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)