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Conquiliomorfologia de Tamayoa (Tamayops) banghaasi (Thiele) (Gastropoda, Systrophiidae)

Conchomorphological aspects of Tamayoa (Tamayops) banghaasi (Thiele) (Gastropoda, Systrophiidae) as a contribution to Systrophiidae systematic

Resumo

Thirty shells of Tamayoa (Tamayops) banghaasi (Thiele, 1927) from Ilha Grande, Rio de Janeiro, were analyzed with a stereomicroscop showing the following characteristics: discoid shell, without macrosculptures; ovate-lunate aperture without teeth. Thin, sharp and not-reflected lip; umbilicus with 1/5 of the shell's diameter; impressed suture, total whorls from 4 to 5.5; protoconch with 1.5 to 2 whorls; yellowish-amber, translucent and glossy periostracum. The morphology of the shells were discussed, as well as the shell's dimensions. The conchomorphological patterns are important for systematic studies of mollusks and this work presents data that can be used in future studies about the family.

Systrophiidae; Tamayoa (Tamayops) banghaasi; conchomorphology; taxonomy; Rio de Janeiro


Systrophiidae; Tamayoa (Tamayops) banghaasi; conchomorphology; taxonomy; Rio de Janeiro

Conquiliomorfologia de Tamayoa (Tamayops) banghaasi (Thiele) (Gastropoda, Systrophiidae)

Conchomorphological aspects of Tamayoa (Tamayops) banghaasi (Thiele) (Gastropoda, Systrophiidae) as a contribution to Systrophiidae systematic

Daniele Pedrosa MonteiroI,II; Sônia Barbosa dos SantosI,III

ILaboratório de Malacologia, Departamento de Biologia Animal e Vegetal, IBRAG, Universidade do Estado do Rio de Janeiro. Rua São Francisco Xavier 524, 20550-900 Rio de Janeiro, Rio de Janeiro, Brasil

IIBolsista PIBIC/UERJ (1997/99). E-mail: danielepm@hotmail.com

IIIE-mail: sbsantos@uerj.br

ABSTRACT

Thirty shells of Tamayoa (Tamayops) banghaasi (Thiele, 1927) from Ilha Grande, Rio de Janeiro, were analyzed with a stereomicroscop showing the following characteristics: discoid shell, without macrosculptures; ovate-lunate aperture without teeth. Thin, sharp and not-reflected lip; umbilicus with 1/5 of the shell's diameter; impressed suture, total whorls from 4 to 5.5; protoconch with 1.5 to 2 whorls; yellowish-amber, translucent and glossy periostracum. The morphology of the shells were discussed, as well as the shell's dimensions. The conchomorphological patterns are important for systematic studies of mollusks and this work presents data that can be used in future studies about the family.

Key words: Systrophiidae, Tamayoa (Tamayops) banghaasi, conchomorphology, taxonomy, Rio de Janeiro

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AGRADECIMENTOS. A Dra Norma Campos Salgado do Museu Nacional do Rio de Janeiro pela identificação específica do material; a UERJ/SR-2 pela concessão da Bolsa de Iniciação Científica no período de 97-99, que permitiu a realização da etapa de campo deste trabalho e ao Setor de Ensino do Curso de pós-graduação da FIOCRUZ, onde este trabalho foi desenvolvido como monografia de especialização em malacologia.

Recebido em 10.VIII.2000; aceito em 15.X.2001.

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Datas de Publicação

  • Publicação nesta coleção
    03 Jun 2009
  • Data do Fascículo
    Dez 2001

Histórico

  • Aceito
    15 Out 2001
  • Recebido
    10 Ago 2000
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