Adalaria olgae 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; Adalaria; Adalaria olgae; Kamchatka Peninsula; Pacific; Kamchatka
• Online Access: https://zenodo.org/record/5694802; https://doi.org/10.5281/zenodo.5694802

Adalaria olgae sp. nov. (Figures 3 D, H; 6 G–H; 7 C; 10; 11 E, F, H; 12 C–D. Table 2) Type Material. Holotype, ZMMU Lc- 37451, NW Pacific near Kamchatka peninsula, Starichkov Id., 20–26 m depth, collected by T.A. Korshunova and A.V. Martynov, 14.08. 2008. Paratypes, ZMMU Lc- 37452, two dissected specimens, same locality and collectors as holotype, 20–25 m depth, 14.08. 2008. Paratype, ZMMU Lc- 37453, one dissected specimen, same locality and collectors as holotype, 19.08. 2008. Paratypes, ZMMU Lc- 37454, three specimens, same locality and collectors as holotype, 14.08. 2008. Paratypes, ZMMU Lc- 37455, ten specimens, same locality and collectors as holotype, 14.08. 2008. Type locality. NW Pacific, SE Kamchatka, Starichkov Id., 18–26 m depth. Etymology. Adalaria olgae sp. nov. is named in honour of the daughter of two authors (AM and TK). Description. External morphology. The dimensions of the holotype are 13.5 mm x 7 mm (Fig. 10). The length of 10 living specimens ranged from 5.5 to 13.5 mm, the width ranged from 3.5 to 7 mm. The consistency of the living animals is rather soft. The notum is moderately broad, rounded in front and posteriorly. The rhinophores are long and retract into sheaths with smooth edges, except for 3 tubercles of variable size at the edges of the sheaths (Fig. 10 D). The rhinophoral sheath edges are capable of some contraction in living specimens. There are 6–9 rhinophoral lamellae. The clavus of each rhinophore lacks a ridge posteriorly. The notum is densely covered with club-shaped or almost globular tubercles on a short stalk (Fig. 10 A). The top of the tubercles often has a peculiar wrinkled appearance, somewhat tulip-shaped (Fig. 10 C). The tubercles of the mid-notal area are somewhat wider and more globular than those at the notal edge. Larger tubercles are regularly intermingled with smaller ones. Rays of spicules radiating from the bases of tubercles form a network on the surface of the apparently soft notum (Fig. 6 G). The spicules are not conspicuous externally. Each tubercle ...