Whitehead's sawtooth pellonuline (Potamothrissa whiteheadi) fish species and information / pictures of Whitehead's sawtooth pellonuline - Potamothrissa whiteheadi

Whitehead's sawtooth pellonuline (Potamothrissa whiteheadi) fish species information

Scientific Name
Potamothrissa whiteheadi

Common Name
Whitehead's sawtooth pellonuline

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 12-18; Anal spines: 0; Anal soft rays: 16 - 27. Pre-pelvic scutes not strongly keeled, beginning under or behind base of last pectoral fin ray, 8 to 10 + 7 to 9. Snout rounded; lower jaw not projecting, exactly meeting tip of upper jaw when mouth closed, deepest at mid-point, with small saw-like teeth on each side; pre-maxillae with small teeth pointing downward; maxilla very slender; second supra-maxilla minute, virtually no shaft.

Classification

Classified By

Poll, 1974

Class

Ray-finned fishes (Actinopterygii)

Order

Herrings (Clupeiformes)

Family

Herrings, shads and sardines (Clupeidae)

Distribution

Region

Africa

Distribution

Africa: Known only from the type locality, the Hombo River, tributary of the Luhoho River, about 1?30'S 28?30'E, Congo system.

Range

2°S - 5°S

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

pelagic

Environment

Freshwater; pelagic

Trophic Level

3.12 s.e. 0.36 Based on size and trophs of closest relatives

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

4.7 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.6250 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 (10 of 100)

Resilience

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

Threat To Humans

  Harmless

IUCN Red List Status

  Data deficient (DD)