A. REPTILIA. 



CHELONIA. 



CRYPTODIRA. 



CINOSTERNIDAE. 



1. Aromochelys carinatus, Gray. 



Aromochclys carinatus, GRAY, Cat. Shield Reptiles Brit. Mus. COPE, Proc. Acad. Nat. 



Sci. Phila,, 1866, 310. Id., Check-List, 1875, 52. 

 Ozotheca tristijcha, AGASS., Coiitrib. Nat. Hist. U. S.,i, 1857, 425, pi. 5, figs. 20-22. BD., 



U. S. & Mex. Bouud. Surv., ii, pt. ii, 1859, Eeptiles, 3. 



Specimens from Fort Whipple, summer of 1865. 



I ascertained the occurrence in the Territory of two other species of 

 turtles, specimens of which were among a small part of my collections, which 

 unfortunately was lost. One of these was procured on the Colorado Chi- 

 quito River in July, 1864; it was about eight inches long. Another en- 

 tirely different species was found to be common in the headwaters of the 

 San Francisco River, near Fort Whipple, where several specimens were 

 secured with hook and line in January, 1865. They were very voracious, 

 being often drawn out of the water and taken in hand before they would 

 relinquish their hold, although not fastened upon the hook. These were of 

 small size, about four inches in length. (One of these species may have 

 been Chrysemys oregonensis.) 



The two following species are introduced in the present connection on 

 the authority of Professor Baird's Report on the Reptilia of the Mexican 

 Boundary Survey : 



2. Cinosternum sonoriense, LcG. 



Kinostcrnon sonoriense, LEG., Proc. Acad. Nat. Sci. Phila., 1854, 184. 



Thyrosternum sonoriense, AGASS., Coiitrib. Nat. Hist. U. S., i, 1857, 428, pi. 5, figs. 8-1 1. 



BD., U. S. & Mex. Bound. Surv., ii, pt. ii, 1859, Eeptiles, 3. 

 Cinosternum sonoriense, COPE, Check-List, 1875, 52. 



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