Squalus blainville

(Risso, 1827)

Longnose spurdog
Classification: Elasmobranchii Squaliformes Squalidae

Reference of the original description

Risso, A. (1827)
Histoire naturelle des principales productions de l'Europe méridionale et particulièrement de celles des environs de Nice et des Alpes-maritimes. F.G Levrault, Paris. Vol. 3, 480 pp

Synonyms / new combinations and misspellings
Acanthias blainville, Acanthias blainvillei, Acanthias blainvilli, Acanthias blainvillii, Acanthias fernandezianus, Spinax blainvillii, Spinax fernandezianus, Squalus aff. blainvillei, Squalus blainvilii, Squalus blainvillei, Squalus blainvillii, Squalus cf. blainvillei

Types
Squalus blainville
XXXX: No types known;

Description :

Citation: Squalus blainville (Risso, 1827): In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 11/2024

Please send your images of "Squalus blainville" to info@shark-references.com

Squalus blainville (Risso, 1827), ERB 0979, male, 54, 5 TL, Mediterranean, France © Frederik H. Mollen (Elasmobranch Research Belgium)

Common names
$deu $T$$ Blainville-Dornhai, $deu $T$$ Blainvilles Dornhai, $deu $T$$ Blainvilles doornhaai, spa

Galludo,

Pinchuo, $fra $T$$ Aiguillat coq, eng

Bigeye dogfish, eng

Dogfish,

Longnose dogshark, eng

Longnose spurdog, ita

Spinarolo bruno, por

Ferranho,

Galhudo,

Galhudo-cubano, por

Melga-de-ferrão, Mazzola bix-xewka (malta), Mazzola tax-xewka (malta)

Short Description
A large dogfish species with a wide head. Moderately long, rounded–parabolic mouth. Preoral length about 1.0 to 1.3 times mouth width. Oblique–cusped cutting teeth in both jaws. Stocky to moderately slender body. Pectoral fins are broad, semifalcate and with slightly concave posterior margins. Two unequal–sized dorsal fins with ungrooved high spines. First dorsal fin very high and short, with slender and very tall spine with spine origin over pectoral inner margins. No anal fin or subterminal notch on caudal fin. Upper precaudal pit and lateral keels on caudal peduncle. No white spots on sides, dorsal fins without conspicuous dark markings, dusky edges and tips, caudal fin without conspicuous dark markings. [17836].

Distribution
Eastern Atlantic: Bay of Biscay to Mediterranean, Morocco, Senegal to Namibia (these records may include other species in addition to Squalus blainvillei). Although reported from the Canary Islands (e.g. Ref. 247), it is most likely based on misidentifications of Squalus megalops [17687]. Western Pacific: southern Japan and Taiwan. Nominal records of Squalus blainvillei or Squalus fernandinus from the western Atlantic (North Carolina, USA to northern Gulf of Mexico; Argentina), Indian Ocean (South Africa, Mozambique, Madagascar, Tanzania and India) and the Pacific (Australia, New Zealand, New Caledonia, Hawaii and northern Chile), as well as some records from the northwest Pacific and eastern Atlantic are based at least in part on Squalus mitsukurii and possibly other species. Whether Squalus blainvillei itself is as wide-ranging as reported for blainvillei-group dogfishes (including Squalus mitsukurii) remains to be determined. Source: www.gbif.org

Human uses
fisheries: commercial

Biology
Ovoviviparous, with 3 to 4 young per litter. Young born at about 23 cm.
theMediterranean Sea: S. blainville is a long lived (maximum observedage of 28 yrs), slow growing (k = 0.03 and 0.08 yr−1for femalesand males, respectively) and late maturing species (L50= 568.1 and L50= 460.6 mm for females and males, respectively). Actually, aging 569 individuals revealed that the species attains sexual maturity at a later age than it has been so far known (T50= 17.03 and 11.31yrs for females and males, respectively) [22811].

Size / Weight / Age
100.0 cm TL (male/unsexed; (Ref. 36731)); 64 cm NG (female)

Habitat
demersal; brackish; marine; depth range 16 - 780 m [17735]

Remarks
shark-references Species-ID=6715;

Parasites (arranged by Jürgen Pollerspöck)
Conoidasida