New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

🌊 Marine 🌡️ Temperate

Dwarf wrymouth

Cryptacanthodes aleutensis Gilbert, 1896
Max Length
30 cm
Max Weight
-
Lifespan
-
Trophic Level
3
Depth
46–350 m
Climate
Temperate
Resilience
-
Vulnerability
17.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Dwarf wrymouth (Cryptacanthodes aleutensis), first described by Gilbert, 1896 is a medium-sized fish in the family Cryptacanthodidae (order Perciformes). Adults typically reach 30.00 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 46 to 350 metres. It occurs in Temperate waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus.

Scientific Name
Cryptacanthodes aleutensis
Authority
Gilbert, 1896
Habitat
Marine
Climate
Temperate
Body Shape
Elongated
Max Length
30 cm
Depth Range
46–350 m
Trophic Level
3
Vulnerability
17.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 60 - 69; Dorsal soft rays (total): 0; Anal spines: 3; Anal soft rays: 45 - 49. Caudal rounded.: elongated.

🌀 Behaviour

Behavioural data for Dwarf wrymouth 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; demersal; non-migratory ; depth range 46 - 350 m . Temperate southeast Bering Sea to Eureka, northern California, USA.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Migration
Non-migratory
Trophic Level
3

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
30cm
Dorsal Spines
65
Anal Spines
3
Anal Rays
47

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Fishing Vulnerability
17.00/100
Low vulnerability
Trophic Level
3
Predator
Body Shape
Elongated
Climate Zone
Temperate
Described By
Gilbert, 1896

🌐 Names & Taxonomy

Language Common Names
🇬🇧English dwarf wrymouth
🇫🇷French terrassier nain
🇷🇺Russian Алеутский криворот

Scientific Synonyms

Scientific Name Author Year Status
Lyconectes aleutensis Gilbert 1896 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 3 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Dwarf wrymouth ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.