Overview

Comprehensive Description

Biology

Found on the upper slope, on or near the bottom (Ref. 5578). Length recorded is from an immature specimen; size of adults unknown (Ref. 247). Ovoviviparous (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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome: FAO. (Ref. 247)
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Distribution

Western Indian Ocean: Kenya to South Africa, including Madagascar (Ref. 5578).
  • 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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome: FAO. (Ref. 247)
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Physical Description

Morphology

Dorsal spines (total): 2; Dorsal soft rays (total): 0; Analspines: 0; Analsoft rays: 0
  • Bass, A.J., L.J.V. Compagno and P.C. Heemstra 1986 Squalidae. p. 49-62. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 6577)
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Size

Max. size

27.0 cm TL (male/unsexed; (Ref. 247))
  • 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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome: FAO. (Ref. 247)
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Diagnostic Description

A slim lanternshark with 2 longitudinal rows of greatly enlarged, hooked denticles along the flanks; other denticles small, conical and not arranged in lines (Ref. 5578). Grayish black above, underside black with an elongated broad black mark above, in front of and behind the pelvic fins; other elongated black marks at base and along axis of caudal fin (Ref. 5578).
  • Bass, A.J., L.J.V. Compagno and P.C. Heemstra 1986 Squalidae. p. 49-62. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 6577)
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Ecology

Habitat

Environment

bathydemersal; marine; depth range 200 - 500 m (Ref. 247)
  • 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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome: FAO. (Ref. 247)
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Life History and Behavior

Life Cycle

Distinct pairing with embrace (Ref. 205).
  • Breder, C.M. and D.E. Rosen 1966 Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p. (Ref. 205)
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Conservation

Threats

Least Concern (LC)
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: of no interest
  • Coppola, S.R., W. Fischer, L. Garibaldi, N. Scialabba and K.E. Carpenter 1994 SPECIESDAB: Global species database for fishery purposes. User's manual. FAO Computerized Information Series (Fisheries). No. 9. Rome, FAO. 103 p. (Ref. 171)
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