Elasmobranchii (hajar och rockor) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Leptochariidae (Barbeled houndsharks)
Etymology: Leptocharias: Etymology not explained, perhaps leptos (Gr.), slender; [Car]charias, i.e., a slender shark “very nearly related to Carcharias” (See ETYFish); smithii: In honor of Andrew Smith (1797-1872), Scottish military physician, explorer, ethnologist and zoologist, who collected many South African sharks and coined many of the shark names later used by Müller and Henle (See ETYFish).
Eponymy: Dr Sir Andrew Smith (1797–1872) was a Scotsman who joined the Army Medical Service (1819) after graduating from Edinburgh University. [...] (Ref. 128868), visit book page.
More on authors: Müller & Henle.
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
marina; brackvatten bottenlevande; djupintervall 10 - 75 m (Ref. 244), usually 10 - 60 m (Ref. 5377). Tropical; 20°C - 27°C; 22°N - 23°S, 26°W - 17°E
Eastern Atlantic: Mauritania to Namibia (Ref. 127434).
Size / Vikt / Age
Könsmognad: Lm ? range ? - ? cm
Max length : 77.0 cm TL hane/ej könsbestämd; (Ref. 244); 82.0 cm TL (female); common length : 55.0 cm TL hane/ej könsbestämd; (Ref. 26999)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Similar to species of Mustelus but nostrils with anterior flaps formed into distinct barbels (Ref. 5485).
Body shape (shape guide): elongated.
Found on the continental shelf, especially abundant off river mouths on muddy bottoms. Salinity: 35-36 ppt. Oxygen: 3-4 ppm. Feeds on small bottom and littoral organisms like crustaceans, bony fishes, octopi and sponges. Viviparous (Ref. 50449), with 7 young in a litter (Ref. 244). Dental sexual dimorphism is manifested by males having greatly enlarged anterior teeth. Utilized fresh, smoked or dried salted for human consumption, skin for leather.
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Viviparous, placental (Ref. 50449), with 7 young in a litter (Ref. 244). Distinct pairing with embrace (Ref. 205).
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fiskeri: mindre kommeriell
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 19.2 - 28, mean 26 °C (based on 116 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.8 ±0.49 se; based on food items.
Resiliens (Ref.
120179): Mycket låg, lägsta populationsfördubblingstid mer än 14 år (Fec=7).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (53 of 100).
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