Trionychidae

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Trionychidae

[trī·ə′nik·ə‚dē]
(vertebrate zoology)
The soft-shelled turtles, a family of reptiles in the order Chelonia.

Trionychidae

 

a family of reptiles of the order Trionychoi-dae. Members of the family measure approximately 1 m in length and have three claws on each extremity. The plastron consists of several interlocking parts and does not unite with the carapace. The Trionychidae are the only turtles in which the reduced bony base of the shell is covered by soft skin, which enables them to supplement pulmonary respiration with cutaneous respiration.

There are seven genera with 22 species that inhabit the fresh waters of South and East Asia, New Guinea, Africa, and North America. In the USSR, the spiny soft-shelled turtle, whose shell measures approximately 30 cm long, is found in the Amur River basin. Trionychids are highly mobile predators.

References in periodicals archive ?
Todays actions bring the majority of the worlds softshell turtles under the umbrella of CITES, and were proud to work with a coalition of countries committed to reversing the trend of over-exploitation that has depleted wild turtle populations.
The other two species of turtles, the midland smooth softshell turtle Apalone mutica and the Ouachita map turtle Graptemys ouachitensis, are species of large rivers (Ernst et al.
Every year, illegally collected adults of both the endangered spotted turtle and the threatened spiny softshell turtle are seized by conservation officers, often thanks to tips from the public.
species are also being exported to Asian markets, including Common snapping turtles (Chelydra serpentina), Alligator snapping turtles (Macrochelys temminckii), softshell turtles (Apalone spp.
4 mm in its greatest length, has a sculpturing pattern that is typical in many genera of the subfamily Trionychinae of the softshell turtle family Trionychidae.
1987, Miller 1993; but see Janzen 1993a) and smooth softshell turtles (Janzen 1993b).
Turtle meat: Softshell turtles with their flat, leathery carapaces have been described as "animated pancakes" for their ability to move or swim with astonishing speed and agility--a good idea since they are a favorite food of alligators.
In 1930, the "turtles" category was split into loggerhead, green, hawksbill, snapping, and softshell turtle categories.
If the African and Middle Eastern softshell turtle proposal is adopted at CoP17, the majority of the worlds softshell turtles will have CITES protection, a critical step in regulating the unsustainable trade in the species.
The Great Lakes have a moderating influence on the climate, allowing birds to overwinter and warm-water species, including the spotted gar and spiny softshell turtle, to survive this far north.
The record for the pallid softshell turtle (Apalone spinifera pallida) and the discovery of the green tree frog populations could be due to human intervention (Phillips et al.