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Issue: Vol. 2978 No. 1: 28 Jul. 2011
Type: Articles
Published: 2011-07-28
DOI: 10.11646/zootaxa.2978.1.3
Page range: 51–67
Abstract views: 32
PDF downloaded: 1

Three new species of Tetilla Schmidt, 1868 (Tetillidae, Spirophorida, Demospongiae) from Bahia, northeastern Brazil

Departamento de Zoologia, Instituto de Biologia, Universidade Federal da Bahia, Rua Barão de Geremoabo, s/n,Campus de Ondina, 40170-290, Salvador, BA – Brasil
Departamento de Zoologia, Instituto de Biologia, Universidade Federal da Bahia, Rua Barão de Geremoabo, s/n,Campus de Ondina, 40170-290, Salvador, BA – Brasil
Centro de Ciências Biológicas, Departamento de Zoologia, Universidade Federal de Pernambuco, Av. Nelson Chaves, s/n Cidade Universitária 50373-970 - Recife, PE – Brasil
Departamento de Zoologia, Instituto de Biologia, Universidade Federal da Bahia, Rua Barão de Geremoabo, s/n,Campus de Ondina, 40170-290, Salvador, BA – Brasil
Porifera taxonomy marine sponges soft bottom mangrove estuary

Abstract

In this paper we describe three new species of Tetilla from stretches of the coast of Bahia, northeastern Brazil, all collected in shallow waters and soft bottoms. Tetilla pentatriaena sp. nov. is distinct from other species of the genus by the unique possession of five categories of triaenes: two of protriaenes and three of anatriaenes. Tetilla muricyi sp. nov. and Tetilla rodriguesi sp. nov. are the first species in the genus registered exclusively from mangrove ecosystems and are distinct from most species of Tetilla by their lack of microscleres. Tetilla muricyi sp. nov. differs from all species by its spiculation and by having a reticulate skeleton of secondary oxeas. Tetilla rodriguesi sp. nov. differs from other species without sigmaspires by the presence of three categories of oxeas, two of trichoidal protriaenes and one of exclusively rhizoidal anatriaenes. In addition to the three new species described here we also provided one identification key to the Tetilla species occurring in the Atlantic Ocean.

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