title: A second note on the geographical differentiation of Amphisbaena fuliginosa L., 1758 (Squamata, Amphisbaenidae), with a consideration of the forest refuge model of speciation.
abstract: The geographical differentiation of Amphisbaena fuliginosa L. is studied with basis on 220 specimens from 99 definite and 2 generic localities, ranging from Panam  to Puno in Peru and Goi s in Brasil. The pattern found is considered to support Vanzolini's 1951 scheme of five subspecies, defined by color pattern and by four meristic characters, and differentiated in consequence of Quaternary paleoecological events. Recent developments relating to models of differentiation in Quaternary tropical South America are briefly considered.
authors.affiliation: Museu de Zoologia da Universidade de São Paulo, 4299-970 São Paulo, SP, Brasil. vanzo@usp.br
authors.forename: Paulo Emilio
authors.initials: PE
authors.lastname: Vanzolini
mesh_terms: D000818:Animals; D002489:Central America; D003116:Color; D017753:Ecosystem; D005260:Female; D008297:Male; D012911:Snakes / Q000033:anatomy & histology / Q000145:classification*; D013020:South America