Bothriechis thalassinus
{{Short description|Species of snake}}
{{Speciesbox
| image = Víbora de pestañas del Merendón, Merendon palm-pitviper (Bothriechis thalassinus), Serpentario en Zoológico El Picacho.jpg
| status = EN | status_system = IUCN3.1
| taxon = Bothriechis thalassinus
| authority = Campbell & Smith, 2000
}}
Bothriechis thalassinus, also known as Merendon palm-pitviper or Merendon palm pit viper, is a pit viper species native to Guatemala and Honduras.{{NRDB species |genus=Bothriechis |species=thalassinus |access-date=19 December 2023 }}{{cite web|url=http://www.afpmb.org/content/venomous-animals-b#Bothriechisthalassinus|author=AFBMP|title=Bothriechis thalassinus|work=AFBMP Living Hazards Database|publisher=AFBMP|accessdate=2010-08-01|archive-url=https://web.archive.org/web/20120109073532/http://www.afpmb.org/content/venomous-animals-b#Bothriechisthalassinus#Bothriechisthalassinus|archive-date=2012-01-09|url-status=dead}}
Description
This is a medium-sized pitviper with a slender body and strong prehensile tail. Adults are usually {{convert|60|-|80|cm}} long, with a maximum recorded length of {{convert|97|cm}}. It has 21–23 dorsal scale rows at mid-body. The head and body usually have a greenish dorsal color, shading to yellow-greenish along the sides. The belly is generally lighter in color: cream, yellow-green or pale green. The dorsal pattern may have irregular blotches, turquoise to black, or speckling that doesn't reach very far down the sides.
The head has two black stripes and black speckling on top, which are less visible towards the tail. Like all other pitvipers, B. thalassinus has heat sensitive organs, or loreal pits, located on either side of the head between the eye and the nostril.
Geographic range
Habitat
It occurs in lower montane wet forest and lower montane moist forest at elevations of {{convert|885|-|1730|m}}.
Behavior
Like other Bothriechis members, this species appears to be mainly nocturnal and arboreal. It preys mostly on frogs, lizards, and sometimes small mammals or birds. B. thalassinus is not known to be an aggressive species, but may strike quickly when surprised or disturbed.
Reproduction
Like most other pitvipers, B. thalassinus is ovoviviparous. Average litter size is probably less than 10–12 young per litter.
Venom
The characteristics of its venom are not yet well known. It is mainly hemotoxic, and possibly contains mild neurotoxic or myotoxic factors. Seldom encountered by humans, there are very few reported bites of humans. Typical envenomation symptoms include local pain, swelling, mild local tissue necrosis, nausea, "tingling" of a digit or limb, and nausea. No confirmed deaths of humans have been reported for this species.
References
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{{Bothriechis}}
{{Taxonbar|from=Q2712467}}
Category:Snakes of Central America
Category:Reptiles of Guatemala