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Veracruz Green Salamander

Pseudoeurycea lynchi Parra-Olea, Papenfuss & Wake 2001

Description

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Pseudoeurycea lynchi, known from only 3 populations, had previously been considered to be another population of Pseudoeurycea nigromaculata. This species is relatively small (adult male SVL 40.6-58.3 mm, female SVL 41.2-53.5 mm), but can be distinguished from its congeners by its dark green, green-ochre, pale yellow-green, or tannish yellow dorsum, usually with many black spots and short streaks. Ventrally black. A V-shaped, yellowish band is present between the eyes in some individuals. Iris is coppery gold. P. lynchi can be distinguished from its sister taxon, P. nigromaculata, by having a more robust body, somewhat fewer maxillary (75 vs. 89 in adults) and more numerous vomerine (36 vs. 31) teeth. Snout is broadly rounded and more truncate in males than in females. Costal folds 13, counting one each in axilla and groin. Limbs are relatively long, digits typically meet when limbs adpressed to side of trunk in males, or only slightly separated by approxamitely one-half costal interspace, in females, adpressed limbs fail to meet by one-half to one and one-half costal interspaces. Digits, in order of decreasing length: fingers 3-2-4-1, toes 3-4-2-5-1. Tail approximately 86-115%; Premaxillary teeth 2-7 and enlarged in adult, 10-15 and smaller in females. The type locality at Cerro San Pedro (2160 m), species has also been found elevation 2050-2300 m near the escarpment on the slopes of mountains close Cerro Cofre de Perote in near village of La Joya (Parra-Olea et al. 2001).

Reference

Parra-Olea, G., Papenfuss, T.J., and Wake, D.B. (2001). ''New species of lungless salamanders of the genus Pseudoeurycea (Amphibia: Caudata: Plethodontidae) from Veracruz, Mexico.'' Occasional Papers of the Museum of Natural History, University of Kansas, 20, 1-9.

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Distribution and Habitat

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This species is only known from 3 populations in the central Sierra Madre Oriental where it ranges widely.
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Life History, Abundance, Activity, and Special Behaviors

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All specimens occur in cloud forest where it is found only in, or under, decaying wood and under the bark fo logs. Specimens are mesophilic, found in Pine and Oak forests.
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Pseudoeurycea lynchi

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Pseudoeurycea lynchi, commonly known as the Veracruz green salamander, is a species of salamanders in the family Plethodontidae. It is endemic to the central Sierra Madre Oriental in Veracruz and Puebla states, Mexico. [3]

Etymology

The specific name lynchi honors Dr. James Francis Lynch (1942–1988), a "friend and long-time collaborator".[2] (Not John D. Lynch as sometimes claimed.[4])

Description

Adult males measure 41–48 mm (1.6–1.9 in) and females 41–54 mm (1.6–2.1 in) in snout–vent length (SVL). The tail is relatively stout, tapering rather abruptly toward the tip, and is about the same length as the SVL (range 86–115 %). The hands and feet are comparatively well developed. The coloration of the dorsum is variable: dark green, green-ochre, pale yellow-green, tannish yellow, or in some populations, even blue-gray. The ground color is black, and there are usually many black spots and short streaks. The tail is usually paler than the body and ends with a bright yellow to reddish orange tip. Some individuals have a distinct, shallow V-shaped yellowish band between the eyes. The limb insertions are greenish yellow. The venter is black. The iris is coppery gold.[2]

Habitat and conservation

This terrestrial salamander has direct development. Its natural habitats are cloud forests at elevations of 1,200–1,500 m (3,900–4,900 ft) above sea level. It can be found in decaying wood, under bark of logs, under moss, and under pine logs. It can also be found off the ground.[1]

Pseudoeurycea lynchi can survive in degraded forest and rural gardens. Despite being adaptable to some habitat degradation, extensive forest loss caused by agriculture, logging, and mining is threatening this species. The populations appear to be on decline.[1]

References

  1. ^ a b c IUCN SSC Amphibian Specialist Group (2016). "Pseudoeurycea lynchi". IUCN Red List of Threatened Species. 2016: e.T59385A53982955. doi:10.2305/IUCN.UK.2016-3.RLTS.T59385A53982955.en. Retrieved 12 November 2021.
  2. ^ a b c Parra-Olea, Gabriela; Papenfuss, Theodore J.; Wake, David B. (2001). "New species of lungless salamanders of the genus Pseudoeurycea (Amphibia: Caudata: Plethodontidae) from Veracruz, Mexico". Scientific Papers. Natural History Museum, University of Kansas. 20: 1–9.
  3. ^ Frost, Darrel R. (2017). "Pseudoeurycea lynchi Parra-Olea, Papenfuss, and Wake, 2001". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 12 March 2017.
  4. ^ Beolens, Bo; Watkins, Michael; Grayson, Michael (2013). The Eponym Dictionary of Amphibians. Pelagic Publishing. pp. 211–212. ISBN 978-1-907807-42-8.
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Pseudoeurycea lynchi: Brief Summary

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Pseudoeurycea lynchi, commonly known as the Veracruz green salamander, is a species of salamanders in the family Plethodontidae. It is endemic to the central Sierra Madre Oriental in Veracruz and Puebla states, Mexico.

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