A new species of Euchonoides (Annelida, Polychaeta, Sabellidae) from Suruga Bay, Japan

A new species of Euchonoides (Annelida, Polychaeta, Sabellidae) from Suruga Bay, Japan

Euchonoides is a genus of small sabellid worms composed of two valid species, E. moeone from Hawaii and E. bicincta from Kamchatka and Kurile Islands. We report here a third species from sandy mud sediments in Suruga Bay, Japan. Euchonoides shizuoka sp. nov. is characterized by several unique, disti...

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Veröffentlicht in:Plankton & benthos research 2024/11/28, Vol.19(4), pp.203-211
Hauptverfasser: Nishi, Eijiroh, Tanaka, Katsuhiko, Jimi, Naoto, Tovar-Hernández, María Ana
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clitellum
Marine worms
Nihondaira-Miho-no-Matsubara
Shizuoka
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creator Nishi, Eijiroh
Tanaka, Katsuhiko
Jimi, Naoto
Tovar-Hernández, María Ana
description Euchonoides is a genus of small sabellid worms composed of two valid species, E. moeone from Hawaii and E. bicincta from Kamchatka and Kurile Islands. We report here a third species from sandy mud sediments in Suruga Bay, Japan. Euchonoides shizuoka sp. nov. is characterized by several unique, distinctive features as follows: a laterally notched collar; a wide glandular ridge on chaetiger 2; enlarged thoracic chaetigers 5–8; distinctive glandular shields on thoracic chaetigers 6–8; an enlarged abdominal chaetiger 1; swollen pad-like structures on the ventral side of abdominal chaetiger 2; a pre-pygidial depression with lateral wings and an anterior bordering margin. A comprehensive description based on the external morphology and supplemented with scanning electron microscopy images, light microscopy, and line drawings, is provided.
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subjects clitellum
Marine worms
Nihondaira-Miho-no-Matsubara
Shizuoka
title A new species of Euchonoides (Annelida, Polychaeta, Sabellidae) from Suruga Bay, Japan
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