Chasmistes

Chasmistes
Shortnose sucker
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cypriniformes
Family:	Catostomidae
Subfamily:	Catostominae
Genus:	Chasmistes D. S. Jordan, 1878[1]
Type species
Catostomus fecundus Jordan, 1878[1]

Chasmistes is a genus of ray-finned fish in the family Catostomidae.[2]

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).

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:[4]

• 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

Fossil species

• †Chasmistes spatulifer R. R. Miller & G. R. Smith, 1967 (from the Plio-Pleistocene of Idaho)

References

1. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Catostomidae". Catalog of Fishes. California Academy of Sciences. Retrieved 25 November 2024.
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 978-0547242064.
4. Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Chasmistes". FishBase. August 2011 version.