A new species of Careproctus (Cottoidei: Liparidae) from the Sea of Okhotsk and a redescription of the blacktip snailfish Careproctus zachirus

Matsuzaki, Koji; Mōri, Takayuki; Kamiunten, Moeko; Yanagimoto, Takashi; Kai, Yoshiaki

doi:10.1007/s10228-020-00734-w

Cited by 11 publications

(3 citation statements)

References 12 publications

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“…Several new Careproctus species have recently been described from the West Pacific: C. iacchus Kai, Tohkairin, Fujiwara et Hamatsu, 2018, C. kamikawai Orr, 2012, C. lycopersicus Orr, 2012, C. nelsoni Orr, 2016, C. notosaikaiensis Kai, Ikeguchi et Nakabo, 2011, C. rotundifrons Sakurai et Shinohara, 2008, C. shigemii Matsuzaki, Mori, Kamiunten, Yanagimoto et Kai, 2020, C. staufferi Orr, 2016, C. surugaensis Murasaki, Takami et Fukui, 2017. In all of these of species, teeth are three-lobed and the number of vertebrae is less than in C. schmidti, from 42 to 58 versus 63 (Sakurai and Shinohara, 2008;Kai et al, 2011Kai et al, , 2018Orr, 2012Orr, , 2016Murasaki et al, 2017;Matsuzaki et al, 2020). The deep-sea species C. pulcher, C. globulus, C. laperousei, and C. brevipectoralis described from the Bussol Strait of the Kuril Archipelago (Chernova et al, 2020) also have fewer vertebrae, 46 or 55-57 versus 63 in C. schmidti.…”

Section: Methodsmentioning

confidence: 99%

“…The taxonomy of the group is being actively developed. New species are still described, including those from the North Pacific Ocean (Orr and Maslenikov, 2007;Sakurai and Shinohara, 2008;Machi et al, 2012;Orr, 2012;Orr et al, 2015Orr et al, , 2020Murasaki et al, 2017;Chernova et al, 2020;Matsuzaki et al, 2020). The genus Careproctus is the most specious in the family, with up to 140 taxa; about 50 of species live in the North Pacific Ocean.…”

Section: Introductionmentioning

confidence: 99%

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A New Species of Snailfishes (Liparidae) of the Genus Careproctus from the Northern Slope of the Aleutin Basin (Bering Sea)

2021

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Abstract— A new species of snailfishes Careproctus schmidti sp. nov. from the northwestern part of the Bering Sea is described. The specimen was caught in the mesobenthal of the Aleutian Basin at a depth of 852–862 m (holotype ZIN no. 56 620—female TL 194 mm). It is distinguished from the majority of congeners of the North Pacific Ocean by a set of features: a large number of vertebrae (63) and rays in the fins (D 56, A 50, P 34, C 10), the presence of two pairs of pleural ribs, a relatively elongated (21% SL) pectoral fin with a notch and short lower lobe (12% SL), two suprabranchial pores, simple teeth, naked skin, and black peritoneum. In terms of meristic features, the new species is similar to three North Pacific species, but it differs from C. colletti in a short lower lobe of the pectoral fin, a flattened disc of triangular outlines, and a longer gill slit. It differs from C. roseofuscus by a lower body, a pectoral fin ventrally located and anus which opens immediately behind the disc. It differs from C. ambustus in purple-lilac color, fewer in number simple teeth with sharp apexes, in vertical and higher disposition of gill slit, shorter lower lobe of the pectoral fin, disc shape and position of the anus. The presence of an ovipositor may indicate existence of complicated reproductive behavior (such as carcinophilia or other types of reproductive commensalism). The northwestern slope of the Aleutian Basin, where a specimen of C. schmidti was caught, is located in the zone of influence of the Bering Slope Current and seasonal upwelling associated with the rise of deep waters. The composition of the ichthyocene in the area of capture is given, including up to 20 species, dominated by Macrouridae.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A New Species of Snailfishes (Liparidae) of the Genus Careproctus from the Northern Slope of the Aleutin Basin (Bering Sea)

2021

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“…The article should be cited by using the doi number. 2011, 2018, 2021Machi et al 2012;Nakabo and Kai 2013;Orr et al 2015Orr et al , 2020Murasaki et al 2017;Matsuzaki et al 2020). Conversely, only three species are currently known from the Pacific coast of southern Japan: Careproctus rhodomelas Gilbert and Burke 1912a, Careproctus rotundifrons Sakurai and Shinohara 2008, and Careproctus surugaensis Murasaki, Takami and Fukui 2017(Sakurai and Shinohara 2008Murasaki et al 2017Murasaki et al , 2021b.…”

Section: Introductionmentioning

confidence: 99%

A new snailfish of the genus Careproctus (Cottoidei: Liparidae) from the Pacific coast of southern Japan

et al. 2022

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A new snailfish, Careproctus tomiyamai, is described on the basis of four specimens collected from Suruga Bay, Tosa Bay, and the Hyuga-nada Sea, southern Japan (600–808 m depth). It is distinguished from all currently recognized congeners by the following combination of characters: total vertebrae 56–58; dorsal-fin rays 51 or 52; anal-fin rays 44–46; pectoral-fin rays 30–32; pyloric caeca 9–13; body slender, maximum depth 15.6–22.8% standard length (SL); teeth on both jaws strongly trilobed; pectoral fin shallowly notched, longest lower lobe ray 9.8–14.3% SL [46.0–60.4% head length (HL)]; proximal pectoral radials 4 (3 + 1), upper portion of 1st and 3rd radials, and lower portion of 2nd radial notched; fenestrae in pectoral girdle 2, between scapula and 1st proximal radial, and 2nd and 3rd proximal radials; pelvic disk oval, wider than long, length 3.4–4.3% SL (14.2–19.3% HL), moderately to deeply cupped; peritoneum black in preserved specimens.

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Fish Diversity of Subarctic Waters in Japan

Kai

2022

Fish Diversity of Japan

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A new species of Careproctus (Cottoidei: Liparidae) from the Sea of Okhotsk and a redescription of the blacktip snailfish Careproctus zachirus

Cited by 11 publications

References 12 publications

A New Species of Snailfishes (Liparidae) of the Genus Careproctus from the Northern Slope of the Aleutin Basin (Bering Sea)

A New Species of Snailfishes (Liparidae) of the Genus Careproctus from the Northern Slope of the Aleutin Basin (Bering Sea)

A new snailfish of the genus Careproctus (Cottoidei: Liparidae) from the Pacific coast of southern Japan

Fish Diversity of Subarctic Waters in Japan

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