A new species of Amphictene (Annelida, Polychaeta, Pectinariidae) from off Kushiro, Hokkaido, Japan
Nishi, E.; Tomioka, S.; Jimi, N.; Fujiwara, Y.; Kupriyanova, E.K. (2024). A new species of Amphictene (Annelida, Polychaeta, Pectinariidae) from off Kushiro, Hokkaido, Japan. Plankton Benthos Res. 19(1): 51-59. https://dx.doi.org/10.3800/pbr.19.51
In: Plankton & Benthos Research. The Plankton Society of Japan/The Japanese Association of Benthology: Tokyo. ISSN 1880-8247, more
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| Keywords |
Taxa > Species > New taxa > New species
Amphictene Savigny, 1822 [WoRMS]; Terebelliformia [WoRMS]
Marine/Coastal |
| Author keywords |
Terebellomorpha, taxonomy, uncini, ultrastructure |
| Authors | | Top |
- Nishi, E.
- Tomioka, S.
- Jimi, N.
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- Fujiwara, Y.
- Kupriyanova, E.K.
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| Abstract |
We describe here a new species of Amphictene (Annelida, Polychaeta, Pectinariidae) from a depth of 1160 m off Kushiro, East Hokkaido, Japan. Amphictene hokkaido sp. nov. is characterized by the presence of following characters: a pair of ventral lappets in segment 1; ventro-median lobes in segments 2–4; anterior conical or rounded lappets on ventro-lateral lobe of segment 2; dorso-lateral pads in segments 3 and 4; 17 segments with chaetae on notopodia, 13 segments with uncini on neuropodia; notopodia in segment 21 with notopodial lappets beneath chaetal tuft; neuropodial uncini with 4–5 main teeth and subrostral process on basal prow; 7–9 pairs of scaphal hooks; scaphe with anterior median lobe and four pairs of lateral lobes; anal lobe with an anal cirrus and a row of postero-ventral minute cirri. We provide a diagnostic key to species of the genus.
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