NO. 1282. REPTILES OF HUA CHUG A MO UNTA INS—STEJNEGER 157 



of smooth scales; three pairs of scales between posterior chin-shields 

 and ventrals; ventrals 152; anal divided; 40 caudals (tail defective). 



Color (in alcohol) very pale brownish gra}", without stripes, lighter 

 underneath; top of head dark brownish gray, the dark color barely 

 encircling the eyes and descending broadly to the connnissure at the 

 suture between the sixth and seventh supralabials; a white semicoliar 

 just behind the parietals taking in their extreme posterior angle, two 

 scales wide, followed ])y a dark-brownish grav band only one and a 

 half scales wide. 



Total length 184 mm.; tail (defective) 40 mm. 



Remarls. — This new species, which 1 take pleasure in naming for its 

 discoverer. Col. Timothy E. Wilcox, surgeon, U. S. A., seems to be 

 more nearly related to TantiUa melanocephala^ distributed in various 

 forms through Central and South America, than to any of the other 

 species hitherto found in the United States. It has the same wide 

 head distinctly set off from the neck as well as the large eye, but the 

 frontal appears to be longer, and the first pair of infralabials are sepa- 

 rated l)v the mental. The coloration of the head is also very different, 

 resembling as it does, superticially that of T. coronata. It is probabl}' 

 the same species to which Mr. van Denburgh refers under the name 

 of T. coronata^ a specimen collected by Mr. Price, also near Huachuca,^ 

 but the true T. conmata has a differently shaped head, more com- 

 pressed and tapering in front of the eyes and less wide across the 

 temples, nuich smaller eyes and smaller supraoculars. The coloration 

 of the head is slightly different also, inasmuch as the dark collar is 

 wider in the latter and the supralabials are dark colored in front of 

 the eye. light behind. 



Now that Giinther has described Bocourt's Mexican Ilomalocranion 

 coronatiuii as II. hocourti;- it seems probable that T. coronata does not 

 occur in Mexico at all. It would then be interesting to know what is 

 Garman's T. coronata, from San Luis Potosi.^ 



TRIMORPHODON LYROPHANES Cope. 



A single specimen (No. 19673) was obtained at the fort by Dr. Wilcox 

 in 1892. It has 22 scale rows and 9 supralabials. 



This species has been taken in other places in southern Arizona, viz, 

 by Henshaw (No. 8760) in October, 1874, and ])y Dr. Irwin at Fort 

 Buchanan (No. 5283). 



ELAPS EURYXANTHUS Kennicott. 



Of this very interesting snake there is a specimen (No. 17790) from 

 the immediate vicinity of the fort at Huachuca, collected by Dr. 

 Wilcox, while Dr. Fisher's collection contains a specimen from Fort 

 Bowie (No. 22194). 



1 Proc. Cal. Acad. Sci. (2), VI, August 18, 1896, p. 346. 



2 Biol. Centr.-Amer., Kept., p. 149. 

 'Bull. Ess. Inst, XIX, 1887, p. 128. 



