Hardhead (Mylopharodon conocephalus), first described by Baird & Girard, 1854 is a very large fish in the family Cyprinidae (order Cypriniformes). Adults typically reach 100.00 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Subtropical waters. It feeds primarily on plankton, plant material, and detritus. On the IUCN Red List, it is classified as Least Concern.
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.
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 |
The following diseases are known to affect Hardhead.
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View all observations for Hardhead ↗Spotted incorrect or outdated data?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.