<i>Ceuthonoe</i> <i>nezhai</i> gen. et sp. n. (Polynoidae: Polynoinae) commensal with sponges from Weijia Guyot, western Pacific

Yueyun Wang; Yadong Zhou; Chunsheng Wang

doi:10.1007/s13131-021-1885-0

Volume 40 Issue 12

Dec. 2022

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Yueyun Wang, Yadong Zhou, Chunsheng Wang. Ceuthonoe nezhai gen. et sp. n. (Polynoidae: Polynoinae) commensal with sponges from Weijia Guyot, western Pacific[J]. Acta Oceanologica Sinica, 2021, 40(12): 90-103. doi: 10.1007/s13131-021-1885-0

Citation:

Yueyun Wang, Yadong Zhou, Chunsheng Wang. Ceuthonoe nezhai gen. et sp. n. (Polynoidae: Polynoinae) commensal with sponges from Weijia Guyot, western Pacific[J]. Acta Oceanologica Sinica, 2021, 40(12): 90-103. doi: 10.1007/s13131-021-1885-0

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Ceuthonoe nezhai gen. et sp. n. (Polynoidae: Polynoinae) commensal with sponges from Weijia Guyot, western Pacific

doi: 10.1007/s13131-021-1885-0

Yueyun Wang^{1, 2},
Yadong Zhou^{1, 2},
Chunsheng Wang^{1, 2, 3, 4
,
,}

1.
Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
2.
Key Laboratory of Marine Ecosystem Dynamics, Ministry of Natural Resources, Hangzhou 310012, China
3.
School of Oceanography, Shanghai Jiao Tong University, Shanghai 200030, China
4.
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai 519080, China

Funds: The National Natural Science Foundation of China under contract No. 41806179; the China Ocean Mineral Resources Research and Development Association Program under contract No. DY135-E2-2-03.

More Information

Corresponding author: E-mail: wangsio@sio.org.cn
Received Date: 2021-05-06
Accepted Date: 2021-06-21

Available Online: 2021-10-15

Publish Date: 2021-11-25

Abstract

Abstract

Ceuthonoe, a new genus with type species C. nezhai sp. n. commensal with euplectellid glass sponge (Hexactinellida: Euplectellidae), is described and illustrated, based on the material collected from Weijia Guyot, western Pacific. The new genus is distinguished by a combination of characters: body with 32 segments; 14 pairs of elytra; prostomium with prominent cephalic peaks and facial tubercle; aciculae and chaetae on tentaculophores; biramous parapodium, each ramus with a long aciculum penetrating epidermis, without supra- or subacicular process; and noto- and neurochaetae with unidentate tips. Ceuthonoe gen. n. is mostly silimar to genera of Polynoinae in morphology. However the phylogenetic analysis based on cytochrome c oxidase subunit I, 16S, 18S, and 28S genes suggested that this new genus was separated from the main branch of Polynoinae. The study also discussed the genera related to the new genus.
- new genus,
- new species,
- Polynoidae,
- taxonomy

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References(33)

References

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