Lexic.us

Definition of Trionyx

1. Noun. Type genus of the Trionychidae.

Definition of Trionyx

1. n. A genus of fresh-water or river turtles which have the shell imperfectly developed and covered with a soft leathery skin. They are noted for their agility and rapacity. Called also soft tortoise, soft-shell tortoise, and mud turtle.

Medical Definition of Trionyx

1. A genus of fresh water or river turtles which have the shell imperfectly developed and covered with a soft leathery skin. They are noted for their agility and rapacity. Synonym: soft tortoise, soft-shell tortoise, and mud turtle. The common American species (Trionyx, or Aspidonectus, ferox) becomes over a foot in length and is very voracious. Similar species are found in Asia and Africa. Origin: NL, fr. Gr. (see Tri-) + a claw. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Trionyx

Literary usage of Trionyx

Below you will find example usage of this term as found in modern and/or classical literature:

1. Proceedings of the American Philosophical Society Held at Philadelphia for by American Philosophical Society (1893)
"In 1830 Wagler* divided the genus trionyx Geoffr. into two genera— ... One year later, in 1831, Gray f divides also the genus trionyx Geoffroy in two ..."

2. The Animal Kingdom Arranged in Conformity with Its Organizationby Georges Cuvier, Edward Griffith, Charles Hamilton Smith, Edward Pidgeon, John Edward Gray, George Robert Gray by Georges Cuvier, Edward Griffith, Charles Hamilton Smith, Edward Pidgeon, John Edward Gray, George Robert Gray (1831)
"trionyx. Geoff. Feet palmated, claws three, sharp ; the shell covered with a ... trionyx Georgicus, Geoff. Shell rather convex, obscurely keeled ; front and ..."

3. Annals and Magazine of Natural History by William Jardine (1872)
"trionyx georgicus (the trionyx ferox of Pennant). From North America. ... are copied from Cuvier's figures of the bones of trionyx ..."

4. Travels in Central Africa, and Explorations of the Western Nile Tributaries by John Petherick, Katherine Harriet Edlman Petherick (1869)
"seen that even the stuffed specimens from Khartoum had a shorter and more rounded face than the stuffed specimens of the Nilotic trionyx, though it had ..."

5. Cyclopædia of India and of Eastern and Southern Asia, Commercial, Industrial by Edward Balfour (1873)
"Muzzle produced into a nasal tube ; snout conically pointed. trionyx ... Grows to a very large siie, and. lib I» trionyx, is eaten by the natives, ..."

6. Descriptive Catalogue of the Fossil Organic Remains of Reptilia and Pisces by Museum, Royal College of Surgeons of England (1854)
"A middle cervical vertebra of a larger species or specimen of trionyx. ... The seventh or eighth cervical vertebra of the same trionyx. ..."

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