Identification
This is relevant for all animals belonging to Terrestrial Snakes in The Far East.
Snake not available
Distribution
See Geographical Distribution to narrow down the possible culprits on country/state level.
Biological Features
The Far East
Description of the most important representatives:
| General behaviour | Habitats | Appearance | Defensive behaviour | Factors relevant to envenoming | |
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nocturnal ground-dwelling |
forests, open areas, agricultural zones, populated areas |
slender snakes, smallest species between 70 and 90 cm long, largest up to 2 m; several species with clear cross bands along the body |
very shy during the day; when threatened the head is hidden under the coils of the body |
bites only occur at night, and many victims are bitten while sleeping; the bite often goes unnoticed and the victim awakes with neurotoxic symptoms |
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nocturnal and diurnal ground-dwelling |
forests, open areas, agricultural zones; often in densely populated areas |
slender to sturdy body; wide head, but not clearly distinct from the body; length 1–2 m |
raising the first third of the body, neck region is spread out into a flat hood; some species with a marking on the back of the flattened hood (see picture) |
not known |
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nocturnal or diurnal ground-dwelling |
primarily in dense forest, sometimes also in open areas; never in densely populated areas |
appearance as for Naja sp., but up to 4 or 5 m long; sturdy body, yet appears slender |
as for Naja sp. (see above); in the defensive position can raise their head to a height of over 1.5 m from the ground; grunting warning sound |
bites are rare |
| Daboia russelli ssp.
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primarily nocturnal ground-dwelling
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open grasslands or scrubland; plantations, often in rice fields |
sturdy body with an average length of 1 m (maximum 1.5 m); body markings consist of dark ovals |
repeated, intermittent puffing through the large nostrils; at the same time the body is formed into taut coils |
victims are chiefly rural workers, primarily in rice fields |
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nocturnal in warm weather, diurnal in cool; in cooler regions they hibernate ground-dwelling |
in deserts, semi-deserts and stony regions, but also in forested areas; some species in alpine areas; G. blomhoffii in wet, preferably forested regions and in agricultural areas (rice fields) |
sturdy body, generally under 1 m in length |
flattening of the body; the tip of the tail is vibrated, which causes a rustling sound in loose substrate (e.g. leaves) |
not known |
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nocturnal in warm weather, diurnal in cool; in cooler regions they hibernate ground-dwelling |
in forested, hilly and mountainous regions, prefer rocky areas |
sturdy body with tapering head; characteristic upturned "horn" on the tip of the snout |
the tip of the tail is vibrated, which causes a rustling sound in loose substrate (e.g. leaves) |
dangerous snakes that are commonly collected in China for the production of traditional medical remedies; bite victims are often snake catchers |
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Trimeresurus sp.
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most species are arboreal (bushes and shrubs), some are ground-dwelling |
wooded regions, open areas with bushes and shrubs, parks in cities, gardens |
smaller snakes under 1 m; the most important species in medical terms are green, without markings |
body is held in an S-shaped coil |
common cause of snakebites |
Snake available
Morphological Identification
Morphological key to the terrestrial venomous snakes
| Only ever pick up dead snakes! Caution - reflex bites are possible in snakes that have only just been killed. Hold the snake with one hand behind the head, and with the other hand open the mouth using tweezers and observe the dentition (also look for teeth that may be hidden in mucosal folds). | ||||
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Are all the teeth +/- of the same size? | yes |
Harmless snakes (local symptoms may occur) |
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| no
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Enlarged teeth (venom fangs, generally grooved at the front or with a venom duct orifice near the tip) are +/- at the back; there are always normal teeth in front of these venom fangs! | yes |
some species of Colubridae |
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| no
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Venom fangs are at the very front of the row of teeth and are +/- fixed (not moveable) in the upper jaw. May be so small as to be barely visible! | yes
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Elapidae (no Elapidae in Europe!) » proceed to regional identification |
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| no
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| Exceedingly long venom fangs at the very front of the upper jaw that can be erected forwards, in rare cases laterally. Normally they are folded back and covered by mucosal sheaths! | ||||
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Is there a pit between the nostril and the eye? | yes
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Crotalinae (no Crotalinae in Central and Southern Africa, and Australia!) » proceed to regional identification |
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| no | ||||
| Viperinae (no Viperinae in the Americas and Australia!) | ||||