| 词条 | Ophryacus smaragdinus |
| 释义 |
| image = | image_caption = | status = | status_system = | status_ref = | taxon = Ophryacus smaragdinus | authority = Grünwald, Jones, Franz-Chávez & Ahumada-Carrillo, 2015 | synonyms = * Ophryacus undulatus Flores-Villela et al. (1992)
}} 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] EtymologyThe specific name smaragdinus means “emerald-green” due to emerald green colored body.[4] DescriptionAdults grow to between {{convert|450|and|500|mm|in|frac=8|abbr=off}} 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 rangeIt 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] BehaviorTerrestrial and less arboreal.[4] See also
References1. ^{{cite web |url=http://novataxa.blogspot.com/2016/01/ophryacus-smaragdinus.html |title=Ophryacus smaragdinus |publisher=novataxa|accessdate=2 May 2018}} 2. ^{{NRDB species|genus=Ophryacus|species=smaragdinus|accessdate=13 December 2016}} 3. ^{{ITIS |id=1058563 |taxon=Ophryacus smaragdinus |accessdate=2 May 2018}} 4. ^1 2 3 4 {{cite web |url=http://www.herp.mx/pubs/2015-Grunwald-et-al-Ophryacus.pdf |title=A new species of Ophryacus (Serpentes: Viperidae: Crotalinae) from eastern Mexico, with comments on the taxonomy of related pitvipers |publisher=Mesoamerican Herpertology|accessdate=2 May 2018}} 5. ^{{cite web |url=https://news.mongabay.com/2016/01/new-species-of-pitvipers-discovered-in-endangered-mexican-cloud-forests/ |title=New species of venomous snake discovered in endangered Mexican cloud forests |publisher=mongabay|accessdate=2 May 2018}} External links 5 : Crotalinae|Snakes of North America|Reptiles of Mexico|Endemic fauna of Mexico|Reptiles described in 2014 |
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