Vor. IIT] VAN DENBURGH AND SLEVIN—ARIZONAN REPTILES 423 
Temporals 
a 
Senora 
Urosteges 
Supralabials 
Infralabials 
Preoculars 
Postoculars 
39250 || ho 85 8—8 | 10—10 | 2—2 | 3—3 | 1+1+2—1+1+3 
39239) | 165 69 ss) || SY 2—2 | 3—3 | 1+1+1—1+1+3 
35240 | 170 82 Saal 9—10 | 2—2 | 3-—3 | 1-+-2--3—1-+-1-53 
35241 | 170 84 8—9 | 9—10 |} 2—2 | 3—3 | 14+2+2—1+1+42 
35242 | 166 72 8—8 | 10—10 | 2—2 | 3—3 | 1+1+2—1+1+2 
35243 | 165 75 8—8 | 10—10 | 2—2 | 3—4 | 14+14+3—1+1-+3 
35244 | 177 87 8—8 | 9—10 } 2—2 | 3—3 | 1+14+3—1+4+2+43 
35245 | 171 85 8—8 | 10—X | 3—2 | 3—4 } 14+14+3—1+42+3 
35246 | 166 73 8—9 | 9—10 | 2—2 | 3—4 } 14+1+2—1+42-42 
35247 | 172 80 8—8 | 10—10 | 2—2 | 3—4 | 1+1+3—1+1+3 
35248 | 161 72 8—8 | 10—10 | 2—2 | 3—4 |} 14+1+3—1+1-42 
35249 | 172 83 8—8 | 10—10 | 2—2 | 3—4 } 24+2+3—1+42+3 
SO200 0 iS 86 8—8 | 10—10 | 2—2 | 3—3 | 1+1+2—1+41-+43 
Sodas eS LAG 87 ST py UaaN || SSS |) les Ses ailge Bae 
SO252 | 167 80 8—8 | 10—10 |} 2—2 | 3—4 | 1+1+3—1+2+3 
52590) 165 83 8—8 | 10—10 | 2—3 | 3—4 | 1+2+3—1+1+3 
35254 | 166 86 i—¥ f=!) WD || S38 | ap ilsrseailspilses 
35255 | 161 74 Se |) 2-9) f=) Bae) | Wari Sess elses 
72.—Trimorphodon lyrophanes Cope 
One specimen was obtained from Professor Brown. It is 
labeled Rosemont, Pima County. It is No. 33846, and has 
scales in 21 rows, gastrosteges 234, anal divided, urosteges 
56+, supralabials 7-7, infralabials 10-11, preoculars 2-2, 
postoculars 3-3, temporals 2+3-3-+-4, loreal 2-2, posterior 
genials shorter. There are thirty-seven dark dorsal blotches, 
of which nine are on the tail. 
73.—Tantilla nigriceps Kennicott 
A species of Tantilla was found to be fairly common along 
the Santa Cruz River near Tucson, where eleven specimens 
were collected between March 26 and April 1. One (No. 
34171) was secured in Ventana Canyon, near the base of the 
Catalina Mts., April 28, 1912. They are much smaller than 
_ Tantilla wilcoxi, and have fewer gastrosteges and no posterior 
dark border on collar. These twelve specimens agree in hay- 
ing scales in 15 rows, preoculars 1-1, temporals 1-1, supra- 
labials 7-7, infralabials 7-7, anal divided, posterior genials 
shorter. Other scale counts are: 
November 3, 1913 
