Adults occur in rocky riffles, runs and pools of headwaters, creeks and small to medium rivers; rarely in lakes . Migratory behaviour is undetermined .
Dorsal spines (total): 0; Dorsal soft rays (total): 8 - 9; Anal spines: 0; Anal soft rays: 6 - 7; Vertebrae: 37 - 38. Body elongate, greatest depth in front of dorsal fin. Head bluntly triangular, a small but distinct hump present behind the head. Mouth inferior, sucker-like, lower jaw with fleshy lip. Overall coloration gray or gray-brown with scattered and vague darker flecks, usually above midline of sides; lower sides and belly somewhat yellowish or creamy white. A faint lateral band present.: elongated; Cross section: compressed.
Behavioural data for Speckled dace is currently being reviewed.
Freshwater; demersal; pH range: 6.8 - 7.8; dH range: 5 - 25. Temperate; 9°C - 11°C ; 49°N - 31°N North America: western drainages (Pacific and endorheic) from Columbia River in British Columbia, Canada to Colorado River in Arizona and New Mexico, USA and south into Sonora, Mexico.
| Language | Common Names |
|---|---|
| 🇬🇧English | speckled dac · Speckled Dace |
| 🇫🇷French | naseux moucheté · nasuex moucheté |
| 🇪🇸Spanish | carpita pinta |
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Agosia klamathensis | Evermann & Meek | 1898 | Synonym |
| Agosia novemradiata | Cope | 1883 | Synonym |
| Agosia oscula | Girard | 1856 | Synonym |
| Apocope carringtonii | Cope | 1872 | Synonym |
| Apocope couesii | Yarrow | 1875 | Synonym |
| Apocope oscula | Girard | 1856 | Synonym |
| Apocope oscula carringtonii | Cope | 1872 | Synonym |
| Apocope oscula nubila | Forbes | 1878 | Synonym |
| Apocope oscula thermalis | Hubbs & Kühne | 1937 | Synonym |
| Apocope vulnerata | Cope | 1872 | Synonym |
| Argyreus notabilis | Girard | 1856 | Synonym |
| Argyreus nubilus | Girard | 1856 | Synonym |
| Argyreus osculus | Girard | 1856 | Synonym |
| Ceratichthys squamilentus | Cope | 1871 | Synonym |
| Rhinichthys henshavii | Cope | 1874 | Synonym |
| Rhinichthys lariversi | Lugaski | 1972 | Synonym |
| Rhinichthys nevadensis | Gilbert | 1893 | Synonym |
| Rhinichthys nubilus | Girard | 1856 | Synonym |
| Rhinichthys osculus carringtonii | Cope | 1872 | Synonym |
| Rhinichthys osculus klamathensis | Evermann & Meek | 1898 | Synonym |
| Rhinichthys osculus lariversi | Lugaski | 1972 | Synonym |
| Rhinichthys osculus lethoporus | Hubbs & Miller | 1972 | Synonym |
| Rhinichthys osculus moapae | Williams | 1978 | Synonym |
| Rhinichthys osculus nevadensis | Gilbert | 1893 | Synonym |
| Rhinichthys osculus nubilus | Girard | 1856 | Synonym |
| Rhinichthys osculus oligoporus | Hubbs & Miller | 1972 | Synonym |
| Rhinichthys osculus reliquus | Hubbs & Miller | 1972 | Synonym |
| Rhinichthys osculus thermalis | Hubbs & Kühne | 1937 | Synonym |
| Rhinichthys osculus velifer | Gilbert | 1893 | Synonym |
| Rhinichthys velifer | Gilbert | 1893 | Synonym |
… and 1 more synonyms
The following diseases are known to affect Speckled dace.
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 45 records indexed .
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