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Thysanophrys chiltonae  Schultz, 1966

Longsnout flathead
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Thysanophrys chiltonae   AquaMaps   Data sources: GBIF OBIS
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Image of Thysanophrys chiltonae (Longsnout flathead)
Thysanophrys chiltonae
Picture by Steene, R.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Scorpaeniformes (Scorpionfishes and flatheads) > Platycephalidae (Flatheads)
Etymology: Thysanophrys: Greek, thysanos = tassel + Greek, ophrys = eye brow (Ref. 45335).   More on author: Schultz.

Environment / Climate / Range Ecology

Marine; reef-associated; non-migratory; depth range 0 - 100 m (Ref. 9710), usually 0 - 20 m (Ref. 92868).   Tropical; 30°N - 24°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-Pacific: common and wide-ranging, from the Western Indian Ocean to Japan and Pacific Ocean islands to as far as the Marquesas.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 25.0 cm TL male/unsexed; (Ref. 48635); common length : 18.0 cm TL male/unsexed; (Ref. 30573)

Short description Morphology | Morphometrics

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.

Biology     Glossary (e.g. epibenthic)

Inhabits sand areas adjacent to coral reefs (Ref. 9790). Seldom noticed for it buries itself in the sand (often partially). Usually in small groups (Ref. 48635). Feeds on crustaceans, crabs and prawns, also on fishes.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Randall, J.E., G.R. Allen and R.C. Steene, 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 108899)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: subsistence fisheries
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 25.4 - 29, mean 27.9 (based on 980 cells; Ref. 115970).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5010   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00631 (0.00367 - 0.01084), b=3.07 (2.91 - 3.23), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic Level (Ref. 69278):  3.8   ±0.63 se; Based on food items.
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low to moderate vulnerability (25 of 100) .
Price category (Ref. 80766):   High.