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Grania (Annelida: Clitellata: Enchytraeidae) of the Great Barrier Reef, Australia, including four new species and a re-description of Grania trichaeta Jamieson, 1977

Journal article
Authors Pierre De Wit
E. Rota
Christer Erséus
Published in Zootaxa
Volume 2165
Pages 16-38
ISSN 1175-5326
Publication year 2009
Published at Department of Zoology
Pages 16-38
Language en
Links www.mapress.com/zootaxa/2009/f/zt02...
https://gup.ub.gu.se/file/168090
Keywords Grania, taxonomy, Great Barrier Reef, Australia, Oligochaeta, Clitellata, Enchytraeidae, meiofauna, interstitial fauna, biogeography
Subject categories Biological Sciences

Abstract

This study describes the fauna of the marine enchytraeid genus Grania at two locations on the Australian Great Barrier Reef: Lizard and Heron Islands. Collections were made from 1979 to 2006, yielding four new species: Grania breviductus sp. n., Grania regina sp. n., Grania homochaeta sp. n. and Grania colorata sp. n.. A re-description of Grania trichaeta Jamieson, 1977 based on new material is also included, along with notes and amendments on G. hyperoadenia Coates, 1990 and G. integra Coates & Stacey, 1997, the two latter being recorded for the first time from eastern Australia. COI barcode sequences were obtained from G. trichaeta and G. colorata and deposited with information on voucher specimens in the Barcode of Life database and GenBank; the mean intraspecific variation is 1.66 % in both species, while the mean interspecific divergence is 25.54 %. There seem to be two phylogeographic elements represented in the Great Barrier Grania fauna; one tropical with phylogenetic affinities to species found in New Caledonia and Hong Kong, and one southern (manifested at the more southerly located Heron Island) with affinities to species found in Southern Australia, Tasmania and Antarctica.

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