Southern cavefish (Typhlichthys subterraneus) fish species and information / pictures of Southern cavefish - Typhlichthys subterraneus

Southern cavefish (Typhlichthys subterraneus) fish species information

Scientific Name
Typhlichthys subterraneus

Common Name
Southern cavefish

Biology
Dorsal soft rays (total): 7-10; Anal soft rays: 7 - 10; Vertebrae: 28 - 29. Pink-white. No eyes (vestigial eye tissues under skin). Large, broad head. Caudal fin with 0-2 rows of papillae (Ref. 5723) and a vertical basal row (Ref. 10294); 10-15 branched caudal rays (Ref. 5723).

Classification

Classified By

Girard, 1859

Class

Ray-finned fishes (Actinopterygii)

Order

Trout-perches, Pirate perches and Cavefish (Percopsiformes)

Family

Cavefishes (Amblyopsidae)

Distribution

Region

North America

Distribution

North America: portions of Alabama, Georgia, Tennessee, Kentucky, Indiana, Missouri and Arkansas, U.S.A.

Range

39°N - 34°N

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Freshwater; demersal

Trophic Level

3.29 s.e. 0.37 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

9.0 cm

Common Length

5.0 cm

Phylogenetic Diversity Index

PD50 = 1.0176 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 to moderate vulnerability (28 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.43; tm=2; tmax=4)

Threat To Humans

Harmless

IUCN Red List Status

Vulnerable (VU) (D2)