Pandalus ivanovi Komai & Eletskaya, 2008, n. sp.

• Main Authors: Komai, Tomoyuki, Eletskaya, Maria
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2008
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Decapoda; Pandalidae; Pandalus; Pandalus ivanovi; Sakhalin
• Online Access: https://doi.org/10.5281/zenodo.6228294; http://treatment.plazi.org/id/03FC8790FF8DFF94FF23875187E7BAE1

Pandalus ivanovi n. sp. (Figs 1–6, 8) Material examined . Holotype: CBM-ZC 9221, female (CL 28.4 mm), off eastern Sakhalin, Sea of Okhotsk, 46°N, 145°E, 2005, 150– 200 m, rocky bottom, commercial fishing using shrimp basket, S. Miyaki leg. Paratypes: CBM-ZC 9222, 2 females (CL 31.0, 31.4 mm), same data as holotype; CBM-ZC 9223, 20 females (CL 30.2–35.6 mm), same data as holotype; MNHN-Na 16873, same data as holotype; NSMT-Cr 18306, same data as holotype; CBM-ZC 9224, 4 females (CL 30.6–33.1 mm), similar locality, 2005, M. Fujiwara leg.; VNIRO, 19 transitional males (CL 27.6–30.0 mm), 5 females (CL 29.0– 31.5 mm), 3 ovigerous females (CL 27.3–33.9 mm), off eastern Sakhalin, 49°15’N 144°35’E to 49°15’N 144°39’E, 90–120 m, FRV Viktoriya 2, September 2001. Description. Females . Body (Fig. 1) moderately robust. Rostrum (Fig. 2 A, B) strongly curving dorsally, overreaching distal margin of antennal scale, 1.02–1.25 times as long as carapace; dorsal margin armed with 16–24 movable spines, including 9–14 on rostrum proper and 6–9 on carapace posterior to orbital margin, and 1 or 2 small fixed teeth near apex of rostrum, subdistal 0.50–0.60 leaving unarmed, posteriormost (first) spine arising at posterior to midlength of carapace (0.55–0.59 of carapace length); ventral margin armed with 7–9 fixed teeth increasing in size posteriorly, posteriormost tooth distinctly stronger than others; lateral carina conspicuous in posterior half. Carapace (Fig. 2 A) with postrostral ridge moderately high, somewhat crested but non-arched, extending nearly to posterodorsal margin; dorsal margin gently convex in lateral view, posteriormost 1–4 spines on peak; antennal tooth moderately strong; branchiostegal tooth small; no conspicuous ridges or carinae on lateral surface. Pleon (Figs 1, 2 C) dorsally smooth. Third somite without middorsal projection or posterodorsal median tooth. Fourth and fifth somites each with posterolateral tooth on pleuron. Sixth somite about 0.40 times as long as carapace and 1.70–1.80 times longer than high; ...