Littoral cusk (Monothrix polylepis) fish species and information / pictures of Littoral cusk - Monothrix polylepis

Littoral cusk (Monothrix polylepis) fish species information

Scientific Name
Monothrix polylepis

Common Name
Littoral cusk

Biology
Dorsal soft rays (total): 93-104; Anal soft rays: 64 - 76; Vertebrae: 45 - 47. This species possess the following set of characters: anterior nostril low on snout; copulatory organ of male with a simple and small flap-like pair of (outer) pseudoclaspers; small, size 76869).

Classification

Classified By

Ogilby, 1897

Class

Ray-finned fishes (Actinopterygii)

Order

Cusk eels (Ophidiiformes)

Family

Viviparous brotulas (Bythitidae)

Distribution

Region

Southwest Pacific

Distribution

Southwest Pacific: eastern Australia. Record from Japan (Machida, 1992) is erroneous (Ref. 34024).

Range

Unknown

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

reef-associated

Environment

Marine; reef-associated

Trophic Level

3.2 s.e. 0.51 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

True

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

5.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 1.0000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of no interest

Vulnerability

Low vulnerability (11 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated