Nicola gen. Nov. With redescription of Nicola tetela (Borojevic & Peixinho, 1976) (Porifera: Calcarea: Calcinea: Clathrinida)

B. Cóndor-Luján, M. Klautau

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Abstract

Guancha tetela was originally described as a species having a peduncle and a skeleton exclusively composed of sagittal triactines. Therefore, according to the most recent phylogeny of Clathrinida, it should be placed in the genus Clathrina. This species was collected on the Northeastern Brazilian coast in 1968 and it was not collected again until 2011 in Cu-raçao. In this study, we reanalyzed the type material and the new specimens from Curaçao under a morphological-molec-ular approach. Morphological analysis revealed the presence of tetractines in the skeleton of all the studied specimens, including a slide of the holotype. In the molecular phylogeny G. tetela grouped with genera containing tetractines, but as an independent new lineage, different from all the other genera of Clathrinida. Based on these results, we propose the erec-tion of a new genus, Nicola gen. nov., to include species whose body is composed of tubes without anastomosis nor branches but that run in parallel and coalesce at the apical and basal regions. Moreover, the skeleton is exclusively com-posed of sagittal triactines and tetractines.

Original languageEnglish
Pages (from-to)230-238
Number of pages9
JournalZootaxa
Volume4103
Issue number1
DOIs
StatePublished - 13 Apr 2016

Keywords

  • Atlantic ocean
  • Caribbean sea
  • Curacao
  • Guancha tetela
  • Molecular systematics
  • New genus
  • Northeastern brazilian coast

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