CHECKLIST OF REPTILES OF MEXICO 195 



KEY TO MEXICAN SPECIES OF CELESTUS 



1. Median prefrontal in contact with 2 supraoculars, wider than long; no lateral 



prefrontals (fused with median loreal); 2 dorsolateral light stripes in adults 



separated by 4 and 2 half scale rows atitlanensis (p. 195) 



Median prefrontal in contact only with anterior supraocular, as long as wide; 

 small lateral prefrontals usually present; adults not with 2 dorsolateral light 

 stripes 2 



2. Snout normal, not especially elongate or flattened; lamellae under fourth toe, 



15-18; scales in 33-35 rows; first labial reaching to middle of naris; distance 

 between anterior and posterior loreals less than the length of either; no ver- 

 tical light bars on sides in young or adults enneagrammus (p. 195) 



Snout flattened, elongate; lamellae under fourth toe, 23-26; scales in 31-33 

 rows; first labial reaching to anterior border of naris; distance between an- 

 terior and posterior loreals as great or greater than length of either; vertical 

 light bars present on sides in young and adults rozellae (p. 195) 



CELESTUS ROZELLAE Smith 



Diploglossus steindachneri, Guntheb {nee Cope), Biologia Central!- Americana, 



Reptilia and Batrachia, 1885, p. 34, pi. 22, fig. A. 

 Celestus rozellae Smith, Proc. U. S. Nat. Mus., vol. 92, 1942, pp. 372-374. 



TVpe.— U.S.N.M. No. 113526; Rozella Smith collector. 



Type locality. — Palenque, Chiapas. 



Range. — Atlantic slopes, presumably from the Isthmus of Tehuan- 

 tepec to British Honduras. Recorded in Mexico only from the type 

 locality. 



CELESTUS ATITLANENSIS Smith, new species i 



Diploglossus (Celestus) steindachneri, Bocourt (nee Cope), Mission scientifique 

 au Mexique . . . , Etudes sur les reptiles, livr. 6, 1879, pp. 383-384, pi. 22, 

 fig. 3. 



Type. — Mus. Hist. Nat. Paris, specimen figured as above. 



Type locality. — Atitlan, Guatemala. 



Range. — Known only from the type specimen from Atitlan, Guate- 

 mala, but probably occurring along Pacific slopes from Chiapas to 

 Nicaragua. 



CELESTUS ENNEAGRAMMUS (Cope) 



Siderolamprus enneagrammus Cope, Proc. Acad. Nat. Sci. Philadelphia, 1860, 

 p. 368. 



Celestus enneagrammus, Cope, U. S. Nat. Mus. Bull. 32, 1887, p. 43; Ann. Rep. 

 U. S. Nat. Mus., 1898 (1900), pp. 504-505.— Smith, Proc. U. S. Nat. Mus., 

 vol. 92, 1942, pp. 370-372, 374. 



Diploglossus steindachneri Cope, Proc. Acad. Nat. Sci. Philadelphia, 1864, p. 179 

 (type locality, Orizaba, Veracruz; U.S.N.M. No. 6342). — Boulenger, Cata- 

 logue of the lizards in the British Museum, vol. 2, 1885, p. 293. 



* Diagnosis. — Allied to C. enneagrammus and C. rozellae, but with median prefrontal in contact with two 

 (instead of one) supraoculars, no lateral prefrontals (presumably fused to median loreals), a very broad 

 median prefrontal (broader than long), and a pattern in the single known adult (112 mm. snout to vent) 

 consisting of two dorsolateral light stripes separating three broad dark stripes from each other. Similar to 

 C. bisittatiis Boulenger but with three loreals instead of two, seven supralabials to a point below middle of 

 eye instead of six. — H. M. S, 



