Eubranchus rupium ...

• Main Authors: Ekimova, Irina A., Grishina, Darya Yu., Nikitenko, Ekaterina D.
• Format: Text
• Language: unknown
• Published: Zenodo 2024
• Subjects: Biodiversity; Taxonomy; Animalia; Mollusca; Gastropoda; Nudibranchia; Eubranchidae; Eubranchus; Eubranchus rupium; Okhotsk; Pacific; Sakhalin
• Online Access: https://dx.doi.org/10.5281/zenodo.11093318; https://zenodo.org/doi/10.5281/zenodo.11093318

Eubranchus rupium (Møller, 1842) (Fig. 8B, C, I) Material studied: MIMB48068 – MIMB48070, 3 specimens, all dissected, Sea of Okhotsk, Aniva Bay, Moguchi River, Hirano ridge, 46°05’06.5”N, 142°12’39.4”E, 0.1–1 m in depth, on Zostera sp. with Obelia longissima colonies, 7 August 2023, coll. I. Ekimova, D. Grishina. Diagnosis: Body elongate, narrow, up to 5 mm in length, yellowish semitransparent with small reddish-brown spots. Rhinophores and oral tentacles elongated, smooth. Cerata finger-shaped, with pointed tips, bearing small thickening in upper part, arranged in 5–7 groups with 1–2 cerata per group. Jaws triangular-shaped with masticatory border bearing one row of small conical denticles. Radular formula 18–22 × 1.1.1. Triangular rachidian tooth with depressed central cusp and 6-7 lateral denticles on each side. Lateral teeth with rectangular base and triangular cusp. Ampulla small, bean-shaped. Vas deferens without prostatic part. Penis conical. Receptaculum seminis bent in middle part, expanded. ... : Published as part of Ekimova, Irina A., Grishina, Darya Yu. & Nikitenko, Ekaterina D., 2024, Nudibranch molluscs of Sakhalin Island, Northwestern Pacific: new records and descriptions of two new species, pp. 69-91 in Ruthenica, Russian Malacological Journal 34 (2) on pages 83-84, DOI: 10.35885/ruthenica.2024.34(2).3, http://zenodo.org/record/11042878 ...