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Issue: Vol. 5674 No. 1: 8 Aug. 2025
Type: Monograph
Published: 2025-08-08
DOI: 10.11646/zootaxa.5674.1.1
Page range: 1-84
Abstract views: 21
PDF downloaded: 0

Redescription of type material of the genus Cladiella Gray, 1869 (Octocorallia, Malacalcyonacea, Cladiellidae) from the Red Sea

School of Zoology; George S. Wise Faculty of Life Sciences; Tel Aviv University; Ramat Aviv; Tel Avi 69978; Israel
Department of Biology; Harvey Mudd College; Claremont; CA 91711; USA
School of Zoology; George S. Wise Faculty of Life Sciences; Tel Aviv University and Steinhardt Museum of Natural History and National Research Center; Tel Aviv University; Tel Aviv; 69978; Israel
School of Zoology; George S. Wise Faculty of Life Sciences; Tel Aviv University; Ramat Aviv; Tel Avi 69978; Israel
Diptera Biogeography dumbbells holotype morphology polyp sclerites SEM syntype

Abstract

Zooxanthellate octocorals of the genus Cladiella Gray, 1869 are common on Indo-Pacific coral reefs, including in the Red Sea. Among the 61 species listed in WoRMS, 27 species were originally described from the Red Sea, mostly based on material collected in the 19th century. The latter includes the type species of the genus as well as the three other oldest known species of the genus. The goals of the present study were to locate the various natural history museum depositories of the 27 Red Sea types and to redescribe the types for the first time since their initial description. All type colonies were found and re-described using whole-colony photography and scanning electron microscopy (SEM) to depict their sclerites. SEM images provide the dimensions and the detailed surface-microstructure of all sclerite types present across all type materials. These findings led us to a revised diagnosis of the genus and an updated description of all 27 types. The results present a comprehensive overview of all of the Red Sea Cladiella type colonies, constituting the first step towards a complete taxonomic revision of this speciose genus.

 

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How to Cite

Lazar, E., Mcfadden, C.S., Huchon, D. & Benayahu, Y. (2025) Redescription of type material of the genus Cladiella Gray, 1869 (Octocorallia, Malacalcyonacea, Cladiellidae) from the Red Sea. Zootaxa, 5674 (1), 1–84. https://doi.org/10.11646/zootaxa.5674.1.1