The Submandibular Musculature of Phyllomedusinae (Anura: Hylidae): A Reappraisal

Autor(es)

Faivovich, J. ^[1] ; Baeta, D. ^[2] ; Vera Candioti, F. ^[3] ; Haddad, C. F. B. ^[4] ; Tyler, M. J. ^[5]

Afiliação do(s) autor(es)

^[1] Consejo Nacl Invest Cient & Tecn, Museo Argentino Ciencias Nat, Div Herpetol, RA-1033 Buenos Aires, DF - Argentina

^[2] Univ Fed Rio de Janeiro, Museu Nacl, Dept Vertebrados, Setor Herpetol, Rio De Janeiro - Brazil

^[3] Fdn Miguel Lillo, CONICET Inst Herpetol, San Miguel De Tucuman - Argentina

^[4] Univ Estadual Paulista, IB, Dept Zool, Sao Paulo - Brazil

^[5] Univ Adelaide, Sch Earth & Environm Sci, Dept Ecol & Evolutionary Biol, Adelaide, SA 5005 - Australia

• Tipo de documento: Artigo Científico
• Fonte: Journal of Morphology; v. 272, n. 3, p. 354-362, MAR 2011.
• Citações Web of Science: 5

Resumo

The submandibular musculature of 37 species of the five currently recognized genera of the subfamily Phyllomedusinae (Anura: Hylidae) is described; observations are made on the variation and ontogeny of these muscles. Supplementary apical elements of the m. intermandibularis occur in all phyllomedusines studied, in addition to the supplementary posterolateral elements previously reported. Our observations are discussed in the context of 1) the proposed homology between supplementary apical and posterolateral elements; 2) the homology with the apical elements reported for Pelodryadinae (sister taxon of Phyllomedusinae); and 3) the implications for our understanding of the relationships between Phyllomedusinae and Pelodryadinae. Anatomical differences between the apical and posterolateral elements and their co-occurrence in phyllomedusines indicate that these supplementary elements are not homologous. Despite differences between phyllomedusines and pelodryadines in the adhesion of supplementary fibers to the principal element of the m. intermandibularis and the occurrence of a broad aponeurosis or a medial raphe, the extensive morphological and developmental resemblances of the apical elements indicate that these structures are homologous, and that the presence of apical elements is a synapomorphy of Phyllomedusinae + Pelodryadinae. J. Morphol. 272: 354-362, 2011. (C) 2011 Wiley-Liss, Inc. (AU)

• Processo FAPESP: 01/13341-3 - Diversidade de anfíbios anuros do estado de São Paulo
• Beneficiário: Célio Fernando Baptista Haddad
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 05/56756-0 - Estudos filogenéticos com hilídeos: do tronco até as pontas dos ramos
• Beneficiário: Julian Faivovich
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores
• Processo FAPESP: 08/50928-1 - Especiação de anfíbios anuros em ambientes de altitude
• Beneficiário: Célio Fernando Baptista Haddad
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 06/52088-5 - Phylogenetic studies on hylid frogs: from the trunk to the tips
• Beneficiário: Julian Faivovich
• Modalidade de apoio: Bolsas no Brasil - Jovens Pesquisadores