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Didemnum tetrahedrum sp. nov., a new Didemnum (Tunicata: Ascidiacea) species from south-eastern Brazil

Published online by Cambridge University Press:  23 November 2004

Gustavo Muniz Dias
Affiliation:
Departamento de Zoologia Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CP 6109, CEP 13083-970, Campinas, São Paulo State, Brazil
Sérgio de Almeida Rodrigues
Affiliation:
Departamento de Zoologia Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), CP 6109, CEP 13083-970, Campinas, São Paulo State, Brazil In memoriam

Abstract

A new species of Didemnum was discovered during a recent biodiversity survey of Praia da Baleia, São Sebastião, São Paulo State, Brazil. This species has a unique and peculiar type of spicule composed by four calcareous spheroids grouped together to form a tetrahedral structure. In other aspects, the new species is similar to certain other whitish tropical Atlantic American didemnids formerly assigned to Didemnum candidum.

Type
Research Article
Copyright
© 2004 Marine Biological Association of the United Kingdom

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