Desert sucker
Kingdom
Phylum
Family
Genus
SPECIES
Catostomus clarkii
Length
33
13
cminch
cm inch 

The desert sucker or Gila Mountain sucker (Catostomus clarkii), is a freshwater species of ray-finned fish in the sucker family, endemic to the Great Basin and the Colorado River Basin in the United States. It inhabits rapids and fast-flowing streams with gravelly bottoms. It is a bi-colored fish with the upper parts olive brown to dark green, and the underparts silvery-tan or yellowish. The head is cylindrical, tapering to a thick-lipped mouth on the underside. This fish can grow to 31 in (79 cm) in Arizona but is generally only about half this size elsewhere. There are three subspecies, found in different river basins, and some authorities allot this species its own genus Pantosteus.

Appearance

Desert suckers are bicolored; the back and upper sides are darker, olive-brown to dark green, and the belly and lower sides are deep-yellow to silvery tan. The scales on the upper half of the body have dark spots which form faint dashed lines. Their head is cylindrical, tapering to a blunt face with the lower lip about three times as thick as upper lip. The mouth is on the underside (ventral) of the face and is proportionately large. The dorsal fin of the desert sucker has 10 to 11 rays. The adult lengths range from 4 to 16 inches (100 to 410 mm) in smaller streams, but up to 31 inches (790 mm) in Arizona. Their weight ranges from 4 to 65 ounces (110–1,840 g).

Distribution

Geography

Continents
Subcontinents
Biogeographical realms

The desert sucker is found in Nevada, Utah, Arizona and New Mexico. The desert sucker occurs in the lower Colorado River basin, below the Grand Canyon, particularly in the Gila River, and above the Grand Canyon in streams in the Virgin River basin, the White River basin and others. The total range area of the desert sucker is estimated at 128,000 km2 (49,000 sq mi).

Show More

Desert suckers prefer ripply waters, rapids and flowing streams with gravelly bottoms.

Show Less

Mating Habits

Desert suckers reach maturity in their second year. Spawning occurs in winter and spring from January through May.

References

1. Desert sucker Wikipedia article - https://en.wikipedia.org/wiki/Desert_sucker
2. Desert sucker on The IUCN Red List site - https://www.iucnredlist.org/species/62193/129656831

More Fascinating Animals to Learn About