<strong>A new genus of Lanceoporidae (Bryozoa, Cheilostomata)</strong>

OSCAR REVERTER-GIL; JAVIER SOUTO; EUGENIO FERNÁNDEZ-PULPEIRO

doi:10.11646/zootaxa.3339.1.1

Issue: Vol. 3339 No. 1: 8 Jun. 2012

Type: Articles

Published: 2012-06-08

DOI: 10.11646/zootaxa.3339.1.1

Page range: 1–29

Abstract views: 51

PDF downloaded: 3

A new genus of Lanceoporidae (Bryozoa, Cheilostomata)

OSCAR REVERTER-GIL⁺⁻
JAVIER SOUTO⁺⁻
EUGENIO FERNÁNDEZ-PULPEIRO⁺⁻

Departamento de Zooloxía e Antropoloxía Física, Facultade de Bioloxía, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain

Bryozoa Mediterranean NE Atlantic Australia new species ovicell closure Schizoporelloidea Smittinoidea Bitectiporidae Schizomavella Calyptotheca

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Abstract

A new genus of cheilostomate bryozoan, Stephanotheca n. gen., is introduced for several species previously placed in thegenus Schizomavella. This new genus differs from Schizomavella mainly in its ovicell closure, with a dimorphic orificeclosed by the zooidal operculum. Nine species are placed in the genus Stephanotheca n. gen. Stephanotheca barrosoi n.sp., type species of the genus, was previously reported as Schizomavella ambita. Stephanotheca ambita is redescribedfrom the original Australian material, while Stephanotheca watersi n. sp., previously reported as Schizomavella ambitaand Schizomavella rudis, is described from material collected in the western Mediterranean. Stephanotheca victoriensisn. sp. is described for other Australian specimens. The rest of the species are closely similar, so they are grouped in theStephanotheca ochracea species group. Stephanotheca ochracea, redescribed from its holotype, is the only Atlantic spe-cies of the genus. A lectotype and paralectotypes are chosen for Stephanotheca monoecensis. Stephanotheca triangulatan. sp. and Stephanotheca perforata n. sp. were previously reported as S. ochracea. Finally, Stephanotheca arrogata is re-described from the original material. The structure of the ovicell of Stephanotheca, its opening, with a dimorphic orificeclosed by the zooidal operculum, and the presence of zooids with extremely enlarged orifices suggest that this genus be-longs to the family Lanceoporidae, which must be transferred from the Schizoporelloidea to the Smittinoidea owing to its smittinoid ovicell.

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