Animalia > Chordata > Amphibia > Caudata > Salamandridae > Taricha > Taricha granulosa

Taricha granulosa (Rough-skinned Newt)


Wikipedia Abstract

The rough-skinned newt (Taricha granulosa) is a North American newt known for the strong toxin exuded from its skin.
View Wikipedia Record: Taricha granulosa

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 18.4
EDGE Score: 2.97


Adult Length [2]  9 inches (21.6 cm)
Gestation [3]  23 days
Litters / Year [2]  1
Maximum Longevity [2]  12 years
Nocturnal [1]  Yes
Water Biome [1]  Lakes and Ponds, Rivers and Streams, Temporary Pools
Adult Weight [3]  12 grams
Diet [1]  Carnivore
Female Maturity [3]  3 years 6 months
Male Maturity [3]  3 years 6 months


Protected Areas

Biodiversity Hotspots

Name Location Endemic Species Website
California Floristic Province Mexico, United States No


Thamnophis sirtalis (Common Garter Snake)[4]


Parasitized by 
Megalodiscus americanus[5]
Ophioxenos microphagus[5]

Range Map

External References

NatureServe Explorer


Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
2Oliveira, Brunno Freire; São-Pedro, Vinícius Avelar; Santos-Barrera, Georgina; Penone, Caterina; C. Costa, Gabriel. (2017) AmphiBIO, a global database for amphibian ecological traits. Sci. Data.
3de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
4Brodie, Edmund D., III, et al. "Sex-biased predation on newts of the genus Taricha by a novel predator and its relationship with tetrodotoxin toxicity." The American Midland Naturalist 165.2 (2011): 389+. Academic OneFile. Web. 15 July 2014.
5Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset accessed via on 2023-06-13; License: CC BY 4.0