CROCODILIANS, LIZARDS, AND SNAKES. 



417 



According to Stejneger this is the desert form of the species. In 

 Arizona Dr. Merriain only found it on the Painted Desert, while he 

 found the P. d. hernandesi in the cedar and pine belts iu the San 

 Francisco Mountain region. 



rhrynosoma douylasaii ornatisHmum. 



Catalogue! f,-^,«jr 

 mens. 



No. 



Locality. 



AVhen col- 

 lected. 



From whom received. 



Nature of 

 specimen. 



201 

 202 



204 

 205 



206 



4785 

 843() 

 8088 

 4580 

 ?4584 

 3222 



4502 



4506 

 17149 



Between A n 1 1 o c li and 



Cuesta. 

 Between St. Domingo and 



Allniquerque. 



Albuquerque 



Near liold Mountains 



Canadian 



ZuQi Mountains 



Pecos River and Kio 



Grande. 

 Between Janos and San 



Luis Spring. 



Santa Fe, New Mexico ' 



Rock Canyon, Arizona July — ■ 1874 



Cove Ci'cek, Utah. 

 Little Colorado River. . 

 Upper Colorado region. 

 Near 38° latitude 



Pole Creek. 



Jalapa, Mexico . . 

 Tucson, Arizona. 



-, 1872 



Whipple . 

 ...-do.... 



do 



....do 



....do 



Sitgreavcs 

 Emory 



.do. 



Howard 



J.H. Rutter 



Dr. H. C. Yarrow 



Lieut. J. C.Ives, U.S. A. 



do 



Lieut. E. G. Beckwith, 



U. S. A. 

 Lieut. F. T. B r v a n , 



U. S. A. ' " 



R.M. D'Oca 



Herbert Brown 



Alcoholic. 



do. 



do. 

 do. 

 do. 

 Type, 

 do. 



do. 



do. 

 do. 

 do. 

 do. 

 do. 

 do. 



do. 



do. 



PHRYNOSOMA ORBICULARE Wiegmann. 



Phrynosoma orbiculare Wiegmann, Isis, 1828, p. 367.— Wagler, Descr. et Icon. 

 Amph., 1833, pi. xxiii, figs. 1, 2.— Schinz, Naturg. unci Abbild. der Kept., 

 1833, pi. 27, fig. 2,— GRAVENifoRST, Act. Acad. Caes. Leopold. -Carol. Nat. 

 Cur., XVI, Pt. 2, 1833, p. 912, pi. 63,— Wiegmann, Herpet. Mex., 1834, p. 53.— 

 DuMERiL and Biijron, Erp. G«5n., IV, 1837, p. 321.— Gray, Cat. Spec. Liz. 

 Coll. Brit. Mus., 1845, p. 228.— Aug. Dumeril, Cat. Mc'th. Coll. Kept. Paris, 

 1851, p. 78.— Ch. Gikard, Stausbnry's Expl. Vail. Gr. Salt Lake, Utah, 1852, 

 p. 359.— SuMicnRAST, Arch. Sc. Phys. Math., XIX, 18G4, p. 60. 



Tapayaxin, LacertKn orbicularis Hernandez, Nov. Plant. Anim. Mm. Mex., 1651, 

 C. XVI, p. 327, fig. 



Tapaya orhioiilaris Cuvier, Reg. Auim., II, 1817, p. 35; 2d ed. II, 1829, p. 37.— 

 GiRARD, U. S. Expl. Ex. (Ch. Wilkes), 1858, p. 394.— Aug. Dumeril and 

 BocoURT, Miss. Sci. an Mexique et dans TAmerique Centrale, Pt. 1, 1870, 

 pi. XI, fig. 1; Pt.3, 1874, p. 22i. 



Phrynosoma wiegmannii Gray, Zool. Beechey's Voy., 1839, p. 96. 



Head thick, wider than h)ng. Cephalic spines average length; those 

 of the occiput horizontal and a little more prolonged backward than 

 the longest temporal ones. Two rather large tubercles back of the 

 occipital plate. Abdominal scales smooth and Sfjnare. • 



Length of liead from the end of the snout to the extremity of one of 

 the occipital points eciual to its greatest width; width of head double 

 the space between the superciliary borders; sublabial plates pointing 

 backward, rather larger than tlie inframaxillary .scutelhi ; the latter, 

 rectangular in form, are arranged in a row under each l)raMch of the 

 lower jaw; a conical, pyramidal scale at the Junction of the lips; nos- 

 NAT MUS 98 27 



