The scientific names of the sawfish family Pristidae and its type genus Pristis are derived from the Ancient Greek: πρίστης, romanized: prístēs, lit. 'saw, sawyer'. [15] [16] Despite their appearance, sawfish are rays (superorder Batoidea).

The International Union for the Conservation of Nature and Natural Resources (IUCN) declared the family Pristidae to be “among the most threatened elasmobranchs” in the world with the largetooth sawfish currently listed as “Critically Endangered”.

Sawfish, any of five species of sharklike rays that make up the family Pristidae. These bottom dwellers are found in shallow water in subtropical and tropical regions of the world. Sawfishes have a long flattened head and body and an elongated bladed snout edged with strong teeth.

Inhabits inshore coastal waters to moderate depth, also around off lying islands. Found also in estuaries, lagoons, river mouths, and even freshwater. Feeds on fishes and bottom-living animals. Ovoviviparous. Apparently can reproduce in freshwater (Ref. 57533).

May 20, 2009 · Sclerorhynchids are the extinct sawfishes of the Cretaceous period, which reached maximum total lengths of 100 cm. The morphology of their rostral teeth is highly variable. Pristid sawfish occur...

characters: Large to gigantic shark-like batoids (adults reaching 2.4 to 5 m total length or more, with specimens of 6 to 8 m or more reported). Body covered with tiny dermal denticles or placoid scales; no enlarged denticles, thorns, or spines on dorsal surface of trunk or tail. Trunk moderately depressed, thick and shark-like.

Distribution: Atlantic, Indian, and Pacific Oceans. Snout elongated into a long flat blade with teeth of uniform size deeply embedded on each side. No barbels. Head depressed. The body more or less resembling a shark. Two distinct dorsal fins. Giant fishes of coastal waters, entering estuaries and ascending large rivers for great distances.

Mar 19, 2009 · Sclerorhynchids (extinct sawfishes, Batoidea), pristids (extant sawfish, Batoidea) and pristiophorids (sawsharks, Squalomorphi) are the three elasmobranch families that possess an elongated rostrum with lateral teeth. Sclerorhynchids are the extinct sawfishes of the Cretaceous period, which reached maximum total lengths of 100 cm.

The largetooth sawfish (Pristis pristis, syn. P. microdon and P. perotteti) is a species of sawfish in the family Pristidae. It is found worldwide in tropical and subtropical coastal regions, but also enters freshwater.

Pristidae (del lat. pristis, "pez sierra") es una familia de elasmobranquios del superorden Batoidea, conocidos vulgarmente como peces sierra. Contiene dos géneros y siete especies. [2] Los peces sierra están más relacionados con las rayas que con los tiburones. Su apariencia es la de un pez con un hocico largo y lleno de dientes.