Revision of the Recent species of Exechonella Canu & Bassler in Duvergier, 1924 and Actisecos Canu & Brassler, 1927 (Bryozoa, Cheilostomata): systematics, biogeography and evolutionary trends in skeletal morphology.
- Author(s)
- Julia P. Cáceres-Chamizo, Joann Sanner, K.J. Tilbrook, Andrey Ostrovsky
- Abstract
The present study describes species of Exechonella and Actisecos discovered through the examination of recent collections from the Red Sea, coast of Oman and Maldive Islands (Indian Ocean) and the Lizard Island, Australia (Great Barrier Reef, Coral Sea) in comparison with historical collections. Eight species of Exechonella are redescribed: E. grandis (type species), E. ampullacea, E. antillea, E. brasiliensis, E. erinacea, E. pumicosa, E. spinosa and E. verrucosa. Eighteen new species of Exechonella are also described: E. azeezi n. sp., E. catalinae n. sp., E. californiensis n. sp., E. claereboudti n. sp., E. elegantissima n. sp., E. floridiana n. sp., E. harmelini n. sp., E. kleemanni n. sp., E. maldiviensis n. sp. E. nikitai n. sp., E. panamensis n. sp., E. reniporosa n. sp., E. rimopora n. sp., E. safagaensis n. sp., E. similis n. sp., E. variperforata n. sp. E. vavrai n. sp. and E. vieirai n. sp. The species studied were grouped in five species complexes. Additionally, two species from the genus Actisecos-A. regularis and A. discoidea were redescribed. The current revision highlights a number of important taxonomical, biogeographical and morphological questions that are of the general biological interest. Among thåm is a polyphyletic nature of Cheilostomata possessing umbonuloid frontal shield.
- Organisation(s)
- Department of Palaeontology
- External organisation(s)
- Instituto de Fomento Pesquero, Smithsonian National Museum of Natural History, Oxford University Museum of Natural History, Saint Petersburg State University
- Journal
- Zootaxa
- Volume
- 5131
- Pages
- 1-115
- No. of pages
- 115
- ISSN
- 1175-5326
- DOI
- https://doi.org/10.11646/zootaxa.4305.1.1
- Publication date
- 2016
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 105118 Palaeontology
- Keywords
- ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics, Animal Science and Zoology
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/revision-of-the-recent-species-of-exechonella-canu--bassler-in-duvergier-1924-and-actisecos-canu--brassler-1927-bryozoa-cheilostomata-systematics-biogeography-and-evolutionary-trends-in-skeletal-morphology(4a86d18f-b584-4aaf-9f5d-0cdbf94aef1a).html