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      Description of two new species of Paraonidae (Annelida) from the Gulf of Thailand, Western Pacific

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          Abstract

          Two new species of Aricidea Webster, 1879 ( Paraonidae ), Aricidea ( Acmira ) anusakdii sp. nov. and Aricidea ( Aricidea ) thammapinanae sp. nov. were collected from 10–26.5 m depth, in soft bottoms with mud mixed with sand and shells at Songkhla Sea, the Gulf of Thailand between 2011–2018. Aricidea ( Acmira ) anusakdii sp. nov. is clearly distinguished from other species of the subgenus Acmira by having a rounded bilobed prostomium divided by a slight notch on the anterior margin; red pigments on the subdistal to the tip of each branchia (new character); two prebranchial chaetigers; 48–68 pairs of branchiae; and modified neurochaetae as strong curved spines with blunt shafts surrounded by pubescence from chaetigers 19–44. On the other hand, Aricidea ( Aricidea ) thammapinanae sp. nov. can be separated from other members of the subgenus Aricidea by the presence of a biarticulated median antenna; distinctive notopodial lobes as broad triangular with short distal protuberances on chaetiger 3, 4–8 pairs of branchiae; and modified neurochaetae as bidentate neurochaetae with a long pubescent subterminal arista on the concave side. All data have been archived and are freely available from the Dryad Digital Repository ( https://doi.org/10.5061/dryad.hqbzkh1cn).

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          Most cited references 3

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          THE POLYCHAET FAUNA OF SOUTH AFRICA. PART 6. SEDENTARY SPECIES DREDGED OFF CAPE COASTS WITH A FEW NEW RECORDS FROM THE SHORE.

           J. H. Day (1961)
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            The family Paraonidae (Polychaeta) in british waters: a new species and new records with a key to species

             J. P. Hartley (1981)
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              Description and distribution of two new species of Paraonidae (Annelida:Polychaeta) from a lagoon-estuarine ecosystem in the Southern Gulf of Mexico.

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                Author and article information

                Contributors
                Journal
                Zookeys
                Zookeys
                2
                urn:lsid:arphahub.com:pub:45048D35-BB1D-5CE8-9668-537E44BD4C7E
                urn:lsid:zoobank.org:pub:91BD42D4-90F1-4B45-9350-EEF175B1727A
                ZooKeys
                Pensoft Publishers
                1313-2989
                1313-2970
                2020
                22 July 2020
                : 951
                : 1-20
                Affiliations
                [1 ] Marine Ecosearch Management Co., Ltd., 4/31 Moo 1, Namnoi, Hatyai, Songkhla, Thailand Marine Ecosearch Management Co., Ltd. Hatyai Thailand
                [2 ] Marine Science Learning Center, Department of Biology, Faculty of Science, Prince of Songkla University, Hatyai, Songkhla, Thailand Prince of Songkla University Hatyai Thailand
                [3 ] Unidad Académica de Ecología y Biodiversidad Acuática, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México. Circuito Exterior S/N, Cd. Universitaria, Cd. México, México Universidad Nacional Autónoma de México Mexico City Mexico
                [4 ] Natural History Museum of Los Angeles County, 900 Exposition Blvd. Los Angeles CA, USA Natural History Museum of Los Angeles County Los Angeles United States of America
                Author notes
                Corresponding author: Sakanan Plathong ( sakanan2004@ 123456yahoo.com )

                Academic editor: C. Glasby

                Article
                51686
                10.3897/zookeys.951.51686
                7390806
                Jintana Plathong, Pablo Hernández Alcántara, Leslie Harris, Sakanan Plathong

                This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                Categories
                Research Article
                Paraonidae
                Polychaeta
                Systematics
                Asia

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