Wang, Yueyun; Cheng, Hong; Wang, Chunsheng. (2021). A new eyeless species of Nicon (Annelida: Nereididae) from the deep Northwest Pacific Ocean. Acta Oceanologica Sinica. 40(12): 20-26.

422046

10.1007/s13131-021-1886-z [view]

Wang, Yueyun; Cheng, Hong; Wang, Chunsheng

2021

40(12): 20-26

Publication

https://doi.org/10.1007/s13131-021-1886-z

World Polychaeta Database (WPolyDb). Article is open access on the website of Acta Oceanologica Sinica of the Chinese Society for Oceanography

Available for editors  

A new species of the nereidid annelid, genus Nicon Kinberg, 1866, from KIOST Seamount, Northwest Pacific deep water is described. Nicon is a genus characterized by lacking paragnaths or papillae on the pharynx and composed of nine species worldwide, distributed from shallow water to deep sea. Nicon ablepsia sp. nov. here described is characterized by the lack of eyes on the prostomium, prolonged tentacular cirri reaching to chaetiger 6, notochaetae homogomph spinigers, neurochaetae homogomph spinigers and heterogomph falcigers. Phylogenetic relationships of Nicon remain undetermined based on molecular data. In this study, we constructed molecular Maximum-Likelihood phylogenetic tree from 29 nereidid species based on four marker genes: mitochondrial 16S rRNA gene and cytochrome c oxidase subunit I (COI) gene; nuclear 18S rRNA gene and 28S rRNA gene. Our analysis suggest the Nicon is clustered within Nereidinae, and nereidinae is not recovered as monophyletic. A key to species of Nicon is provided.

Pacific Ocean

Abyssal, Deep-Sea
Molecular systematics, Molecular biology
Systematics, Taxonomy

Annelida
Polychaeta

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