Cape elephantfish

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Cape elephantfish
Cape Elephantfish.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Holocephali
Order: Chimaeriformes
Family: Callorhinchidae
Genus: Callorhinchus
Species:
C. capensis
Binomial name
Callorhinchus capensis
Egg case of a Cape elephantfish Egg case elephantfish DSF0874.jpg
Egg case of a Cape elephantfish

The Cape elephantfish (Callorhinchus capensis), also known as the St Joseph shark or josef, is a species of fish in the family Callorhinchidae. [2]

Contents

Description

The Cape elephantfish is a smooth silvery or bronze fish which grows to 120 cm in total length, with a digging proboscis on the front of its snout. The first dorsal fin has a large venomous spine in front of it. There are darker markings on the flanks and head. At maturity, the males have a pair of calcified claspers, paired retractable prepelvic graspers, and a door-knocker-like projection (tentaculum) on their heads. [2]

Distribution

It is found off the coasts of Namibia and South Africa inshore and down to 374 m. [3]

Ecology

The Cape elephantfish eats sea urchins, bivalves, crustaceans, gastropods, worms, and bony fish. Its predators include seals and sharks.

It is oviparous, laying two egg cases at a time. The egg case is large (about 25 cm) and spindle-shaped, with a ragged frill all around it. Females mature at 50 cm, males at 44 cm. Mating and egg laying occurs inshore. [1]

References

  1. 1 2 Finucci, B.; Pacoureau, N. (2020). "Callorhinchus capensis". IUCN Red List of Threatened Species . 2020: e.T60138A184670902. doi: 10.2305/IUCN.UK.2020-3.RLTS.T60138A184670902.en . Retrieved 15 November 2021.
  2. 1 2 Branch, G.M., Branch, M.L, Griffiths, C.L. and Beckley, L.E. 2010. Two Oceans: a guide to the marine life of southern Africa ISBN   978-1-77007-772-0
  3. Compagno, Leonard J. V.; Ebert, David A.; Smale, Malcolm J. (1989). Guide to the sharks and rays of southern Africa. Cape Town: Struik. ISBN   978-0-86977-880-7.