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

💧 Freshwater 🌡️ Subtropical

Blunt-snout small-toothed sleeper

Microdous amblyrhynchos Hu, Lan & Li, 2023
Max Length
9 cm
Max Weight
Lifespan
Trophic Level
3.2
Depth
Climate
Subtropical
Resilience
Medium
Vulnerability
34.00/100
Typical Length
Depth Zone

📖 Overview

Found in small creeks or rivers with slow moving, clear water and rocky bottom. Some remains of chitin exoskeleton of crustaceans were found in the anus opening of the holotype, suggesting that this species is carnivorous. During their spawning seasons, the male’s head would turn black with several orange dots on the body sides .

Scientific Name
Microdous amblyrhynchos
Authority
Hu, Lan & Li, 2023
Habitat
Freshwater
Climate
Subtropical
Max Length
9 cm
Trophic Level
3.2
Resilience
Medium
Vulnerability
34.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Microdous
Microdous
Species
Blunt-snout small-toothed sleeper
Microdous amblyrhynchos

🐟 Physical Description

Dorsal spines (total): 8 - 9; Dorsal soft rays (total): 9 - 10; Anal spines: 1; Anal soft rays: 8 - 9; Vertebrae: 34. This species is distinguished by the following character states: snout blunt, snout length/ head length ratio 0.26-0.28, mean 0.27; eye large, but not protruding outward, interorbital width larger than eye diameter, interorbital width/head length ratio 0.22-0.27, mean 0.25 . Cross section: oval.

🌀 Behaviour

Behavioural data for Blunt-snout small-toothed sleeper is currently being reviewed.

🦐 Diet

Diet information for Blunt-snout small-toothed sleeper is currently being compiled.

🥚 Reproduction

Reproduction data for Blunt-snout small-toothed sleeper is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic. Subtropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00562 × L3.12 (TL)
Max TL
9cm
Dorsal Spines
9
Dorsal Rays
10
Anal Spines
1
Anal Rays
9
Vertebrae
34

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
34.00/100
Low vulnerability
Trophic Level
3.2
Predator
Climate Zone
Subtropical
Described By
Hu, Lan & Li, 2023

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet — be the first to log one!

View all observations for Blunt-snout small-toothed sleeper ↗
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.