Checklist • 



As noted above, fifty-three species appear in this checklist, summarizing changes in Tantilla 

 systematics to the date 28 February 1999. The format of the species accounts includes the 

 following sections: species synonymy (including current name and its synonyms), holotype (if 

 known) or lectotype, type locality (including any valid restriction), distribution (elevational and 

 geographic), systematic references (containing the most recent and/or comprehensive 

 treatments); remarks (containing systematic information of pertinence, if necessary). 



Tantilla albiceps Barbour 

 Tantilla albiceps B&rhouT, 1925: 156. 



Holotype. — Museum of Comparative Zoology, Harvard University (MCZ) 20600, adult 

 (?) male, collected by Thomas Barbour in February, 1925. 



Type-locality. — Barro Colorado Island, Gatun Lake, Canal Zone, Panama. 



Distribution. — Known only from the type locality. 



Systematic references. — Wilson (1982b, 1985b). 



Remarks — This species continues to be known from a single specimen. Its relationships 

 within the genus are unclear. 



Tantilla alticola (Boulenger) 

 Homalocranium allicolaBoulQngtT, 1903: 353. 

 Homalocranium coralliventre Boulenger, 1913: 1 03 5 . 

 Tantilla costaricensis Taylor, 1954: 766 



Syntypes. — British Museum of Natural Histor>' (BMNH) 1946. 1.8.63-65 (formeriy 

 BMNH 98. 10.27.7-9), first two males, third apparently a female, collected by A. E. Pratt (date 

 of collection unknown; accessioned 27 October 1898). 



Type-locality. — Santa Rita, north of Medellin, 9000 ft. (2743 m), Depto. Antioquia, 

 Colombia. 



Distribution — Low to intermediate elevations (91-2743 m) of Nicaragua, Costa Rica, and 

 northwestern Colombia. 



Systematicreferences. — Wilson (1982b, 1986a, 1987a). 



Tantilla andinista Wilson and Mena 

 Tantilla andinista Wilson and Mena, 1980: 21 . 



Holotype. — University of Kansas Museum of Natural History (KU) 135209, adult female, 

 collected 9 June 1970 by Thomas H Fritts. 



Type-locality. — 5 km E Alausi, elevation 2600-2750 m, Prov. Chimborazo, Ecuador. 



Distribution — Known only from the type locality. 



Systematic references. — Wilson and Mena (1980); Wilson (1985c, 1987a). 



Remarks. — This ta.xon is still known from but a single specimen 



