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 Whitespotted bullhead shark (Heterodontus ramalheira)

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

 Photo

Whitespotted bullhead shark
No image of Whitespotted bullhead shark found in the Shark Database
 Range Map

Earth Map


 Systematics

Phylum: Vertebates (Chordata)

Class: Carlilagenous Fishes (Chondrichthyes)
  Order: Bullhead sharks (Heterodontiformes)
    Family: Bullhead sharks (Heterodontidae)
      Genus: Heterodontus (Heterodontus)


 Name

Scientific: Heterodontus ramalheira
German: Weisspunkt-Stierkopfhai
English: Whitespotted bullhead shark, Mozambique bullhead
French: Requin dormeur chabot
Spanish: Dormil√≥n boquigrande


 Appearance

Cylindrical trunk with conical head. Small spiracles behind and below the eyes. Very short snout, bluntly rounded. Supraorbital ridges moderately high, ending abruptly behind the eyes. Both dorsal fins with a stout fin spine. Origin of first dorsal fin over pectoral fin bases. Origin of second dorsal fin over the free ends of the pelvic fins. Large pectoral fins. Anal fin present.

 Coloration

Numerous small white spots over reddish brown body.

 Distribution

Western Indian Ocean: Southern Mozambique, Arabian Peninsula (eastern shore).

 Biology

A rare species. Lives on the outer continental shelf and uppermost slope in deepwater between about 100 and 275 m.

 Feeding

Seems to feed on crabs.

 Size

Maximum size about 83 cm.

 Reproduction

Most likely oviparous (egg laying), although egg cases have not been found so far.

 Similar Species

Although other bullhead sharks have a similar appearance, the distribution and color pattern of this species are distinctive.

 Endangerment

Status in the IUCN Red List(Version 2001):

Main criterion: > DD (Data Deficient)
Sub criterion:
Trend: Unknown


 Danger to Humans

Harmless.



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