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Pristis Pickeringi
''Pristis'' is a genus of sawfish of the family Pristidae. These large fish are found worldwide in tropical and subtropical regions in coastal marine waters, estuaries, and freshwater lakes and rivers. Sawfish have declined drastically and all species are considered critically endangered today. Taxonomy The scientific genus name ''Pristis'' is derived from the Greek word for saw. Living species Recent authorities recognize four species: * ''Pristis clavata'' Garman, 1906 — dwarf sawfish, Queensland sawfish * ''Pristis pectinata'' Latham, 1794 — smalltooth sawfish * ''Pristis pristis'' ( Linnaeus, 1758) — largetooth sawfish, common sawfish, freshwater sawfish, Leichhardt's sawfish * ''Pristis zijsron'' Bleeker, 1851 — longcomb sawfish, green sawfish These are divided into two species groups. Most are considered a part of the smalltooth group, except ''P. pristis'' which is the sole member of the largetooth group.Faria, V. V.; McDavitt, M. T.; Charvet, P.; Wiley, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sawfish
Sawfish, also known as carpenter sharks, are a family of rays characterized by a long, narrow, flattened rostrum, or nose extension, lined with sharp transverse teeth, arranged in a way that resembles a saw. They are among the largest fish with some species reaching lengths of about . They are found worldwide in tropical and subtropical regions in coastal marine and brackish estuarine waters, as well as freshwater rivers and lakes. They are endangered. They should not be confused with sawsharks (order Pristiophoriformes) or the extinct sclerorhynchoids (order Rajiformes) which have a similar appearance, or swordfish (family Xiphiidae) which have a similar name but a very different appearance. Sawfishes are relatively slow breeders and the females give birth to live young. They feed on fish and invertebrates that are detected and captured with the use of their saw. They are generally harmless to humans, but can inflict serious injuries with the saw when captured and defend ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
