Comparative osteology of the fossorial frogs of the genus Synapturanus (Anura, Microhylidae) with the description of three new species from the Eastern Guiana Shield

Autor(es):Mostrar menos -

Fouquet, Antoine ^[1] ; Leblanc, Killian ^[1] ; Fabre, Anne-Claire ^[2] ; Rodrigues, Miguel T. ^[3] ; Menin, Marcelo ^[4] ; Courtois, Elodie A. ^[5] ; Dewynter, Mael ^[6] ; Holting, Monique ^{[7, 8]} ; Ernst, Raffael ^[7] ; Peloso, Pedro ^[9] ; Kok, Philippe J. R. ^{[2, 10]}

Afiliação do(s) autor(es)

^[1] Univ Paul Sabatier, Lab Evolut & Diversite Biol, CNRS, IRD, UMR 5174, Batiment 4R1, 118 Route Narbonne, F-31062 Toulouse 9 - France

^[2] Nat Hist Museum, Dept Life Sci, London SW7 5BD - England

^[3] Univ Sao Paulo, Dept Zool, Inst Biociencias, Sao Paulo, SP - Brazil

^[4] Univ Fed Amazonas, Inst Ciencias Biol, Dept Biol, BR-69080900 Manaus, Amazonas - Brazil

^[5] IRD, LEEISA, Ctr Rech Montabo, 275 Route Montabo, BP 70620, Cayenne 97334 - French Guiana

^[6] La Desiree, F-97351 Matoury - French Guiana

^[7] Senckenberg Nat Hist Collect Dresden, Museum Zool, Dresden - Germany

^[8] Leibniz Inst Anim Biodivers, Zool Res Museum Alexander Koenig, Adenauerallee 160, D-53113 Bonn - Germany

^[9] Univ Fed Para, Inst Ciencias Biol, R Augusto Correa 1, BR-66075110 Belem, Para - Brazil

^[10] Univ Lodz, Fac Biol & Environm Protect, Dept Ecol & Vertebrate Zool, 12-16 Banacha Str, PL-90237 Lodz - Poland

• Tipo de documento: Artigo Científico
• Fonte: ZOOLOGISCHER ANZEIGER; v. 293, p. 46-73, JUL 2021.
• Citações Web of Science: 0

Resumo

The genus Synapturanus includes three nominal species of fossorial Amazonian frogs. A previous study combining molecular, morphological and acoustic data suggested that there may be six times more species than currently recognized. Herein we describe and name three of these new species and compare their osteology. Synapturanus zombie sp. nov. occurs in French Guiana and Amapa (Brazil), Synapturanus mesomorphus sp. nov. in Guyana and adjacent Venezuela, and Synapturanus ajuricaba sp. nov. in the northern part of the Brazilian states of Amazonas and Para. These species are readily differentiated from congeners by a combination of external morphological characters such as body size, development of fringes on fingers and coloration, by advertisement call variables, and by osteological traits. Along with osteological reinforcement of the skull, atlas and scapular region, the reduction of the size of phalanges, more developed fringes on fingers, smaller eyes and larger body size, altogether suggest an overall increase of the fossorial habits in the easternmost species. In contrast, the relatively conserved morphology of the posterior part of the body across the genus suggests that fossoriality mostly involves the anterior part. Furthermore, the fusion of tarsal bones in the species of the western clade may indicate locomotory adaptation to more epigean habits. (C) 2021 Elsevier GmbH. All rights reserved. (AU)

• Processo FAPESP: 03/10335-8 - Sistemática e evolução da herpetofauna neotropical
• Beneficiário: Miguel Trefaut Urbano Rodrigues
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 11/50146-6 - Filogeografia comparada, filogenia, modelagem paleoclimática e taxonomia de répteis e anfíbios neotropicais
• Beneficiário: Miguel Trefaut Urbano Rodrigues
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático