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A newt is a salamander in the subfamily Pleurodelinae. The terrestrial juvenile phase is called an eft. Unlike other members of the family Salamandridae, newts are semiaquatic, alternating between aquatic and terrestrial habitats. Not all aquatic salamanders are considered newts, however.
The eastern newt (Notophthalmus viridescens) is a common newt of eastern North America.It frequents small lakes, ponds, and streams or nearby wet forests. The eastern newt produces tetrodotoxin, which makes the species unpalatable to predatory fish and crayfish. [3]
Tylototriton shanjing, the emperor newt, Mandarin newt or Mandarin salamander, is a highly toxic newt native to Yunnan and parts of South China. It is sometimes seen in private collections, and is sometimes available for sale at certain reptile and amphibian-specializing pet stores and occasionally through captive breeders .
Rough-skinned newt. The skin of salamanders, in common with other amphibians, is thin, permeable to water, serves as a respiratory membrane, and is well-supplied with glands. It has highly cornified outer layers, renewed periodically through a skin shedding process controlled by hormones from the pituitary and thyroid glands. During moulting ...
List of Minnesota amphibians lists all of the salamanders, ... Central newt: Notophthalmus viridescens ... Checklist of Amphibian Species and Identification Guide;
Red-bellied newts can live for 20-30 years. [9] After reaching reproductive maturity, male red-bellied newts start congregating at stream banks as early as January or February. One to three weeks later, the females join them and the newts mate. [2] Red-bellied newts lay their eggs in fast-flowing streams or rocky rivers.
The spotted salamander is about 15–25 cm (5.9–9.8 in) long (tail included), [7]: 76 with females generally being larger than males. [8] It is stout, like most mole salamanders, and has a wide snout. [3] The spotted salamander's main color is black, but can sometimes be a bluish-black, dark gray, dark green, or even dark brown.
The Iberian ribbed newt (Pleurodeles waltl), also known commonly as the Spanish ribbed newt and el gallipato in Spanish, is a species of salamander in the subfamily Pleurodelinae of the family Salamandridae. The species is native to the central and southern Iberian Peninsula and Morocco. [2] It is the largest European newt species.