: 
; 
PROCEEDINGS OF THE UNITED STATES NATIONAL MUSEUM 
: SMITHSONIAN INSTITUTION 
U. S. NATIONAL MUSEUM 
Vol. 92 Washington: 1942 No. 3153 
MEXICAN HERPETOLOGICAL MISCELLANY 
By Hopsart M. Smiru 
Sruptes on the reptiles from Mexico in the United States National 
Museum have brought to light a number of unnamed aces and spe- 
cies. Some of them have been diagnosed elsewhere, and the present 
compilation includes the remaining notes that appear worthy of pre- 
liminary publication in advance of the contemplated complete sum- 
mary. <A large portion of the material on which the present notes 
are based was collected and studied during my tenure of the Walter 
Rathbone Bacon Traveling Scholarship of the Smithsonian Insti- 
tution, to whose authorities I am greatly indebted. 
The following notes have been segregated under nine subtitles 9 ae 
1.—Six new species and subspecies of Sceloporus, with a redefinition ‘of the’ . 
formosus group. 
2—A new horned lizard from Durango. é 
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3.—A tentative arrangement and key to Mexican Gerrhonotus, with the de- has 
scription of a new race. 
4.—An unnamed Celestus from Mexico, with a key to mainland species of 
the genus. 
5.—New xantusiid lizards. 
6.—The Mexican subspecies of Drymobius margaritiferus. 
7.—Notes on Mexican Imantodes. 
8.—Two new snakes of the genus Clelia. 
9.—Additional notes on Conophis. 
1—SIX NEW SPECIES AND SUBSPECIES OF SCELOPORUS, WITH A 
REDEFINITION OF THE FORMOSUS GROUP 
Material recently ened’ in Mexico, particularly by my wife and 
me in 1939 and 1940, during my tenure of the Walter Rathbone. 
Bacon Traveling Scholarship of the Smithsonian’ Institution, on 
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