A new Fenestrulina (Bryozoa, Cheilostomata) commensal with tube-dwelling anemones (Cnidaria, Ceriantharia) in the tropical southwestern Atlantic


Autoria(s): Vieira, Leandro Manzoni; Stampar, Sergio Nascimento
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

24/03/2014

24/03/2014

24/03/2014

Resumo

A new species of cheilostome bryozoan, Fenestrulina commensalis n. sp., was collected in December 2008 by scuba at 5–10 meters depth at Guaibura Beach, Guarapari, Espírito Santo state, southeastern Brazil. The specimen was found associated with tubes of the cerianthid Pachycerianthus sp., representing the first commensal association between a bryozoan and a tube-dwelling anemone. Fenestrulina commensalis n. sp. is the third species of the genus found in Brazilian waters; it is distinguished from other Atlantic species of Fenestrulina by its small angular orificial condyles, a single oral spine and basal anchoring rhizoids arising from abfrontal pore chambers. Morphological adaptations to encrust the tubes of cerianthids include anchoring rootlets and weakly contiguous zooids. These morphological features allow the colony the flexibility to grow around the tube and feed relatively undisturbed by silt and detritus, being raised well above the softsediment substratum in which the tube-anemone grows.

São Paulo Research Foundation (FAPESP) [Proc n. 2012/24285-1 to LMV, Proc n. 2012/01771 to SNS]

CNPq [Proc n. 481549/2102-9 to SNS]

NP-BioMar, USP

Identificador

http://www.producao.usp.br/handle/BDPI/44261

10.11646/zootaxa.3780.2.8

http://biotaxa.org/Zootaxa/article/view/zootaxa.3780.2.8

Idioma(s)

eng

Publicador

Auckland

Relação

Zootaxa

Direitos

restrictedAccess

2014 Magnolia Press

Palavras-Chave #association #Bryozoa #Cnidaria #commensalism #Pachycerianthus #Fenestrulina #new species #symbiosis
Tipo

article

original article

publishedVersion