200 BULLETIN 18 7, UNITED STATES NATIONAL MUSEUM 



SPECIES INQUIRENDAE 



ANOMALEPIS MEXICANUS Jan 



Anomalepis mexicanus Jan, Iconographie g6n6rale, livr. 1, 1860, pi. 5, fig. 1. — 

 Taylor, Proc. New England Zool. Club, vol. 17, 1939, pp. 93-94.— Dunn, Bull. 

 Mus. Comp. Zool., vol. 87, 1941, pp. 511-526. 



Type. — Milan Mus. 



Type locality. — Stated "Mexico." 



Remarks. — This snake is not definitely known from Mexico. Dunn 

 believes that it is not a Mexican species or, in any event, that it is 

 the same as specimens known from Panama and referred by Taylor to 

 A. dentatus. Taylor regards the original description of mexicanus as 

 unidentifiable with either of the two species {A. dentatus from 

 Panama and A. aspmosus from Peru) now known. 



DIPSAS BERTHOLDI (Jan) 



Bihon Bertholdi Jan. Elenco sistematico degli Ofidi, 18G3, p. 103 ; Iconographie 

 gto^rale des ophidieus, livr. 38, 1878, pi. 5, fig. 3. — Boui.engek, Catalogue of 

 the snakes in the British Museum, vol. 3, 1896, p. 81. 



Type. — Originally in Gottingen Museum, now lost. 

 Type locality. — Unknown. 



Remarks. — This is possibly a Mexican species. It remains unknown 

 save from Jan's descriptions. 



ERYTHROLAMPRUS AESCULAPII (Linnaeus) 



Coluber aesculapli Linnaeus, Systema naturae, ed. 10, vol. 1, 1758, p. 220. 

 Erythrolamprus aesculapli Dumeeil, Bibkon, and Dumeeil, Erp^tologie g6n6rale, 



vol. 7, pt. 2, 1854, pp. 845-850. 

 Erythrolampriis vemistissimus var. D GtJNTHEK, Catalogue of the snakes in the 



British Museum, 1858, pp. 47-48 (Mexico?). 

 ErytJirolampj-us venustissimtis Bocoukt, Mission scientifique ou Mexique et 



dans I'Am^rique centrale, Kept., livr. 10, 18S6, pp. 658-660, pi. 38, fig. 4 



("Mexico"). 

 Erythrolamprus bizona Jan, Arch. Zool. Anat. Fis., vol. 2, 1863, pp. 314-315 (type 



locality, "Mexico, Popayan, Cayenne, Brasil, Montevideo, Colombia" ; types in 



various museums). 

 Erythrolamprus guenthcri Qaeman, Mem. Mus. Comp. Zool., vol. 8, 1883, p. 154 



(type locality, "Mexico"; type in Brit. Mus. Nat. Hist. [=E. venustisshnus 



var. D Giinther]). 



Type. — Unknown. 



Type locality. — Unknown. 



Remarks. — The occurrence of Erythrolamprus in Mexico is yet to 

 be verified, although numerous specimens of this its northernmost 

 species are known from Nicaragua and other areas southward to 

 Bolivia. North of Nicaragua no authentic records are known. 



