors aie paler. The form has an especial geographical range. But 1 find speci- mens from different parts of the West which connect this form with the true S. hammondii. Such are specimens collected by Br. Hayden in the valley of the Great Colorado, in eastern Utah, and others obtained by my
. Bulletin - United States National Museum. Science. 304 BULLETIN 34, UNITED STATES NATIONAL MUSEUM. The tibia is also shorter iu typical examples, in-easuriiif? oiil^' three times the interorbital width. This measurement is i)artly due to the iiiterorbital enlargement. The skin is less tubercular and the colors aie paler. The form has an especial geographical range. But 1 find speci- mens from different parts of the West which connect this form with the true S. hammondii. Such are specimens collected by Br. Hayden in the valley of the Great Colorado, in eastern Utah, and others obtained by myself at Sante Fe, N. Mex. In some of the former the interorbital width enters the length of the tibia three and a half times. The Spca stagnaUs is known as yet from young specimenssouly, which have but recently passed their metamorphosis. The principal peculi- arity which characterizes them is the minute size of the ostia pharyn- gea of the Eustachian tubes. I suspect this to be a character of imuja- tnrity, as I find a similar state of affairs iu some of the young speci- mens of Scapkiopus coucliii in the collection. Spea hammondii intermontana Cope. Proceetl. Ac. Pbila., 1883, p. 14. 1 took a specimen of this species within the limits of Salt Lake City, and subsequently obtained three or four specimens from Pyramid Lake, Nevada. The sides and much of the dorsal region are covered with rather largo tubercles closely phiced. The frontoparietal bones, though ossi- fied, are not roughened, as in the species of Scaphiopus. It is nearest tlic tS. couchii (from near San Antonio, Tex.). In that species the vo- merine teeth are entirel^^ posterior to the internal naresj iu this one they are between the posterior borders of the same. The lips are not cross barred, as in the B. couchii; and the superior region has two pale lines on each side. In 8. couchii these lines are replaced by a coarse marbling. As compared with the Spea hammondii, this frog differs in its larger size, lighter co
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