Oman bullhead shark (Heterodontus omanensis) fish species and information / pictures of Oman bullhead shark - Heterodontus omanensis

Oman bullhead shark (Heterodontus omanensis) fish species information

Scientific Name
Heterodontus omanensis

Common Name
Oman bullhead shark

Biology
Vertebrae: 98. Diagnosis: Four dark saddles, more or less equally distributed along the head and body. Relatively small, dark pigmented dorsal fins, each with a white distal streak. Large pectoral fins. Unique egg case, with 2 long tendrils extending from its base and flanges with 2 turns. This species differs from H. japonicus in having 4 dark saddles (vs. 11-14); a smaller first-dorsal fin (9.3-10.9% TL vs. 11-21% TL); an egg case of 2 turns (vs. 3), bearing extremely long tendrils (vs. short) (Ref. 54826).

Classification

Classified By

Baldwin, 2005

Class

Sharks and Rays (Elasmobranchii)

Order

Bullhead and Horn sharks (Heterodontiformes)

Family

Bullhead / horn / Port Jackson sharks (Heterodontidae)

Distribution

Region

Western Indian Ocean

Distribution

Western Indian Ocean: Central Oman.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

72 m

Zone

demersal

Environment

Marine; demersal; depth range ? - 72 m (Ref. 54826)

Trophic Level

3.49 s.e. 0.56 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

56.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5059 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low to moderate vulnerability (28 of 100)

Resilience

Unknown

Threat To Humans

Harmless

IUCN Red List Status

Data deficient (DD)