Overview information for Hardhead is currently being compiled by our editorial team.
Dorsal soft rays (total): 8. Body long, slender; brown to dusky bronze above (darkest on large individuals; silver side; dorsal-fin origin behind pelvic-fin origin; 69-81 scales on lateral line; 8 dorsal rays; premaxillary frenum present; snout long, pointed; large, terminal mouth reaching front of eye; pharyngeal teeth 2,5-4,2 .: fusiform / normal.
Behavioural data for Hardhead is currently being reviewed.
Diet information for Hardhead is currently being compiled.
Reproduction data for Hardhead is currently being compiled.
Freshwater; demersal; potamodromous . Subtropical; 42°N - 36°N North America: Sacramento-San Joaquin and Russian River drainages in California, USA.
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Gila conocephala | Baird & Girard | 1854 | Synonym |
| Mylopharodon robustus | Ayres | 1855 | Synonym |
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 7 records indexed .
No observations yet - be the first to log one!
View all observations for Hardhead ↗Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.
Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.