newt

(redirected from Newts)
Also found in: Dictionary, Thesaurus, Medical, Acronyms, Idioms.

newt,

name for members of a large salamandersalamander,
an amphibian of the order Urodela, or Caudata. Salamanders have tails and small, weak limbs; superficially they resemble the unrelated lizards (which are reptiles), but they are easily distinguished by their lack of scales and claws, and by their moist, usually
..... Click the link for more information.
 family, widely distributed in the Northern Hemisphere and including the common European salamanders. Newts are lizardlike in shape and are usually under 6 in. (15 cm) long including the slender tail. Some are brightly colored and secrete irritating substances. Like other salamanders, newts go through an aquatic, gilled larval stage. In some species the adults remain aquatic, although they lose their gills and breathe air; in others the adults are terrestrial, returning to water only to breed. Still other newts go through two adult stages: a terrestrial stage, during which they are called efts, is followed by a permanent aquatic stage. One such species is the common red-spotted newt (Diemictylus viridescens) of the E United States, known in its terrestrial stage as red eft. The 3-in. (7.5-cm) adult lays its eggs in spring on the stems and leaves of water plants. The greenish-brown larvae remain in the water for several months before emerging as efts, orange-red with a double row of black-ringed vermilion spots. The efts spend two or three years on land, hibernating in winter under leaves, and then return permanently to the water, becoming olive green and developing a broad swimming tail. Newts are classified in the phylum ChordataChordata
, phylum of animals having a notochord, or dorsal stiffening rod, as the chief internal skeletal support at some stage of their development. Most chordates are vertebrates (animals with backbones), but the phylum also includes some small marine invertebrate animals.
..... Click the link for more information.
, subphylum Vertebrata, class Amphibia, order Urodela, family Salamandridae.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

newt

[nüt]
(vertebrate zoology)
Any of the small, semiaquatic salamanders of the genus Triturus in the family Salamandridae; all have an aquatic larval stage.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

newt

1. any of various small semiaquatic urodele amphibians, such as Triturus vulgaris (common newt) of Europe, having a long slender body and tail and short feeble legs
2. Chiefly Brit any other urodele amphibian, including the salamanders
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Newts from the high-elevation regions of Oregon outside of Crater Lake ranged from BDL to 0.042 mg TTX, while newts in Crater Lake ranged from BDL to 0.00214 mg TTX.
Callum started his study after he heard that a German herpetologist had found larval stage newts beside Loch Linnhe near Fort William while on holiday in 2011.
Katharine then rushed the newt and salad back to Sainsbury's Holborn store.
Predators that can prey on newts in this locality are Grass snakes, Eurasian jays (Garrulus glandarius), European magpies (Pica pica), European polecats (Mustela putorius), Beech martens (Martes foina), and European pine martens (Martes martes).
"In addition the site would be landscaped in such a manner as to still allow great crested newts to pass through, and offer foraging ground."
Ledson Marsh serves as a breeding ground for many local amphibians, including California red-legged frogs (Rana draytoni), California newts (Taricha torosa) and rough-skinned newts (T.
A business based in Ukraine reportedly is the main marketer for the newt and it operates primarily over the Internet.
The newts are about to come out of hibernation, buried in land surrounding the ponds, to start their breeding season.
Peter Hill, conservation officer for South and West Wales Amphibian and Reptile Group, said: "The great crested newt has very specific habitat requirements.
Yet this bizarre behaviour appears not to cause the newt any ill effects.
Officials said they were assessing an application from developers for permission to move the newts to a new site.
WORK on a new road could cost pounds 1.7million more than planned after it was found to run through the home of a rare newt.