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Master's Dissertation
DOI
https://doi.org/10.11606/D.87.2010.tde-30082010-120834
Document
Author
Full name
Roberto Hiroaki Nagahama
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2010
Supervisor
Committee
Bertani, Rogério (President)
Silva Junior, Pedro Ismael da
Silva, Thomaz Augusto Alves da Rocha e
Title in Portuguese
Revisão e análise cladística do gênero Plesiopelma Pocock, 1901 (Araneae, Theraphosidae).
Keywords in Portuguese
Aracnídeos
Araneae
Aranhas
Biodiversidade
Invertebrados (classificação)
Zoologia (classificação)
Abstract in Portuguese
O gênero Plesiopelma Pocock, 1901 é revisado taxonomicamente e realizada análise cladística de suas espécies. A matriz com 30 táxons terminais e 49 caracteres foi analisada com dois programas para reconstrução filogenética, considerando tanto caracteres aditivos como não-aditivos. As quatro análises apresentaram diferenças na topologia, porém três delas demonstram que Plesiopelma é um gênero monofilético. A diagnose e a distribuição geográfica das espécies são apresentadas. São consideradas válidas as espécies P. flavohirtum (Simon, 1889), P. semiaurantiacum (Simon, 1897),P. myodes Pocock, 1901, P. insulare (Mello-Leitão, 1923), P. physopus (Mello-Leitão, 1926), P. minense (Mello-Leitão, 1943) e P. simoni (Soares e Camargo, 1948). É proposta a sinonímia de P. rectimanum (Mello-Leitão, 1923) e P. longisternale (Schiapelli e Gerschman, 1942) com P. myodes. São reconhecidas seis espécies novas para o Brasil. É proposta a transferência de P. imperatrix Piza, 1976 para o gênero Megaphobema Pocock, 1901 e P. gertschi (Caporiacco, 1955) é considerada Incertae sedis.
Title in English
Revision and cladistic analysis of the genus Plesiopelma pocock, 1901 (Araneae, Theraphosidae).
Keywords in English
Arachnids
Araneae
Biodiversity
Invertebrates (classification)
Spiders
Zoology (classification)
Abstract in English
The genus Plesiopelma Pocock, 1901 is taxonomically revised and a cladistic analysis of its species is done. The matrix with 30 terminal taxa and 49 characters was analysed with two programs for phylogenetic reconstruction. The four analyses showed different topologies on the internal group, however, three of them show Plesiopelma being a monophyletic genus. The diagnoses and geographic distribution of all species are presented. It is herein considered valid the species P. flavohirtum (Simon, 1889), P. semiaurantiacum (Simon, 1897), P. myodes Pocock, 1901, P. insulare (Mello-Leitão, 1923), P. physopus (Mello-Leitão, 1926), P. minense (Mello-Leitão, 1943) and P. simoni (Soares e Camargo, 1948). The species P. rectimanum (Mello-Leitão, 1923) and P. longisternale (Schiapelli & Gerschman, 1942) are considered junior-synonyms of P. myodes. It is recognized six new species from Brazil. It is proposed the transfer of P. imperatrix Piza, 1976 to Megaphobema Pocock, 1901 and P. gertschi (Caporiacco, 1955) is considered Incertae sedis.
 
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Publishing Date
2010-09-16
 
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