The venomous coral snakes (genus Micrurus) of Costa Rica

Bibliographic Details
Main Authors: Savage, Jay M., Vial, James L.
Format: Online
Language:eng
Published: Universidad de Costa Rica 1973
Online Access:https://revistas.ucr.ac.cr/index.php/rbt/article/view/27283
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spelling RBT272832023-09-14T21:06:35Z The venomous coral snakes (genus Micrurus) of Costa Rica The venomous coral snakes (genus Micrurus) of Costa Rica Savage, Jay M. Vial, James L. Four species of venomous coral snakes (Micrurus) occur in Costa Rica. The single bicolor species, M. mipartitus has previously been defined as two subspecies; however, variations in diagnostic characters clemonstrate dinal shift that precludes recognition of geographic races.Presence of the tricolor M. clarki is concluded from but a single Costa Rican specimen, although the species is otherwise definitely known from adjacent areas in Panamá.Variation among tricolor coral snakes allied to M. nigrocinctus suggests the presence of three populations that occupy southwestern Pacific Costa Rica, northwestern Pacific Costa Rica and western Nicaragua, and Atlantic lowland Costa Rica. Gradual intergradation in the Pacific lowlanels, as well as more complex intergrading patterns in the Meseta Central and Arenal regions and over a broad arca of Nicaragua, eliminate the value of subspecific designations. Where M. nigrocinctus occurs sympatrically with populations of the closely related M. alleni, they can be constently distinguished by differences in head cap patterns and segmental counts.Micrurus alleni is composed of three allopatric populations in the Atlantic lowlands of Costa Rica anel Nicaragua, the southwestern Pacific lowlands of Costa Rica and adjacent southwestern Panama, and Pacific lowland Darién in eastern Panama. Becaust of limited information on variation among these populations we prefer not to apply the trinomials. Universidad de Costa Rica 1973-07-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/27283 Revista de Biología Tropical; Vol. 21 No. 2 (1973): Volume 21 - Regular number 2 - July 1973; 295–349 Revista de Biología Tropical; Vol. 21 Núm. 2 (1973): Volumen 21 - Número regular 2 - Julio 1973; 295–349 Revista Biología Tropical; Vol. 21 N.º 2 (1973): Volume 21 - Regular number 2 - July 1973; 295–349 2215-2075 0034-7744 10.15517/rbt.v21i2 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/27283/27390 Copyright (c) 1973 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0
institution Universidad de Costa Rica
collection Revista de Biología Tropical
language eng
format Online
author Savage, Jay M.
Vial, James L.
spellingShingle Savage, Jay M.
Vial, James L.
The venomous coral snakes (genus Micrurus) of Costa Rica
author_facet Savage, Jay M.
Vial, James L.
author_sort Savage, Jay M.
title The venomous coral snakes (genus Micrurus) of Costa Rica
title_short The venomous coral snakes (genus Micrurus) of Costa Rica
title_full The venomous coral snakes (genus Micrurus) of Costa Rica
title_fullStr The venomous coral snakes (genus Micrurus) of Costa Rica
title_full_unstemmed The venomous coral snakes (genus Micrurus) of Costa Rica
title_sort venomous coral snakes (genus micrurus) of costa rica
title_alt The venomous coral snakes (genus Micrurus) of Costa Rica
publisher Universidad de Costa Rica
publishDate 1973
url https://revistas.ucr.ac.cr/index.php/rbt/article/view/27283
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