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🌊 Marine Least Concern 🌡️ Tropical

Longsnout flathead

Thysanophrys chiltonae Schultz, 1966
Max Length
25 cm
Max Weight
-
Lifespan
-
Trophic Level
3.8
Depth
0–100 m
Climate
Tropical
Resilience
High
Vulnerability
27.00/100
Typical Length
18 cm
Depth Zone
reef

📖 Overview

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

Scientific Name
Thysanophrys chiltonae
Authority
Schultz, 1966
Habitat
Marine
Climate
Tropical
Body Shape
Fusiform / normal
IUCN Status
LC
Max Length
25 cm
Depth Range
0–100 m
Latitude
24°S – 30°N
Trophic Level
3.8
Resilience
High
Vulnerability
27.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🐟 Physical Description

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 . 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.: fusiform / normal.

🌀 Behaviour

Behavioural data for Longsnout flathead is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; reef-associated; non-migratory; depth range 0 - 100 m , usually 0 - 20 m . Tropical; 30°N - 24°S Indian Ocean to Japan and Pacific Ocean islands to as far as the Marquesas.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Migration
Non-migratory
Trophic Level
3.8±0.63
Food Items

crustaceans, crabs and prawns, also on fishes

📐 Morphometrics

Length–Weight Relationship: W = 0.00646 × L3.05 (TL)
Max TL
25cm
Dorsal Spines
9
Dorsal Rays
12
Anal Rays
12

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2015

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
3.8
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
30°N – 24°S
Described By
Schultz, 1966

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Longsnout flathead
🇫🇷French Platycéphale clin d'œil
🇯🇵Japanese Kuroshimagochi · クロシマゴチ

Scientific Synonyms

Scientific Name Author Year Status
Cociella chiltonae Schultz 1966 Synonym
Inegocia chiltonae Schultz 1966 Synonym
Platycephalus chiltonae Schultz 1966 Synonym
Thysanophrys chiltoni Schultz 1966 Synonym
Thysanophrys cluitouse Schultz 1960 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 4 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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