Freespine flathead (Ratabulus diversidens) fish species and information / pictures of Freespine flathead - Ratabulus diversidens

Freespine flathead (Ratabulus diversidens) fish species information

Scientific Name
Ratabulus diversidens

Common Name
Freespine flathead

Biology
Dorsal spines (total): 10; Dorsal soft rays (total): 10-11; Anal spines: 0; Anal soft rays: 12. This species is distinguished by the following characters: 80-93 anteroventrally slanted oblique scale rows above lateral line; snout length 29.5-32.3% HL, slightly decreasing proportionally with growth; pectoral fin length 13.9-15.8% SL; pelvic fin length 22.1-28.5% SL; nasal bone with tubercles in larger specimens; dorsal surface of head with large, pale to dark-brown irregularly shaped spots, body without spots dorsally; pelvic fin with large brown spots (Ref. 86254).

Classification

Classified By
McCulloch, 1914
Class
Ray-finned fishes (Actinopterygii)
Order
Scorpionfishes and Flatheads (Scorpaeniformes)
Family
Flatheads (Platycephalidae)

Distribution

Region
Indo-West Pacific
Distribution
Indo-West Pacific: Eastern Australia.
Range
17°S - 39°S

Environment

Climate
Subtropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
30 m
Depth To - meters
345 m
Zone
demersal
Environment
Marine; demersal; depth range 30 - 345 m (Ref. 86254)
Trophic Level
3.8 s.e. 0.63 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
39.1 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5625 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 (34 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