Porthidium dunni

Porthidium dunni is a species of venomous pitviper in the family Viperidae. The species is endemic to Mexico. There are no recognized subspecies.[4]

Porthidium dunni
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Genus: Porthidium
Species:
P. dunni
Binomial name
Porthidium dunni
(Hartweg & Oliver, 1938)
Synonyms[2]
Common names: Dunn's hognosed pitviper.[3]

Etymology

The specific name, dunni, is in honor of American herpetologist Emmett Reid Dunn[5] "in appreciation of his work on American snake fauna".[6]

Description

Adults of P. dunni are usually 30–40 cm (11+3⁄4–15+3⁄4 in) in total length (including tail), with a maximum of 57 cm (22+1⁄2 in). A moderately stout and terrestrial species, the tip of the snout is moderately elevated.[3]

Geographic range

P. dunni is found in southern Mexico in the Pacific lowlands of Oaxaca and western Chiapas.[7]

The type locality given is "the immediate vicinity of the village of Tehuantepec" [Oaxaca, Mexico].[2]

Habitat

The preferred natural habitat of P. dunni is forest.[1]

Reproduction

P. dunni is ovoviviparous.[7]

Conservation status

The species P. dunni is classified as Least Concern (LC) on the IUCN Red List of Threatened Species (v3.1, 2007).[1] Species are listed as such due to their wide distribution, presumed large population, or because it is unlikely to be declining fast enough to qualify for listing in a more threatened category. The population trend is stable. Year assessed: 2007.[8]

References
  1. Muñoz-Alonso A (2007). "Porthidium dunni ". The IUCN Red List of Threatened Species 2007: https://dx.doi.org/10.1305/IUCN.UK.2007-RLTS.T64342A12772353.en. Accessed on 09 October 2022.
  2. McDiarmid RW, Campbell JA, Touré TA (1999). Snake Species of the World: A Taxonomic and Geographic Reference, Volume 1. Washington, District of Columbia: Herpetologists' League. 511 pp. ISBN 1-893777-00-6 (series). ISBN 1-893777-01-4 (volume).
  3. Campbell JA, Lamar WW (2004). The Venomous Reptiles of the Western Hemisphere. 2 volumes. Ithaca and London: Comstock Publishing Associates. 870 pp. 1,500 plates. ISBN 0-8014-4141-2.
  4. "Porthidium dunni". Integrated Taxonomic Information System. Retrieved 15 September 2007.
  5. Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. (Porthidium dunni, p. 77).
  6. Hartweg & Oliver (1938), pp. 5-6.
  7. Species Porthidium dunni at The Reptile Database www.reptile-database.org.
  8. 2001 Categories & Criteria (version 3.1) at the IUCN Red List. Accessed 15 September 2007.

Further reading
  • Hartweg N, Oliver JA (1938). "A Contribution to the Herpetology of the Isthmus of Tehuantepec: III. Three New Snakes from the Pacific Slope". Occasional Papers of the Museum of Zoology, University of Michigan (390): 1-8 + Plate I. (Trimeresurus dunni, new species, pages 6–7 + Plate I, Figures B & D).
  • Heimes P (2016). Snakes of Mexico: Herpetofauna Mexicana Vol. I. Frankfurt am Main, Germany: Chimaira. 572 pp. ISBN 978-3899731002.
  • Mata-Silva V, Johnson JD, Wilson LD, García-Padilla E (2015). "The herpetofauna of Oaxaca, Mexico: composition, physiographic distribution, and conservation status". Mesoamerican Herpetology 2 (1): 6–62.
  • Mata-Silva V, Rocha A, DeSantis DL, García-Padilla E, Wilson LD (2016). "Porthidium dunni (Hartweg and Oliver, 1938). Arboreality". Mesoamerican Herpetology 3 (1): 156–157.


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