Scientific Name
Thysanophrys chiltonae

Common Name
Longsnout flathead

Biology
Dorsal spines (total): 8 - 9; Dorsal soft rays (total): 11-12; Anal spines: 0; Anal soft rays: 12. Body and head mottled with dark brown and buff; fin rays with dark brown or black spots; dark brown saddle blotch on top of caudal peduncle (Ref. 4315). Least interorbital width going 3.8-7.2 times in diameter of eye. Base of lower opercular spine concealed by scales. Anterior 1-3, usually 3, lateral line scales bearing a small spine. Iris lappet bearing short branches with bifurcate tips.

Classification

Classified By

Schultz, 1966

Class

Ray-finned fishes (Actinopterygii)

Order

Scorpionfishes and Flatheads (Scorpaeniformes)

Family

Flatheads (Platycephalidae)

Distribution

Region

Indo-Pacific

Distribution

Indo-Pacific: Red Sea (Ref. 12541) and East Africa to the Marquesan Islands, north to the Ryukyu Islands (Ref. 559), south to northern Australia.

Range

30°N - 24°S

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

1 m

Depth To - meters

80 m

Zone

reef-associated

Environment

Marine; reef-associated; non-migratory; depth range 1 - 80 m (Ref. 9710), usually ? - 18 m (Ref. 9790)

Trophic Level

3.79 s.e. 0.63 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

25.0 cm

Common Length

18.0 cm

Phylogenetic Diversity Index

PD50 = 0.5156 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: subsistence fisheries

Vulnerability

Low to moderate vulnerability (25 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