1508.] NATUKAX, SCIENCES OF PHILADELPHIA. 117 



Ctenosaura Wiegman (Isis, 1828, p. 371). 



Monotype Ctenosaura cyduroides Wieg. (= Lacerta acanthura Shaw). 



Dipsosaurus Hallowell (Proc. Acad. Nat. Sci. Phila., 1854, 92). 



jMonotype Crotaphytus dorsalis B. and G. 



CrotaphytUS Holbrook (No. Am. Herp., II, p. 79, 1842). 



Monotype Agama collaris Say. 



Sauromalus DuoKiril (Arch, du Mus., VIII, 535, 1856). 



Monotype Sauromalus ater Dum. 



Callisaurus Blainville (Nouv. Ann. du Mus., IV, 286, 1835). 



Type Callisaurus draconoides Blain. By original designation. 



Uma Baird (Proc. Acad. Nat. Sci. Phila., 1858, p. 253). 



Monotype Uma notata Bd. 



Holbrookia Girard (Proc. A. A. A. Science, IV. 201, 1851). 



Monotype Holbrookia maculata Gir. 



Uta Baird and Girard (Stans. Exp. Gr. Salt Lake, 344, 1852). 



Type Uta stanshuriana B. and G. By original designation. 



Soeloporus Wiegman (Isis, 1828, p. 369). 



Type Sceloporus torquatus Wieg. By designation of Fitzinger 

 (Syst. Rept., p. 17, 1843). 



PhrynoBoma Wiegman (Isis, 1828, p. 367). 



Subgenus Phrynosoma Wieg. Type Lacerta orhicidare Linn. By 

 designation of Wiegman {Herp. Mex., 18, 1834). 



Subgenus Anota Hallowell {Proc. Acad. Nat. Sci. Phila., 1852, p. 182). 

 Monotype Anota Mccallii Hallow. 



HELODERMATIDiE. 



Heloderma Wiegman (Isis, 1829, p. 627). 



Monotype Heloderma horridum Wieg. 



ANGUID^. 

 OpMsaurus Daudin (Hist. Rept., VII, 346, 1803). 



Monotype Anguis ventralis Linn. 



DiploglosSUS Wiegman (Herp. Mex., 36, 1834). 



Type Tiliqua fasciata Gray. By designation of Dum. and Bib. 

 {Erp. Gen., V, 588, 1839).^ 



Subgenus Celestus Gray (Aim. Mag. Nat. Hist., 1839, p. 288). 

 Monotype Celestus striatus Gray. 



^ The subgenus Diploglossus is extra limital. 



