604 ZOOLOGY— REPTILES AND BATRACHIANS OF ARIZONA. 



'."lli. Cnemidophorus tessellatus tigris, (Bil. & Gir.). 



Cnemidophonis tigris, Bd. & On:., Proo. Acad. Nat. Sci. Phila., 1S52, 09. — lid., Stans. 



Rep. Exp. Great Salt Lake, 1853, 338.— Bd., U. S. & Mex. Bouud. Surv., 



ii, pt. ii, 1859, Reptiles, 10, pi. 33. 

 .' (Jnemidophorus marmoratus, Bd. & Gir., Proc. Acad. Nat. Sci. Phila., 1852, 128. 

 ? Cnemidophorus undulatus, Hallow., Proc. Acad. Nat, Sci. Phila., 1851,94. — Id., P. R. 



R. Rep., x, 1859, Williamson's Route, Reptiles, 8. 



Utah and southward in the Sonoran region. The true tessellatus of 



Say, which splits into several conspecies, is indicated by authors from 



Colorado. 



SCINCIDAE. 



38. Eumeces obsoletus, (Bd. & Gir.) Cope. 



Plestiodon obsoletum, Bd. & Gir,, Proc. Acad. Nat. Sci. Phila., 1852, 129. — Hallow., 



Sitgreave's Exp. ZuSi & Col. Riv., 1853, 111. 

 Plestiodon obsoletus, Bd., U. S. & Mex. Bound. Surv., ii, pt. ii, 1859, Reptiles, pi. 25, rigs. 



!)_1(3._W., P. R. R. Rep., x, 1859, Whipple's Route, Reptiles, .".9. 

 Plistodon obsoletus, Cope, Proc Acad. Nat. Sci. Phila,, I860, 304. 

 Eumeces obsoletus, Cope, Check-List, 1875, 45. 



The specimen, to which no locality is assigned in Professor Cope's 



article above cited, was taken at Bero Springs, N. Mex., from among some 



aquatic plants of a pool. It appeared sluggish, and was easily caught 



39. Eumeces guttulatus, (Hallow.) Cope. 



Lamprosaurus guttulatus, Hallow., Proc. Acad. Nat. Sci. Phila., 1852, 200. — Id., Sit- 

 greave's Exp. Zufii & Col. Riv., 1853, 113, pi. 4. 



Plestiodon guttulatus, LIallow., Proc. Acad. Nat. Sci. Phila., 1857, 215.— Bd., U. S. & 

 Mex. Bound. Surv., ii, pt. ii, 1859, Reptiles, 12.— Id., P. R. R. Rep., x, 1859, 

 Whipple's Route, Reptiles, 18. 



Plistodon guttulatus, Cope, Proc, Acad. Nat, Sci. Phila., 1800, 304. 



'Eumeces guttulatus, Cope, Check-List, 1875, 45. 



From Fort Whipple, my collection. 



OPHIDIA. 



SOLENOGLYPHA. 



• CROTALIDAE. 



■10. Caudisona confluenta, (Say) Cope. 



Crotalm confluentus, Say, Long's Exped. Rocky Mts., ii, 1823, 48. — Bd. & Gir., 

 Cat. N. A. Rept,, 1853, 8.— Bd., P. R, R. Rep., x, 1859, Whipple's Route, 

 Reptiles, to, pi. 24, f. 4.— Id., IT. S. & Mex. Bound. Surv., ii, pt. ii, 1859, 

 Reptiles, 14.— Coop. & Suckl., Nat, Hist. Wash. Terr., 1800, 295, pi. 12.— 

 Cope, Check List, 1875, 33. 



