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🌊 Marine Least Concern 🌡️ Subtropical

Kermadec clingfish

Flexor incus Conway, Stewart & Summers, 2018
Max Length
2.7 cm
Max Weight
Lifespan
Trophic Level
3.3
Depth
0–28 m
Climate
Subtropical
Resilience
High
Vulnerability
21.00/100
Typical Length
Depth Zone

📖 Overview

Known only from the intertidal and subtidal waters of the Kermadec Islands, including Raoul Island and L’Esperance Rock. Most of the specimens collected using ichthyocides were from rock pools and from shallower subtidal areas (down to 9 meters) over rock and coral rubble. A single specimen has been observed and photographed at 28 meters in depth .

Scientific Name
Flexor incus
Authority
Conway, Stewart & Summers, 2018
Habitat
Marine
Climate
Subtropical
IUCN Status
LC
Max Length
2.7 cm
Depth Range
0–28 m
Trophic Level
3.3
Resilience
High
Vulnerability
21.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Flexor
Flexor
Species
Kermadec clingfish
Flexor incus

🐟 Physical Description

This species is distinguished by the following characters: head and anteriormost part of body similar in width; relatively elongate body with a small, double adhesive disc beneath the anteriormost part of the body; an oval-shaped gap between the premaxillae formed by a semicircular indentation along medial edge of premaxilla; premaxilla with a single row of teeth, with 2-3 peg-like, conical teeth anteriorly at, and adjacent to, symphysis and 10-12 strongly laterally compressed, incisiviform teeth with strongly recurved cusp, along the outer margin of bone; lower jaw with a single row of 14-16 small, conical teeth with sharply pointed and slightly recurved tip; posterior tip of the basipterygium expanded and articulating with anteromedial edge of ventral postcleithrum via a shallow concave facet; mandibular part of preoperculo-mandibular lateral line canal absent; lachrymal canal with 2 pores; upper and lower lip simple, uniform in thickness along jaw margin .Cross section: oval.

🌀 Behaviour

Behavioural data for Kermadec clingfish is currently being reviewed.

🦐 Diet

Diet information for Kermadec clingfish is currently being compiled.

🥚 Reproduction

Reproduction data for Kermadec clingfish is currently being compiled.

🌍 Habitat & Distribution

Marine; benthopelagic; depth range 0 - 28 m , usually 0 - 9 m . Subtropical Pacific Ocean: Australia to New Zealand and New Caledonia.

🌿 Ecology

Zone Preferences
🌊 Marine
Trophic Level
3.3±0.2

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
2.7cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2024

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
21.00/100
Low vulnerability
Trophic Level
3.3
Predator
Climate Zone
Subtropical
Described By
Conway, Stewart & Summers, 2018

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