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锯鳐有2属7种,除了可能已经灭绝的之外,全部是濒危物种。这种是其中的largetooth sawfish, Pristis microdon
Family Pristidae
* Genus Anoxypristis
o Knifetooth sawfish, Anoxypristis cuspidata (Latham, 1794).
Also known as the narrow or pointed sawfish. Lives in muddy areas, appears grey.
* Genus Pristis
o Dwarf sawfish, Pristis clavata Garman, 1906.
Also known as the Queensland sawfish. Inhabits muddy bays and estuaries along the northern coast of Australia. Relatively small compared to other species, only around 1.4 m.
o Largetooth sawfish, Pristis microdon Latham, 1794.
Inhabits freshwater systems and have been found deep inland. The largest Australian freshwater fish.
o Smalltooth sawfish, Pristis pectinata Latham, 1794.
Also known as the wide sawfish. Lives in muddy areas, appears green or bluish-grey. Found Also lives in the Caribbean and around the Australian and African coastlines.
o Large-tooth sawfish, Pristis perotteti Müller & Henle, 1841.
Lives around the Caribbean and Central American coastline. Seriously endangered in Central and South America, especially Lake Nicaragua.
o Common sawfish, Pristis pristis (Linnaeus, 1758).
Once plentiful in the eastern Atlantic and Mediterranean, this species has become either critically endangered or is assumed extinct.
o Longcomb sawfish, Pristis zijsron Bleeker, 1851.
Prefers muddy bays and estuaries. The most common sawfish.
[ 本帖最后由 ozbird 于 22-3-2009 13:27 编辑 ] |
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