Dendronotus kamchaticus Ekimova, Korshunova, Shepetov, Neretina, Sanamyan & Martynov 2015

• Main Authors: Korshunova, Tatiana, Bakken, Torkild, GrØtan, Viktor V., Johnson, Kjetil B., Lundin, Kennet, Martynov, Alexander
• Format: Other/Unknown Material
• Language: unknown
• Published: 2020
• Subjects: Biodiversity; Taxonomy; Animalia; Mollusca; Gastropoda; Nudibranchia; Dendronotidae; Dendronotus; Dendronotus kamchaticus; Pacific; Kamchatka
• Online Access: https://zenodo.org/record/4623989; https://doi.org/10.5281/zenodo.4623989

Dendronotus kamchaticus Ekimova, Korshunova, Shepetov, Neretina, Sanamyan & Martynov, 2015 Fig. 7 Dendronotus kamchaticus Ekimova, Korshunova, Shepetov, Neretina, Sanamyan & Martynov, 2015: 869–872, Figs 6E, 8D, 16A, B, 17, 18A; Korshunovaet al., 2016a: 32–36, Figs 4C, D, 5. Extended diagnosis. Body narrow. Five to six pairs of branched dorsolateral appendages. Four to six oral veil appendages. Five to six appendages (apparently similar in size or posterior longer) of rhinophoral stalks. Lateral papilla of rhinophoral sheaths present. Rhinophoreswith 5–11 lamellae. Lip papillae 4–15. Basal colour semitransparent to brownish with irregularly scattered small brownish dots. Dorsalprocessesof jaws inclined posteriorly at approximately 70° to the longitudinal axis of the jaw body and 0.37 of its length. Masticatory processes possibly beardenticlesandridge-likestructures.Radula with upto 44 rows of teeth. Central tooth with almost completely reduced denticles and furrows at adult stages, subadults may bear small denticles. Up to eleven lateral teeth with up to nine denticles. Ampulla moderately voluminous with several (at least two or three) folded loops. Bursa copulatrix large, rounded. Seminal receptaculum small, placed distally at a moderately short distance from the vaginal opening. Prostate discoid with circa 7–25 alveolar glands. The vas deferens is moderate in length, penis relatively long, slightly curved. Body length up to 30 mm. Distribution. NW Pacific from Kamchatka to Japan Sea, Russia, and NE Pacific in Salish Sea, Canadaand USA. Bathymetry. 7–17 mdepth. Remarks. Though this species previously was confused with D. frondosus, D. albus and D. venustus, D. kamchaticus is well delineated from those species according to the morphological features (semitransparent grayish with white-tipped dorsolateral appendages and digestive gland often penetrating all branches of all dorsolateral appendages to body brownish colouration without dorsal subparallel stripes), radular patterns (usually almost smooth ...