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Пластиножаберные (акулы и скаты) (sharks and rays) > Squaliformes (Sleeper and dogfish sharks) > Squalidae (Dogfish sharks)
Etymology: Squalus: Genus name from Latin 'squalus' meaning shark (Ref. 6885, 27436); raoulensis: Named for its type locality, Raoul Island..
More on authors: Duffy & Last.

Environment: milieu / climate zone / depth range / distribution range экология

морской; пределы глубины ? - 320 m (Ref. 58439). Tropical

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

Southwest Pacific: known only from the upper insular slope west of Napier Island (off Raoul Island) and north of Raoul Island on the Kermadec Ridge.

Size / Вес / Возраст

Maturity: L_m ? range ? - ? cm
Max length : 68.1 cm TL самец/пол неопределен; (Ref. 58439); 72.9 cm TL (female)

Краткое описание морфология | морфометрия

This species is distinguished by the following combination of characters: width of mouth 2.4 - 2.7 times horizontal prenarial length; direct pre-second dorsal length 3.6 - 4 times pectoral-fin anterior margin, 2.7 - 2.9 times dorsal caudal margin; preoral length 3 - 3.2 times horizontal prenarial length, 2.3 - 2.5 times internarial width; bifurcate anterior nasal flap; first dorsal fin upright and rounded apically; dorsal-fin spines not robust, width of exposed bases 0.6 - 0.7% TL: first dorsal-fin height 1.2 - 1.4 times its inner margin length; second dorsal-fin height 0.85 - 0.93 times its inner margin length; pectoral-fin anterior margin 1.7 - 1.8 times its inner margin length; preventral caudal margin 1.7 - 2.3 times inner margin of pelvic fin; caudal fin pale with strongly demarcated, whitish posterior margin, no caudal bar; flank denticles unicuspid; monospondylous centra 41-43, precaudal centra 84-85, total centra 112-113; maximum adult size at least 73 cm TL (Ref. 58439).

Life cycle and mating behavior половая зрелость | размножение | нерест | икра | Fecundity | личинки

Distinct pairing with embrace (Ref. 205).

Основная ссылка Upload your references | ссылки | координатор : Compagno, Leonard J.V. | соавторы

Duffy, C.A.J. and P.R. Last, 2007. Squalus raoulensis sp. Nov., a new spurdog of the 'megalops-cubensis group' from the Kermadec Ridge. pp. 31-38. In P.R. Last, W.T. White and J.J. Pogonoski Descriptions of new dogfishes of the genus Squalus (Squaloidea: Squalidae). CSIRO Marine and Atmospheric Research Paper No. 014. 130 pp. (Ref. 58439)

Статус Красного Списка МСОП (Ref. 130435)

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Squalus raoulensis Duffy & Last, 2007