Eastern newt

Eastern newt
Redspotted newt.jpg
Aquatic adult male
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Urodela
Family: Salamandridae
Genus: Notophthalmus
N. viridescens
Binomial name
Notophthalmus viridescens
(Rafinesque, 1820)
Notophthalmus viridescens map.svg
Range of N. viridescens subspecies:

Yellow: N. v. viridescens
Purple: N. v. louisianensis
Magenta: N. v. dorsalis
Black: N. v. piaropicola

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.[2] It has a lifespan of 12 to 15 years in the wild, and it may grow to 5 in (13 cm) in length. These animals are common aquarium pets, being either collected from the wild or sold commercially. The striking bright orange juvenile stage, which is land-dwelling, is known as a red eft. Some sources blend the general name of the species and that of the red-spotted newt subspecies into the eastern red-spotted newt (although there is no "western" one).[3][4]

  1. ^ IUCN SSC Amphibian Specialist Group (2015). "Notophthalmus viridescens". IUCN Red List of Threatened Species. 2015: e.T59453A78906143. doi:10.2305/IUCN.UK.2015-4.RLTS.T59453A78906143.en. Retrieved 19 November 2021.
  2. ^ Marion, Zachary H; Hay, Mark E (2011). "Chemical Defense of the Eastern Newt (Notophthalmus viridescens): Variation in Efficiency against Different Consumers and in Different Habitats". PLOS ONE. 6 (12): e27581. Bibcode:2011PLoSO...627581M. doi:10.1371/journal.pone.0027581. PMC 3229496. PMID 22164212.
  3. ^ Phillips, J; Borland, S (1994). "Use of a Specialized Magnetoreception System for Homing by the Eastern Red-Spotted Newt Notophthalmus Viridescens". The Journal of Experimental Biology. 188 (1): 275–91. doi:10.1242/jeb.188.1.275. PMID 9317797.
  4. ^ Brassart, J; Kirschvink, J. L; Phillips, J. B; Borland, S. C (1999). "Ferromagnetic material in the eastern red-spotted newt notophthalmus viridescens". The Journal of Experimental Biology. 202 Pt 22 (22): 3155–60. doi:10.1242/jeb.202.22.3155. PMID 10539964.

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