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

💧 Freshwater Critically Endangered 🌡️ Temperate

Bonytail

Gila elegans Baird & Girard, 1853
Max Length
62 cm
Max Weight
-
Lifespan
-
Trophic Level
2
Depth
-
Climate
Temperate
Resilience
Very low
Vulnerability
66.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Adults inhabit flowing pools and backwaters, usually over mud or rock. Streamlined body may suggest occasional occurrence in swift runs .

Scientific Name
Gila elegans
Authority
Baird & Girard, 1853
Habitat
Freshwater
Climate
Temperate
Body Shape
Fusiform / normal
IUCN Status
CR
Max Length
62 cm
Trophic Level
2
Resilience
Very low
Vulnerability
66.00/100
Migration
Potamodromous
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Gila elegans can be distinguished from similar species Gila cypha by having terminal mouth, angle along anal fin base continues well above caudal fin, more slender caudal peduncle, smaller hump on nape, usually dorsal fin with 10 rays; and 75-99 scales on lateral line. Breeding males with red lower side and pectoral and anal-fin bases .: fusiform / normal.

🌀 Behaviour

Behavioural data for Bonytail is currently being reviewed.

🦐 Diet

Diet information for Bonytail is currently being compiled.

🥚 Reproduction

Reproduction data for Bonytail is currently being compiled.

🌍 Habitat & Distribution

Freshwater; benthopelagic; potamodromous . Temperate; 42°N - 32°N North America: Colorado River drainage in Wyoming, Colorado, Utah, New Mexico, Arizona and California in USA; and Mexico.

🌿 Ecology

Zone Preferences
💧 Freshwater
Migration
Potamodromous
Trophic Level
2±0.2

📐 Morphometrics

Length–Weight Relationship: W = 0.01148 × L3.03 (TL)
Max TL
62cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Critically Endangered
Assessment Date
2012

📊 Population Risk & Fisheries

Population Resilience
Very low
Minimum doubling time
Fishing Vulnerability
66.00/100
High vulnerability
Trophic Level
2
Omnivore / Planktivore
Body Shape
Fusiform / normal
Climate Zone
Temperate
Described By
Baird & Girard, 1853

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Bonytail · bonytail chub
🌍CES Gila zdobena
🇪🇸Spanish carpa elegante
🇨🇳Chinese 美丽骨尾鱼

Scientific Synonyms

Scientific Name Author Year Status
Gila emoryi Baird & Girard 1853 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 Bonytail ↗
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.