Poisonous and Non-Poisonous Snakes Difference

The upcoming discussion will update you about the difference between poisonous and non poisonous snakes.

Poisonous and Non-Poisonous Snakes Difference

Poisonous Snakes

Colour: Generally brightly coloured

Shape of head: Head is long, triangular and posteri­or portion is wide.

Neck: Neck always constricted.

Hood: Most of the time, it is extremely developed in the Cobra Group. It is not present in Coral snakes Krait the viper, and even Russell’s and others.

Tail: Tails are abruptly tapered however for Sea snakes (Hydrophidae) the tail can be flat-inclined to form an oar-shaped shape as well in land snakes, the tail is cylindrical.

Head scales: Head scales are generally tiny.

Dorsal scales: Dorsal surface scales are smaller; however the spine (vertebral) scales appear bigger and hexagonal in kraits.

Ventral scales: Ventral scales are typically fully across the belly. However, in sea snakes, ventral scales do not extend completely across the body.

Poisonous and Non-Poisonous Snakes Difference

Difference between Poisonous and Non Poisonous Snakes: Head Structure, Image Source: https://www.snakesox.com/ 

The Loreal shield: Shapes could be different.

Mental shield: fourth is huge.

Scales of Caudal: Mostly undivided except cobra snakes and coral.

Teeth: A majority of our teeth are strong and uniform except for maxillary teeth, which are massive and fitted with a canal or groove. The large teeth are referred to as “Fangs”.

Poison gland: Present. The poison glands have been paired on the upper jaw.

Muscular system: Less-developed muscular system.

Lungs: A portion of the lung’s functions has been diminished or is absent.

Hypophysis: Developed all over the vertebral.

Streptostylism: Well-marked.

Example: Saw Scaled Viper (Echis carinatus), Common Krait (Bungarus caeruleus), Banded Krait (B. fasciatus), Russell’s Viper (Vipera russelli), King Cobra (Ophiopagus hannah), Indian Monocled Cobra (Naja naja kaouthia).

Non-Poisonous Snakes

Color: Usually not brightly colored, however, pythons, common boas and red sand boa wart snakes, anaconda (Acrochordus granulatus) and others are vibrantly colored.

The shape of the head: Head is usually narrow and long.

Neck: Neck is not constricted.

Hood: Hood missing.

Tail: Long and tapered tail, except for snakes that burrow. The tail is short and rough. Typhlopidae as well as Leptotyphlopidae it is small and stumpy. The tail is short and stumpy. Uropeltidae this tail can be small and rough. In sand boas, too, the tail is blunt and short.

Head Scales The scales at the crown of your head appear big however in the sand boas (Eryx conicus) the head scales are tiny.

Scales of the dorsal region: The scales that are on the dorsal side are longer, however the spinal (vertebral) scales aren’t more long and hexagonal.

Poisonous and Non-Poisonous Snakes Difference

Difference between Poisonous and Non Poisonous Snakes: Venom Gland in poisonous snakes. 

Ventral scales: Ventral scales lie generally across the belly entirely (e.g., Colubridae) or are not entirely all the way across (e.g., Boidae, Uropeltidae).

The Loreal shield: Absent

The mental shield: Small

Causedal Scales: Uniform, solid and

Teeth: Uniformed and strong

Poison gland: Absent

Muscular system: Strongly developed muscular system.

Lungs: Both lungs are present.

Hypophysis Hypophyses those are absent or not present in the dorsal vertebrae posterior.

Streptostylism: Less marked.

Example: Rat Snake (Ptyas mucosus), Indian Python (Python molurus), Sand Boa (Eryx conicus), Checkered keel back [Natrix (Xenocrophis) piscator], Wolf Snake (Lycodon aulicus), Striped Keel back (Amphiesma stolata).

Further Readings