Onchidoris macropompa Martynov, Korshunova, Sanamyan & Sanamyan, 2009, sp. nov.

• Main Authors: Martynov, Alexander, Korshunova, Tatiana, Sanamyan, Nadezhda, Sanamyan, Karen
• Format: Other/Unknown Material
• Language: unknown
• Published: 2009
• Subjects: Biodiversity; Taxonomy; Animalia; Mollusca; Gastropoda; Nudibranchia; Onchidorididae; Onchidoris; Onchidoris macropompa; Pacific; Kamchatka Peninsula; Kamen’; Beringa; Stolb; Kekur; Korabelny; Kamchatka
• Online Access: https://zenodo.org/record/5694806; https://doi.org/10.5281/zenodo.5694806

Onchidoris macropompa sp. nov. (Figures 6 I, J; 7 D; 13; 14 A–F; 15 A, B. Table 3) Onchidoris sp.: Martynov, 1997: 235 Material. Holotype, ZMMU Lc- 37463, NW Pacific near Kamchatka peninsula, Starichkov Id., 6–7 m depth, collected by T.A. Korshunova and A.V. Martynov, 25.07. 2008. Paratypes, Lc- 37464, two specimens (one dissected), same locality and collectors as holotype, 25.07. 2008. Paratype, ZMMU Lc- 37465, one specimen (dissected), 21–26 m depth, same locality and collectors as holotype, 14.08. 2008. Paratypes, ZMMU Lc- 37466, two specimens (dissected), 12–15 m depth, same locality and collectors as holotype, 19.08.2008; Paratype, ZMMU Lc- 37467, one specimen (dissected), Commander Ids., Medny Id., Cape Drovyanye Stolby, sample 101, 9– 12 m depth, collector Oshurkov V.V., 17.07. 1992. Paratype, ZMMU Lc- 37468, one specimen (dissected), Commander Islands, Beringa Id., Ariy Kamen Id., sample 225, 25 m depth, rock, collector V.I. Shalukhanov, 0 2.08. 1991. Paratypes, Lc- 37469, two specimens (one dissected), Commander Islands, Mednyi Id., Kekur Korabelny Stolb Id., 18–19 m depth, rock, collector V.I. Shalukhanov, 11.07. 1992. Type locality. NW Pacific, SE Kamchatka, Starichkov Id., 6–26 m depth. Etymology. From macros (Greek, = large) and pompa (Russian, Italian, = pump) refers to the largest relative size of the buccal pump of the present species within Onchidorididae. Description. External morphology. The length of holotype is 7 mm, the width is 4 mm (Fig. 13 A). The length of 5 living specimens ranged from 6 to 15 mm, the width ranged from 4 to 6.5 mm. The consistency of the living animals is hard. The notum is moderately broad, rounded in front and posteriorly. The rhinophores are long and retract into sheaths with smooth edges, except for 3–4 tubercles of various sizes that are connected with the edges of the sheaths (Fig. 13 F). The rhinophoral sheath edges are capable of some contraction in living specimens. There are 7–13 rhinophoral lamellae. The notum is densely covered with mushroom-shaped or ...