Four new species of Pilargidae (Annelida: Pilarginae) from the Gulf of Thailand

Plathong, Jintana; Dean, Harlan K.; Plathong, Sakanan

doi:10.11646/zootaxa.5071.4.4

Cited by 709 publications

(2 citation statements)

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“…Ancistargis was synonymized with Ancistrosyllis [80], Paracabira with Cabira [81], and this study shows that Otopsis and Antonbruunia fall within Synelminae (Figure 2). With these changes, all genera within Pilarginae must have at least some papillae or verrucae on their integument [11,80,82]. When Pilarginae was erected, Paracabira, now Cabira, was thought to lack lateral antennae; however, they are just small [82]; this brings the antennae count from 0-3 to 2-3.…”

Section: Remarksmentioning

confidence: 99%

“…With these changes, all genera within Pilarginae must have at least some papillae or verrucae on their integument [11,80,82]. When Pilarginae was erected, Paracabira, now Cabira, was thought to lack lateral antennae; however, they are just small [82]; this brings the antennae count from 0-3 to 2-3. Emergent neuropodial hooks are absent from all pilargids [7,13], but the presence (Ancistrosyllis, Cabira, Sigambra) or absence (Pilargis) of emergent notopodial hooks or spines remains.…”

Section: Remarksmentioning

confidence: 99%

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A Mitogenome-Based Phylogeny of Pilargidae (Phyllodocida, Polychaeta, Annelida) and Evaluation of the Position of Antonbruunia

Huč,

Hiley,

McCowin

et al. 2024

Diversity

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Pilargidae is a family of free-living and burrowing marine annelids. A lack of available molecular data for most of these species has precluded a molecular assessment of their phylogenetic relationships and has left uncertain the placement of Antonbruunia, which is hypothesized to be either a member of Pilargidae or its sister clade, the monotypic family Antonbruunidae. In this study, we describe the new species Antonbruunia milenae sp. nov., found at 845 m of depth off the coast of San Diego, California, USA, and we address the phylogeny of these organisms using 15 novel mitogenomes and multiple Sanger-sequenced loci. Our results show that Antonbruunia falls within Pilargidae, making Antonbruunidae a junior synonym of Pilargidae. Glyphohesione was transferred from Pilarginae to Synelminae, the previously unassigned genera Otopsis and Antonbruunia were shown to belong within Synelminae, and Hermundura was assigned to Phyllodocida incertae sedis. Sigambra was found to be non-monophyletic. Four different mitogenome gene orders were found among Pilargidae. Changes between the gene orders and the ancestral state gene order of the family were inferred. Two species have introns within the COI gene. These efforts represent a significant expansion of the available molecular resources for pilargids, as well as the basis for a more stable taxonomy.

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Section: Remarksmentioning

confidence: 99%

Section: Remarksmentioning

confidence: 99%

A Mitogenome-Based Phylogeny of Pilargidae (Phyllodocida, Polychaeta, Annelida) and Evaluation of the Position of Antonbruunia

Huč,

Hiley,

McCowin

et al. 2024

Diversity

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Two new species of Ancistrosyllis McIntosh, 1878 (Annelida: Pilargidae) from the Gulf of Thailand, Western Pacific

Plathong

Plathong²,

Dean³

2022

Zootaxa

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Two new species of Pilargidae, Ancistrosyllis eidimtaiteae sp. nov. and A. suksani sp. nov., are described from the Gulf of Thailand. These Ancistrosyllis are characterized by having a median and two lateral antennae. Ancistrosyllis eidimtaiteae sp. nov. differs from all other species in the group by having brown pigmentation and by having both short antennae and tentacular cirri, first notopodial hooks from chaetiger 3, and a single type of neurochaetae (long non-limbate capillaries with bifid tips). Ancistrosyllis suksani sp. nov. can be distinguished from other species of Ancistrosyllis by the presence of the first notopodial hooks from chaetiger 4 and three types of neurochaetae (short, stout, falcates with a subdistal small guard, short limbates, and long bifid non-limbates). An updated key to the Ancistrosyllis species of this group is also provided.

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New species of Glyphohesione and Pseudexogone (Annelida, Pilargidae) from the Gulf of Thailand

PLATHONG,

DEAN

2024

Zootaxa

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Two new species of Pilargidae, Glyphohesione pattaniensis sp. nov. and Pseudexogone losinensis sp. nov. are described from the southern Gulf of Thailand, Pattani Province. Glyphohesione pattaniensis sp. nov. is clearly distinguished from all other known species in the genus by having lateral antennae on the middle of the prostomium; lacking ventral cirri at chaetiger 2; first notopodial spines beginning at chaetiger 6; and having small epidermal papillae. Pseudexogone losinensis sp. nov. belongs to a group of species in the genus with eyespots present and differs from all other described species by the shape of the furcate chaetae with a strongly curved large tine and a tine with an open tip. An updated key to the species of Glyphohesione and Pseudexogone and a world map of both genera are also provided.

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Four new species of Pilargidae (Annelida: Pilarginae) from the Gulf of Thailand

Cited by 709 publications

References 5 publications

A Mitogenome-Based Phylogeny of Pilargidae (Phyllodocida, Polychaeta, Annelida) and Evaluation of the Position of Antonbruunia

A Mitogenome-Based Phylogeny of Pilargidae (Phyllodocida, Polychaeta, Annelida) and Evaluation of the Position of Antonbruunia

Two new species of Ancistrosyllis McIntosh, 1878 (Annelida: Pilargidae) from the Gulf of Thailand, Western Pacific

New species of Glyphohesione and Pseudexogone (Annelida, Pilargidae) from the Gulf of Thailand

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