486 NOTES ON SCELOPORUS VARIABILIS — STEJNEGER. 



is coucerued. Garmau (List of N. A. Eept. and Batr., 1884, p. 17) shifts 

 the locality still further west by assigning S. marmoratus to ^' Southern 

 California." 



The only other American author referring to it under the name of 8. 

 marmoratus is Yarrow, who, in his Check-list of ^orth American Eeptilia 

 and Batrachia (p. 58, 1883), refers to it two specimens, one (No. 4116) 

 from " Redmond's Ranch, Rio Grande," the same mentioned by Pro- 

 fessor Baird {loe. cit.), and another (No. 2885) from ^' San Diego, Califor- 

 nia." The latter specimen is correctly identified, but the statement as to 

 the locality involves a double error, for, in the first place, the original 

 No, 2885 did not come from San Diego, California, but from San Diego, 

 Nuevo Leon, Mexico, and in the second place this specimen is not at all 

 No. 2885, but a much more valuable one, as attested by the original 

 j)archmeut label which is still firmly attached to it, for it is nothing 

 less than the type specimen of Hallowell's tSceloporus delicatissimus, 

 which was thought to have been lost. 



It was the examination of this specimen that proved to me conclu- 

 sively that 8. marmoratus is nothing but a synonym of Sceloporus 

 variabilis of Wiegmann. 



The latter name has but recently been introduced in the herpetolog- 

 ical works as occurring within the United States. Boulenger in the 

 third volume of the Catalogue of Lizards in the British Museum (1887, 

 p. 503) mentions three specimens from " Duval County, Texas," collected 

 by W. Taylor, Esq., and Cope, about simultaneously (Proc. U. S. Nat. 

 Mus., 1888, p. 397), records nine specimens as belonging to the National 

 Museum from the same source.* He adds : " First found in the United 

 States near Corpus Christi, by Francis Aaron," but as 8, marmoratus 

 is the same as variabilis the species was found within the United 

 States long before it was collected by Mr. Aaron. 



The identification of 8. marmoratus with variabilis extends the known 

 range of the hitter considerably, as San Antonio, whence came the type, 

 is situated about 120 miles north of San Diego and Corpus Christi. 

 The species does not seem to be rare even so far north, for we have, in 

 addition to the type of >S'. delicatissimns, another specimen, a female from 

 Medina, the county on the southwest of Bexar, as well as a female col- 

 lected by Mr. G. W. Marnock at Helotes, in the latter county. Both of 

 these specimens I found labeled " Sceloporus scalaris " (and the first one 

 is so recorded by Yarrow, Bull. U. S. Nat. Mus., No. 24, p. 62), with which 

 species there is no good reason for confounding them. However, Pro- 

 fessor Cope (Zool. Pos. Texas, j). 17) states that 8. scalaris " is abundant 

 in the region southwest of San Antonio, according to Mr. Marnock, 

 from whom I obtained specimens," and it may therefore be that both 

 species occur there, though our Museum possesses no specimen of true 



■* Of these I have beeu unable to find more than two specimens in the collections of 

 theMnsonm, and only these are, therefore, included in the list of specimens examined 

 given below. 



