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 Crocodile shark (Pseudocarcharias kamoharai)

  Index
> Photo
> Range Map
> Systematics
> Name
> Appearance
> Coloration
> Distribution
> Biology
> Feeding
> Size
> Reproduction
> Similar Species
> Endangerment
> Danger to Humans

 Photo

Crocodile shark
No image of Crocodile shark found in the Shark Database
 Range Map

Earth Map


 Systematics

Phylum: Vertebates (Chordata)

Class: Carlilagenous Fishes (Chondrichthyes)
  Order: Mackerel sharks (Lamniformes)
    Family: Crocodile sharks (Pseudocarchariidae)
      Genus: Pseudocarcharias (Pseudocarcharias)


 Name

Scientific: Pseudocarcharias kamoharai
German: Krokodilhai
English: Crocodile shark
French: Requin crocodile
Spanish: Tiburón cocdrilo


 Appearance

Small and very unique looking shark. Very big eyes, no nictitating membrane. Long gill slits. Small pectoral fins, small dorsal fins. Weak keels on peduncle, precaudal pit present. Asymetrical caudal fin (not lunate-shaped).

 Coloration

Greyish-brown with white ventral surface. Sometimes seen with white dots. All fins have white margins.

 Distribution

Probably worldwide in tropical waters. Western Atlantic: Cuba to northern Brazil. Eastern Atlantic: Cape Verde Islands to South Africa. Western Indian Ocean: Mozambique. Western Pacific: Japan, Taiwan, Korea. Central Pacific: Marquesas, Hawaiian Islands. Eastern Pacific: Baja California, Costa Rica, Panama.

 Biology

A rare to locally abundant species. Prefers epipelagic and oceanic waters down to a depth of 300 m. The firm musculature, the small precaudal fins and the large caudal fin suggest they may be active swimmers. Based on their big eyes, nocturnal activity is likely.

 Feeding

Unknown. Probably invertebrates and fishes.

 Size

Average size between 60 cm and 80 cm. Maximum total length about 110 cm.

 Reproduction

Aplacental viviparous (ovoviviparous), with uterine cannibalism. Size at birth 40 cm. Males reach sexual maturity at 75 cm (minimum), females at 90 cm (minimum).

 Similar Species

Unmistakable.

 Endangerment

Status in the IUCN Red List(1994):

Main criterion: > LR/nt (Low Risk/Near Threatened (1994))
Sub criterion:
Trend: Unknown


 Danger to Humans

Harmless.



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