374 PROCEEDINGS OF THE NATIONAL MUSEUM VOL, 92 
KEY TO MAINLAND CELESTUS 
1. Three prefrontals in contact with frontal”; green above, lighter on sides 
CGE2 C0 0 1086) pes a a a a ae a a ed montanus 
Only one prefrontal in' contact with frontalas2222 2 eee eee eee 2 
2. Two loreals; prefrontal in contact with two supraoculars; 6 labials to below 
middle of eye; a broad dorsolateral light stripe; sides uniform dark, in 
VOUNGS2 sos ae eo ee ee eo eee bivittatus 
Three or more loreals (the median may be fused with another scale, the lateral 
prefrontal), or, if only two, prefrontal separated from second supraocular. 3 
3. Postnasals followed by two pairs of Superimposed loreals; ‘frontal twice as 
wide as long; four external and four internal supraorbitals”__ cyanochloris 
Postnasals followed by two or three loreals, not paired; frontal much longer 
than: broad’; five inner supraoculars, three outer=—-_—--=-- === 4 
4. First labial reaching to middle of naris; distance between anterior and pos- 
terior loreals less than the length of either; no vertical light bars on sides 
inwyoOungOr adults Skee Looe ee ee ee ees enneagrammus 
First labial reaching to anterior border of naris; distance between anterior 
and posterior loreals practically aS great as, or greater than, the length of 
either; vertical light bars present on sides in young and adults____ rozellae 
5.—NEW XANTUSIID LIZARDS 
The collections obtained in Mexico through the aid of the Walter 
Rathbone Bacon Traveling Scholarship in 1938 to 1940 have revealed 
the existence of two previously unknown species of Gazgeia, and an 
undescribed race of Lepidophyma. Specimens previously collected 
for the United States National Museum by E. W. Nelson and FE. A. 
Goldman include still another unnamed race of Lepidophyma, mak- 
ing a total of four species and subspecies of each genus in Mexico. 
GAIGEIA DONTOMASI, new species 
Holotype.—U.S.N.M. No. 111473, an adult female from Lachiguiri, 
Oaxaca, at 7,100 feet, collected by Thomas MacDougall, January 
20, 1940. 
Paratype.—No. 111474, a topotype, same collection data as the 
holotype. 
Diagnosis —Dorsal whorls three to a caudal segment, ventral 
whorls two; scales on body of nearly equal size; no distinctly en- 
larged, keeled scales on thigh; four or five rows of granules middor- 
sally; three temporals, the anterior half as large to as large as the 
posterior; enlarged scales in paravertebral rows separated from each 
other by an average of two scales. 
Description of holotype—WHead and body somewhat flattened; 
length of portion of rostral visible from above considerably greater 
than its distance from frontonasal; nasals in contact medially behind 
* This is also true of nuchalis Boulenger (Proc. Zool. Soc. London, 1898, p. 920, pl. 56, 
fig. 1) from an unknown locality. 
