CROCODILIANS, LIZARDS, AND SNAKES. 



745 



scales, counted obliquely; in Cat. No. 8427 it covers tliree. In Cat. 

 No. 8599 it is only present on the side of the neck, and in Cat. Nos. 

 2064 and 10027 it is wanting. Cat. No. 2064 has eight superior labials. 

 The scuta and measurements given by Baird and Girard are: 



Sonora, Mexico ; gastiosteges, 2'M + 1 ; urosteges, 58 ; total length, 22| iucbes ; tail, 

 3| inches. 



Diadophis regalis regalis liaird and Girard. 



Catalogae 

 No. 



2064 

 10627 



10628 

 2067 

 8019 

 8427 

 8599 

 21061 

 22376 



Number 

 of speci- 

 mens. 



Locality. 



Sonora, Mexico 



Eagle Spring, Texas 

 Port Davis, Texas . . 



do 



Santa Magdalena , 



Camp Grant, Arizona 



Camp Apache, Arizona. . . 



Utah 



Fort Huachuca, Arizona , 

 MesiUa Valley, NewMex- 



When 

 collected. 



July — , 1878 

 do 



From whom received. 



Col. J. D. Graham, U . S. A 



Ma.i. W. H. Emorv.TJ.S.A 



Hospital Steward W. F. 



von Manteufel, U. S. A. 



do 



Oct. 11,1893 



E. Palmer 



H. W. Henshaw . . . 

 Dr. H. C. Yarrow. . 



Holzner 



T.D.A.CockereU. 



Nature of 

 specimen . 



Alcoholic 



type. 

 Alcoholic, 

 do. 



do. 

 do. 

 do. 

 do. 

 do. 



I have this subspecies from Lake Valley, New Mexico, and Professor 

 Snow took it near Socorro, New Mexico, farther north. 



DIADOPHIS REGALIS ARNYI Kennicott. 



Diadophis arnyi Kennicott, Proc. Acad. Nat. Sci. Phila., 1859, p. 99. — Cope 



Check-list, N. A. Batr. Kept., 1875, p. 38. 

 Diadophis punctatus arnyi Cope, Bull. U. S. Nat. Mus., No. 32, 1887, ji. 80. 



Form slender, head little distinct from body. Body above uniform 

 leaden black, the crown scarcely darker; abdomen yellow, thickly and 

 irregularly spotted with black, 

 the spots more numerous than 

 in D. clocilis, and extending to 

 some distance behind the anus; 

 head beneath thickly mottled 

 With black spots of much 

 smaller size than those on the 

 abdomen. A narrow, light yel- 

 low, occipital ring, one to one 

 and a half scales wide. Dorsal 

 scales in seventeen rows. 



Kesembles D. r. regalis, from 

 which it will be distinguished 

 by the color; also the D. ama- 

 bilis, which has a more slender body and generally narrower head. It 

 is distinguished from this and the forms of D. j)unviatus by the larger 

 number of dorsal rows of scales. 



The distribution of this form is wide, extending from Ohio (Cat. No. 

 10086) to Arizona and Vera Cruz. No specimen has been sent from 



Fig. 156. 



Diadophis regalis aenyi Kennicott. 



X1.5. 



Cat. No. 8427, U.S.N.M. 



