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Polychaeta source details

Aguado, María Teresa; Glasby, Christopher J. (2015). Indo-Pacific Syllidae (Annelida, Phyllodocida) share an evolutionary history. Systematics and Biodiversity. 13(4): 369-385.
10.1080/14772000.2014.992379 [view]
Aguado, María Teresa; Glasby, Christopher J.
Indo-Pacific Syllidae (Annelida, Phyllodocida) share an evolutionary history
Systematics and Biodiversity
13(4): 369-385
World Polychaeta Database (WPolyDb)
Available for editors  PDF available [request]
The geographic distribution of three intriguing genera of Syllidae (Annelida, Phyllodocida), Alcyonosyllis, Paraopisthosyllis and Megasyllis, is restricted to the Pacific Ocean, Indian Ocean and the Red Sea. In this study new material of several species in all three genera is identified, and the distributions of the species and genera refined; four species of Alcyonosyllis were found to have increased ranges. Additionally, one new species of Paraopisthosyllis is described. Paraopisthosyllis pardus sp. nov. is characterized by having long bidentate bladed-chaetae, segments covered by small papillae, and a colour pattern consisting in dark red-brown antennae and dorsal cirri and several transversal dark red-brown lines per segment. The three genera share several striking morphological characteristics, such as alternation in the arrangement of dorsal cirri, wide segments with secondary annuli and bright, contrasting colour patterns. Alcyonosyllis species are found in association with other organisms, most noticeably anthozoans, whereas members of Paraopisthosyllis and Megasyllis are free living. Molecular information (sequences of DNA) from Alcyonosyllis species (including the type species, A. phili), and the type of Megasyllis (M. corruscans) is included herein for the first time in a phylogenetic analysis. A phylogenetic analysis performed through different methods (Maximum parsimony and Maximum likelihood) using sequences of three genes (18S, 16S and COI) reveals that all the three genera form a monophyletic group within Syllidae, with several synapomorphies, and a common ancestor probably from the Indo-Pacific. Their geographic distribution pattern, the relationships between these genera and the rest of syllids, and the symbiosis in Alcyonosyllis are discussed.
Australia to South-east Asia
Indian Ocean
Indo West Pacific Region
Pacific Ocean
Phylogeny, Phylogenesis
Systematics, Taxonomy
RIS (EndNote, Reference Manager, ProCite, RefWorks)
BibTex (BibDesk, LaTeX)
2015-01-28 12:14:40Z
2016-07-14 10:23:35Z
2017-05-19 11:18:33Z

Holotype NTM W025611, geounit Australia, identified as Paraopisthosyllis pardus Aguado & Glasby, 2015
Paratype NTM W45011, geounit Australia, identified as Paraopisthosyllis pardus Aguado & Glasby, 2015
 Depth range

5-12 m (Australia); 2-3 m (Philippines). [details]


Segments covered by papillae, dorsal cirri at different levels, alternating in size and length, long bidentate ... [details]


Pacific Ocean: Australia (Queensland); Philippines (Luzón Island).  [details]


The specific epithet pardus, meaning 'brown' in Latin, makes reference to the colour pattern of the species, with ... [details]


Coral rubble, at shallow water.  [details]

 Type locality

Lamont Reef, Heron Island, Great Barrier Reef, Queensland, Australia (23º33.26'S, 152º02.03'E).  [details]