Ophryacus smaragdinus

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Ophryacus smaragdinus
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Viperidae
Genus: Ophryacus
Species:
O. smaragdinus
Binomial name
Ophryacus smaragdinus
Grünwald, Jones, Franz-Chávez & Ahumada-Carrillo, 2015
Synonyms
  • Ophryacus undulatusFlores-Villela et al. (1992)
  • Ophryacus undulatusCamarillo (1995)
  • Ophryacus undulatusCampbell and Lamar (2004)
  • Ophryacus undulatusMendoza-Paz et al. (2006)
  • Ophryacus undulatusRamírez-Bautista et al. (2010)
  • Ophryacus undulatusSolano-Zavaleta et al. (2010)
  • Ophryacus undulatusRamírez-Bautista et al. (2014)
Common names: Emerald horned pitviper.

Ophryacus smaragdinus is a venomous pitviper species endemic to the mountains of eastern Mexico. [1] No subspecies are currently recognized. [2] [3]

Contents

Etymology

The specific name Ophyracus is derived from the Greek language word ophrys (ὀφρύς), which means "brow" or "eyebrow", and the Latin word acus, which means "needle", an allusion to the characteristic horn-like scales over the eyes; smaragdinus (or "emerald-green" in English) is the Latinization of the Latin noun smaragdus, which itself derives from the earlier Greek noun σμάραγδος, meaning emerald, i.e., a sharp horned toad with an emerald-green colored body. [4]

Description

Adults grow to between 450 and 500 millimetres (17+3⁄4 and 19+5⁄8 inches) in length. No rattle. Supraocular horn is not in immediate contact with the eye. On lateral surfaces of head, a distinctive white, cream, or pale yellow triangular marking is present. Head wide with a rounded blunt snout. There are 3–5 canthals present between the nasals and the supraocular scales. There are 1–4 keeled postrostral internasals. Loreal pit is divided. Ventrals 155–166, 3–5 postoculars, 3–5 suboculars, subcaudals 39–46, 7–9 supralabials and dorsal scale rows are 21-21-17. [4]

Body emerald or olive green, which gives the common name. Sometimes it can be brown or tan. On dorsal surface, there are 37–46 dark blotches, which are outlined in black. In mid dorsal region, these dorsal blotches are broken to form an undulating dark stripe. Juveniles are grey in color. Tail which is 12 to 15 in the total body length, contains 5–12 pale bands. Head contains black spots and markings. A dark black-outlined postocular stripe is present. [4]

Geographic range

It is found in east-central Hidalgo, west-central Veracruz, northeastern Puebla, and north-central Oaxaca. [5] Habitats include montane cloud forest, humid pine-oak woodland and pine forest with secondary vegetation. [4]

Behavior

Terrestrial and less arboreal. [4]

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References

  1. ↑ "Ophryacus smaragdinus". novataxa. 12 January 2016. Retrieved 2 May 2018.
  2. ↑ Ophryacus smaragdinus at the Reptarium.cz Reptile Database . Accessed 13 December 2016.
  3. ↑ "Ophryacus smaragdinus". Integrated Taxonomic Information System . Retrieved 2 May 2018.
  4. 1 2 3 4 5 "A new species of Ophryacus (Serpentes: Viperidae: Crotalinae) from eastern Mexico, with comments on the taxonomy of related pitvipers" (PDF). Mesoamerican Herpertology. Retrieved 2 May 2018.
  5. ↑ "New species of venomous snake discovered in endangered Mexican cloud forests". mongabay. 7 January 2016. Retrieved 2 May 2018.
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