Pygmy ribbontail catshark (Eridacnis radcliffei) fish species and information / pictures of Pygmy ribbontail catshark - Eridacnis radcliffei

Pygmy ribbontail catshark (Eridacnis radcliffei) fish species information

Scientific Name
Eridacnis radcliffei

Common Name
Pygmy ribbontail catshark

Biology
Occurs over muddy bottoms, on the upper continental and insular slopes and outer shelves. Feeds mainly on small bony fishes and crustaceans, with squid a lesser item in the diet. One of the two smallest living sharks. Ovoviviparous , with 1 to 2 pups in a litter.

Classification

Classified By

Smith, 1913

Class

Sharks and Rays (Elasmobranchii)

Order

Ground sharks (Carcharhiniformes)

Family

Finback catsharks (Proscylliidae)

Distribution

Region

Indo-West Pacific

Distribution

Indo-West Pacific: widely distributed but with spotty records from Tanzania, the Gulf of Aden, India , Andaman Islands, Viet Nam, and the Philippines. The immense range of this species is striking compared to the limited ranges of other members of the genus.

Range

22°N - 10°S

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

71 m

Depth To - meters

766 m

Zone

bathydemersal

Environment

Marine; bathydemersal; depth range 71 - 766 m

Trophic Level

4.2 s.e. 0.68 Based on diet studies.

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

23.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.6328 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low vulnerability (13 of 100)

Resilience

Very Low, minimum population doubling time more than 14 years (Fec=1)

Threat To Humans

Harmless (Ref. 13566)

IUCN Red List Status

Least Concern (LC)