Vor. III] VAN DENBURGH AND SLEVIN—ARIZONAN REPTILES 417 
No. 33871, a female, has scales in 17 rows, gastrosteges 195, 
and divided, urosteges 102, supralabials 7-8, infralabials 9-10, 
preoculars 2-2, postoculars 2—2, temporals 2+-2-+-2, loreal 1-1, 
posterior genials longer. 
No. 33872, a male, has scales in 17 rows, gastrosteges 200, 
anal divided, urosteges 112, supralabials 8-8, infralabials 10— 
11, preoculars 2-2, postoculars 2-2, temporals 2+2-++2, loreal 
1-1, genials equal. 
63.—Bascanion semilineatum Cope 
Several specimens of this snake were captured in the Hua- 
chuca Mountains. They were found in the oak region near the 
lower ends of Miller, Ramsey, and Carr Canyons, July 10-30, 
1912. One was found under a stone, one on a wall of rock, 
and the others on fairly open ground. The lower surfaces were 
straw-yellow. All have scales in seventeen rows, anal divided, 
loreal 1-1, postoculars 2—2, supralabials 8-8. The other counts 
are in order for Nos. 34749, 34750, 34751, 34752; gastro- 
steges 200, 200, 196, 200, urosteges 129, 138, —, 132, infra- 
labials 929.1929! 9210, 10-10) preoculars 1-1, 1-1 J-1, 2-2, 
femmporals) 24-2, 1-2-3, 2 -(-2ae 9, Saige 2 —2 ate at 
Mr. Herbert Brown showed us a specimen collected at Har- 
shaw, Patagonia Mts., Santa Cruz County, July 20, 1910. 
64.—Bascanion taeniatum (Hallowell) 
One typical specimen of this racer was collected at Oak 
Creek, Coconino County, September 2, 1912. It was found in 
the brush on the side of the canyon. It is No. 35235, and has 
scales in 15 rows, gastrosteges 198, anal divided, urosteges 
125, supralabials 8-8 infralabials 9-9, preoculars 2-2, post- 
oculars 2-2, temporals 2-2-2, loreal 1-1, posterior genitals 
longer. 
65.—Arizona elegans Kennicott 
The only snake of this kind obtained, No. 33452, was dug 
out of a hole in a sand hill east of Yuma, March 19, 1912. It 
has scales in 27 rows, gastrosteges 209, anal entire, urosteges 
49, supralabials 9-8, infralabials 13-12, preoculars 1-1, post- 
oculars 2-2, temporals 2++3, posterior genials divided. 
In life the lower surfaces and two to three rows of lateral 
