802 



REPORT OF NATIONAL MUSEUM, 1898. 



A Specimen from Fort Webster or Copper Mines shows the stripes 

 on the sides much more distinctly, running through all the dorsal rows 

 anteriorly, and crossed by the indistinct bars already referred to. The 

 contrast between the dark chestnut-brown spots on each side and its 

 deeper center, with the clear yellow of the edges, is very distinct. 

 Beneath yellov?, with the blotches reduced to mere dull spots. 



Santa Rita del Cobre. (Col. J. D. Graham); gastrosteges, 211+2; nrosteges, 101 ; 

 scales, 17; total length, 39J inches; tail, 10| inches. 



Specimens in which the dark cross bands behind the head are very 

 pronounced have been referred by Dr. Stejneger to a distinct subspecies 

 under the name of Z. f. frenatus. It is true that all specimens from 

 west of the Eio Grande exhibit this character, but in Cat. No. 15970 

 from Yuma, Arizona, and Cat. No. 4388 from Lajoya, New Mexico, the 

 spots are absent, save a few traces only. They are, in fact, a persistence 

 of the immature coloration, as is especially conspicuous in tlie type of 

 Z. f. frenatus, where the cross bands are present on tlie greater part 

 of the length. The character is, to my mind, too variable to offer a 

 definition. 



I have met with this species in Texas, where it is abundant. I 

 obtained specimens from near Dallas, Houston, Brenham, Helotes, and. 

 the upper waters of the Guadalupe and the Llano rivers. Those from 

 Dallas, Brenham, and Houston, which are in the rainy region of Texas, 

 have the greater part of the length a blackish-brown. Those froin 

 Helotes, the Guadalupe, and the Llano are entirely pale clay-color 

 This relation of color to moisture is similar to that observed by Dr. 

 J. A. Allen to prevail among the rodent Mammalia. This is a swift 

 species, and is generally known everywhere as the "whip snake." 



This species ranges south into Mexico on the plateau, and southward 

 on the western slope. Thus I have recorded it from Chihuahua, Gua- 

 najuato, and Guadalaxara: 



Zamenia flagellum Shaw. 



Locality. 



Pensacola, Florida 



Columbus, Georgia 



Liberty County, Georgia. 

 Georgetown, South Caro- 

 lina. 



Florida 



Clearwater, Florida 



Gainesville, Florida 



Arlington, Florida 



do 



New Braunfels, Texas 



Ked River, Ark 



Between Indianola and 

 San Antonio, Texas 



Indianola Texas 



Wbeelock, Texas 



Gila and Colorado 



Alamos de Parros 



New Mexico 



do 



Copper Mines, New Mex- 

 ico. 



When 

 collected. 



Oct. —,1879 



May —,1878 

 June — , 1878 



, 1874 



From whom received. 



.Nature of 

 ppecimen. 



Dr. R. W. Jeffrey 



D. Gressner 



Ur. W.L.Jones... 

 Weston 



S.T.Walker 



James Bell 



G. Brown Goode 



do 



Dr. F. Lindh'^imer 



Capt. R. B. Marcy, 



U. S. A. 



Major W. 



U. S. A. 



H. Emory, 



Col. J. D. Graham, 



U. S. A. 

 Lieutenant Couch, U.S. A. 

 Dr. O. Loew 



Maj. W. 



U.S.A. 



H. Emory, 



Alcoholic, 

 do. 

 do. 



do. 



do. 

 Eggs, dry. 

 Cast. 



do. 

 Ale. type. 



do. 



do. 



do. 

 do. 

 do. 



do. 

 do. 

 do. 

 do. 



