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Cephaloscyllium silasi  (Talwar, 1974)

Indian swellshark
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Cephaloscyllium silasi
Picture by Siripittrakul, B. & T. Krajangdara

Classification / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (hajar och rockor) (sharks and rays) > Carcharhiniformes (Ground sharks) > Scyliorhinidae (Cat sharks)
Etymology: Cephaloscyllium: Greek, kephale = head + skylion = dogfish (Ref. 80388).

Miljö / Klimat / Range Ekologi

; marina djupbottenlevande; djupintervall 250 - 500 m (Ref. 95495).   Deep-water, preferred ?; 16°N - 9°N

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Western Indian Ocean: vicinity of Quilon, India (Ref. 244) and Sauqira Bay, Oman (Ref. 10914).

Size / Vikt / Age

Maturity: Lm ?  range ? - 36.7 cm
Max length : 36.0 cm TL hane/ej könsbestämd; (Ref. 95495); 45.0 cm TL (female)

Short description Morfologi | Morfometri

This is a small shark with the following characters: stout body with expanded belly; labial furrows absent but a vestigial lower labial furrow may be present; anterior nasal flaps are broadly triangular; head depressed, flattened and broad, rounded in dorsal and ventrally; mouth large and arched; 5 gill slits, dorsolaterally placed and last two gill slits over pectorals, the 1-3 gill slits are subequal in length, 5th smallest; eyes dorsolateral and slit like; large mouth, arched or crescentic; mouth width 0.6 times HL; first dorsal origin slightly in front of pelvic insertion and placed above pelvics (Ref. 95495).

Biologi     Ordlista (t.ex. epibenthic)

Found on the uppermost continental slope. Probably a dwarf species. Oviparous (Ref. 50499). This species could possibly attains a maximum size of 50.0 cm TL, with males reported (Ref. 26842) to reach length at maturity at 36.7 cm TL. A 45.0 cm female was found gravid and have two egg cases, one in each uterus, containing visible embryos (85.1-86.2 mm) with attached yolk sac. Stomach examined contains crustaceans and cephalopods (Ref. 95495).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).

Main reference Upload your references | referenser | Koordinator : Compagno, Leonard J.V. | Medarbetare

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. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fiskeri: saknar intresse
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