| Chiselmouth | ||||||||||||||||
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| Acrocheilus alutaceus Agassiz and Pickering, 1855 |
The chiselmouth is an unusual cyprinid fish of western North America. Jean Louis Rodolphe Agassiz ( May 28 1807 — December 14 1873) was a Swiss - American Zoologist, Glaciologist Charles Pickering ( November 10, 1805 &ndash March 17, 1878) was an American naturalist. Year 1855 ( MDCCCLV) was a Common year starting on Monday (link will display the full calendar of the Gregorian Calendar (or a Common year The family Cyprinidae, from the Ancient Greek κυπρῖνος ( kuprīnos "carp" consists of the Carps Fish are aquatic Vertebrate animals that are typically ectothermic (previously Cold-blooded) covered with scales, and equipped with two It is named for the sharp hard plate on its lower jaw, which is used to scrape rocks for algae. Algae ( sing. alga are a large and diverse group of simple typically Autotrophic organisms ranging from Unicellular to Multicellular forms It belongs into the monotypic genus Acrocheilus and is a close relative of the Gila western chubs (Simons & Mayden 1997). Monotypic is an adjective that refers to a taxonomic group with only one type: In Botany, "monotypic" means that a Taxon has only A genus (plural genera from Γένος Latin genus "descent family type gender" is a low-level Taxonomic Gila is a Genus of Fish belonging to the family Cyprinidae, native to North America and Central America.
The chiselmouth's body plan generally follows the standard cyprinid form, generally elongated and slightly compressed. The snout is very blunt, with the lower jaw's plate (which consists of cornified epithelium) jutting out slightly. In biology and medicine epithelium is a tissue composed of cells that line the cavities and surfaces of structures throughout the body Coloration is rather drab, dark brown above and lighter lower down. Many individuals also have a pattern of black dots, and younger fish may have a dark area at the base of the tail. The single dorsal fin has 10 soft rays, while the anal fin and well-developed pelvic fins each have 9-10 rays. A dorsal fin is a Fin located on the backs of some Fishes Whales Dolphins and Porpoises as well as the (extinct The Anatomy of Fish is primarily governed by the physical characteristics of Water, which is much denser than air holds a relatively small amount of dissolved The Anatomy of Fish is primarily governed by the physical characteristics of Water, which is much denser than air holds a relatively small amount of dissolved Chiselmouths can reach a length of 30 cm (12 in).
Young fish feed on surface insects. Insects ( Class Insecta) are a major group of Arthropods and the most diverse group of Animals on the Earth with over a million described When the chisel develops (at around 0. 6 inches length), they shift to scraping, making short darting movements at the substrate to dislodge whatever is on it, and sucking it in. Although they consume filamentous algae, it seems not be digested much despite a long coiled intestine, and their primary food actually consists of diatoms. Diatoms ( Greek: (dia = "through" + (temnein = "to cut" i
They are typically found in warmer parts of streams and rivers in the drainages of the Columbia River, Fraser River, and the Harney-Malheur system of the Great Basin. The Columbia River (known as For other uses of this name see Fraser River (disambiguation. The Harney Basin is an arid basin (and a physiographic section in southeastern Oregon in the United States, at the northwestern corner of the Great Basin The Great Basin is a large arid region of the western United States. Some are found in lakes, migrating into streams to spawn. Although abundant in many parts of their range, behavior remains little-known.
References
- "Acrocheilus alutaceus". FishBase. FishBase is a comprehensive Database of information about Fish. Ed. Ranier Froese and Daniel Pauly. March 2006 version. N. p. : FishBase, 2006.
- Acrocheilus alutaceus (TSN 163531). Integrated Taxonomic Information System. Integrated Taxonomic Information System ( ITIS) is a partnership designed to provide consistent and reliable information on the Taxonomy of biological Species Retrieved on 18 April 2006. Events 1025 - Bolesław Chrobry is crowned in Gniezno, becoming the first King of Poland. Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar.
- Sigler, William F. & Sigler, John W. (1987): Fishes of the Great Basin: 149-151. University of Nevada Press, Reno.
- Simons, Andrew M. & Mayden, Richard L. (1997): Phylogenetic Relationships of the Creek Chubs and the Spine-Fins: an Enigmatic Group of North American Cyprinid Fishes (Actinopterygii: Cyprinidae). Cladistics 13(3): 187-205. doi:10.1111/j.1096-0031.1997.tb00315.x (HTML abstract)