Scientific Name
Symphurus williamsi

Common Name
William's tonguefish

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 89-95; Anal spines: 0; Anal soft rays: 73 - 79; Vertebrae: 47 - 51

Classification

Classified By

Jordan & Culver, 1895

Class

Ray-finned fishes (Actinopterygii)

Order

Flatfishes (Pleuronectiformes)

Family

Tonguefishes (Cynoglossidae)

Distribution

Region

Eastern Pacific

Distribution

Eastern Pacific: Gulf of California to Peru.

Range

32°N -

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

52 m

Zone

demersal

Environment

Marine; demersal; depth range 0 - 52 m (Ref. 9294), usually 0 - 30 m (Ref. 9294)

Trophic Level

3.25 s.e. 0.39 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

11.6 cm

Common Length

7.5 cm

Phylogenetic Diversity Index

PD50 = 0.5000 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 (26 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)