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

🌊 Marine 🌡️ Deep-water

Northern smoothtongue

Leuroglossus schmidti Rass, 1955
Max Length
20 cm
Max Weight
-
Lifespan
-
Trophic Level
3.1
Depth
394–1800 m
Climate
Deep-water
Resilience
Medium
Vulnerability
43.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Adults are generally found at depths greater than 150 m during the day. Oviparous, with planktonic eggs and larvae , which are distributed in the sub-arctic gyre south to about 47°N .

Scientific Name
Leuroglossus schmidti
Authority
Rass, 1955
Habitat
Marine
Climate
Deep-water
Body Shape
Elongated
Max Length
20 cm
Depth Range
394–1800 m
Trophic Level
3.1
Resilience
Medium
Vulnerability
43.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 10 - 11; Anal spines: 0; Anal soft rays: 11 - 14; Vertebrae: 47 - 52. Body slender and compressed. Anal fin base short, and almost equal to dorsal fin base. snout pointed. Eye diameter shorter than snout length. Upper jaw shorter than lower jaw. Teeth present on lower jaw, prevomer, palatine, but not on upper jaw. Branchiostegals, 2. Color silvery, dusky on dorsal surface and fins .: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Northern smoothtongue is currently being reviewed.

🦐 Diet

Diet information for Northern smoothtongue is currently being compiled.

🥚 Reproduction

🐣 Oviparous

Oviparous .

🌍 Habitat & Distribution

Marine; bathypelagic; depth range 394 - 1800 m . Deep-water; 61°N - North Pacific: southeastern Hokkaido, Japan to Navarin Canyon in the Bering Sea and southern British Columbia, Canada.

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water
Trophic Level
3.1

📐 Morphometrics

Length–Weight Relationship: W = 0.00617 × L2.96 (TL)
Max TL
20cm
Dorsal Rays
11
Anal Rays
13
Vertebrae
50

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
43.00/100
Moderate vulnerability
Trophic Level
3.1
Predator
Body Shape
Elongated
Climate Zone
Deep-water
Described By
Rass, 1955

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 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 Northern smoothtongue ↗
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.