Chasmistes

Chasmistes is a genus of ray-finned fish in the family Catostomidae.[1]

Chasmistes
Shortnose sucker
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cypriniformes
Family: Catostomidae
Tribe: Catostomini
Genus: Chasmistes
D. S. Jordan, 1878
Type species
Catostomus fecundus
Jordan, 1878

They are native to freshwater habitats in the Western United States.

Several species are seriously threatened, and one has become extinct in recent history (a second extinct species has only been known from fossils).[2]

Characteristics

Members of this genus have a large and stout body, as well as a large head. They often have a hump on their snout. Their mouths are either terminal or subterminal. They have a complete lateral line and a two-chambered gas bladder.[3]

Species

The genus Chasmistes contains these species:

  • Chasmistes brevirostris Cope, 1879 — shortnose sucker
  • Chasmistes cujus Cope, 1883 — cui-ui
  • Chasmistes fecundus (Cope & Yarrow, 1875) — Webug sucker
  • Chasmistes liorus D. S. Jordan, 1878 — June sucker
    • Chasmistes liorus liorus D. S. Jordan, 1878
    • Chasmistes liorus mictus R. R. Miller & G. R. Smith, 1981
  • †Chasmistes muriei R. R. Miller & G. R. Smith, 1981 — Snake River sucker
  • †Chasmistes spatulifer R. R. Miller & G. R. Smith, 1967
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References
  1. Froese, Rainer and Pauly, Daniel, eds. (2011). Species of Chasmistes in FishBase. August 2011 version.
  2. "Chasmistes". Integrated Taxonomic Information System. Retrieved March 7, 2008.
  3. Page, Lawrence M.; Burr, Brooks M. (2011). Peterson Field Guide to Freshwater Fishes of North America North of Mexico. Houghton Mifflin Harcourt. p. 305. ISBN 0547242069.


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