468 GEOLOGICAL SUEVEY OF THE TEEEITOEIES. 



EUT^NIA PAEIETALIS, Say. 



Salt Lake City j lake ten miles east of Logan, Utah, (salt ;) Fish 

 Creek, Montana. 



PiTYOPHis BELLONA, B. and G. 



One specimen without the anterior frontal (vertical) shield ; from Og- 

 den, Utah. 



Bascanium flaviventets, Say, (B. and G., Catalogue, p. 96.) 



Ogden, Utah. 



Lacertilia. 



PHRYNOSOMA DOUGLASSIl, Bell. 



Var. a. — The usual form ; Salt Lake City. 



Yar. /?, exilis. — A small form not more than one-half or two-thirds the 

 usual size, but nearly identical in details of structure and coloration. 



The differences observable are : the rather shorter muzzle, which is 

 entirely vertical in profile ; the smaller scale above the canthus of the 

 mouth, and the temporal horns ; the less prominence of the posterior 

 superciliary angle, and the much reduced size. A geographical variety. 

 Carrington's Lake, Montana ; Fort Hall, Idaho. 



SOELOPOEUS CONSOBEINUS, B. and G. 



This species is very abundant and variable. Its varieties are four, 

 as follows : 



Var. 1. — Typical 5 scales large, especially on the sides ; crural cross- 

 series, 10-11 ; rows between interscapular and crural points, 33 ; 2 pre- 

 frontals on each side ; lateral and dorsal spots distinct. Localities, Yel- 

 lowstone Basin ; Blackfoot Fork. 



Var. 2. — Like the last, but the scales smaller on sides and back ; 13 

 rows on rump. Salt Lake City, Utah ; south of Fort Hall, Idaho. 



Var. 3. — Scales still smaller ; 16-17 interscapular, 14 crural cross- 

 rows ; 3 i)refrontal j)lates on each side. Dorsal spots large, their bor- 

 ders touching the lateral spots ; both pale-edged behind, forming an 

 angular border in $ . This form grades into the last. A male has the 

 border color of variety 2. South of Fort Hall, Idaho. 



Var. 4. — Like variety 2, but only half the size. South of Fort Hall, 

 Idaho, and Salt Lake City. 



SCELOPORUS GEACiosus, B. and Gr.; S. gracilis, B. and G-. 



This species is very near the last, but the scales are still smaller. 

 There are 38 transverse dorsal rows and 20 interscapular. The lateral 

 scales are twice emarginate. From Salt Lake, Utah, to Oregon. 



Cnemldophoeus tessellatus, Baird ; Amiva tessellata, Say, {vide 

 Pac. E. E. Surv., vol. X, Beckwith's Eeport.) 

 Salt Lake, Utah. 



Testudinata. 



Cheysemys oregonensis, Harlan ; Agass. 

 The Yellowstone Lake. 



BATEACHIA. 

 Anuea. 



BuFO C0LUMBIEN3IS, B. and G., (United States Exploring Expedition, 

 Herpetology, by Girard, p. 77.) 

 Pleasant YaUey and Yellowstone Basin. Specimen from latter local- 



