AnAge entry for Cryptobranchus alleganiensis

Classification (HAGRID: 00943)

Taxonomy: Kingdom: Animalia
    Phylum: Chordata
        Class: Amphibia (Taxon entry)
            Order: Caudata
                Family: Cryptobranchidae
                    Genus: Cryptobranchus
Species: Cryptobranchus alleganiensis
Common name: Hellbender
Synonyms: Salamandra alleganiensis

Lifespan, ageing, and relevant traits

Maximum longevity: 29 years (wild)
Source: ref. 528
Sample size: Medium
Data quality: Acceptable
Observations: This is a relatively long-lived species, and some estimates indicate these animals may live over 30 years in the wild [0528].

Life history traits (averages)

Female sexual maturity: 1,825 days
Male sexual maturity: 1,825 days
Incubation: 72 days
Metamorphosis
Clutch size: 275 (oviparous)
Adult weight: 358.1 g

Metabolism

Typical body temperature: 288ºK or 14.9ºC or 58.7ºF
Resting metabolic rate: 0.0253 W
Body mass: 358.0 g
Metabolic rate per body mass: 0.000071 W/g

References

[0037] Gillooly et al. (2001), Effects of size and temperature on metabolic rate, PubMed
[0440] New York State Department of Environmental Conservation
[0528] Partners in Amphibian And Reptile Conservation: Northeast Working Group

External Resources

Integrated Taxonomic Information System: ITIS 173587
Animal Diversity Web: ADW account
Encyclopaedia of Life: Search EOL
Genome Project: Search NCBI
Entrez: Search all databases or Entrez Taxonomy search
Ageing Literature: Search Google Scholar or Search PubMed or Search Scirus
Images: Google Image search
Internet: Search Google