308 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ns 



In color and scutellation the few Zuni specimens do not deviate 

 appreciably from M. t. taeniatus as defined by Ortenbm-ger (1928, 

 pp. 25-35) ; however, two juveniles, 525 and 672 mm. in total length, 

 lack the usual reddish suffusion on the subcaudal surface and have 

 clear, undivided, dorsolateral white stripes on the posterior half 

 of the body. Three individuals were collected or observed in the 

 piny on- juniper savanna, and one came from the cholla-juniper asso- 

 ciation. Judging from sight records, this whipsnake is more abundant 

 in open Roughlands envkonments than the number of museum 

 specimens indicates. The species is particularly adept at escaping 

 capture. 



Locality records: 



VALENCIA CO.: 5 mi. E. Grants (CU 3052); 10.4 mi. S. Grants (CU 5602); 

 MCKINLEY CO.: Nutda (USNM 8432). 



Salvadora grahamiae grahamiae Baird and Girard 



Records of S. g. grahamiae on the southeastern edge of the Zuni 

 Mountains and at Santa Rosa, Guadalupe County, New Mexico 

 (Bogert, 1939, p. 189), provide the northernmost stations for this 

 species in the United States. Mountain patch-nosed snakes were 

 reported previously from Valencia County by Charles M. Bogert 

 (see Wright and Wright, 1957, p. 649), who informed me (in litt.) 

 that he examined a specimen taken one mile east of Laguna. 



The present Zuni specimens are from 6400 feet in a choll a- juniper- 

 dominated section of the Plains-Roughlands continuum. Both have 

 a high number of ventral scales, 199 and 196 for the male and female 

 respectively; subcaudals are 100 and 97, dorsal scale rows are 19-17-13, 

 and the labials are 9/9 except for 8 in the left upper series of the 

 female. The smaller male has no trace of lateral dark stripes, and 

 its dorsal stripes disappear on the basal third of the taU. The female 

 has definite, dark lateral stripes that become diffuse at the anus. 



Hartweg (1940) noted that one of two specimens from near Mim- 

 bres, Grant County, New Mexico, lacked the lateral stripes, as did 

 specimens from Trans-Pecos, Texas, and southeastern Arizona. 

 Stebbins (1954, p. 501) stated that Bogert had seen intermediates 

 between S. g. grahamiae and S. g. lineata (sometimes considered 

 a distinct species) in southern Chihuahua and Durango, Mexico. 

 I examined a specimen (UMMZ 118446) from near Sombrerete, 

 Zacatecas, Mexico, that was also intermediate. Thus, it seems 

 that the two races intergrade over an unusually broad area, or that 

 polychromatism exists; I favor the latter explanation. 



Locality records: 



VALENCIA CO.: 10.4 mi. S. Grants (CU 5655). 



