Fowlea asperrima

Fowlea asperrima is endemic to Sri Lanka. It is non-venomous and belongs to Colubridae family.

Sri Lanka wolf snake (Lycodon carinatus)

Scales are identical in size and keeled.

English: Sri Lanka wolf snake
Binomial: Lycodon carinatus
Sinhala: දාර රදනකයා[Dara Radanakaya]

Sri Lanka wolf snake is an endemic and nocturnal species of snakes found in Sri Lanka. They mainly live in lowland wet and submontane zones and prefer damp forest areas. Above photographed one also found while it was in a wet place of the forest ground. This species is non-venomous. But it greatly mimics deadly venomous Sri Lankan krait in morphology and coloration. This snake has identically sized rough scales on the back and those have been keeled. But Kraits have large hexagonal line of scales running down the spine and the body of the Krait is shiny compared to the Sri Lankan wolf snake.

Referaces: 

•  L. J Mendis Wickramasinghe: Recognizing Deadly Venomous Snakes form Harmless Snakes of Sri Lanka – Dilmah conservation
•  Richira Somaweera : Snakes of Sri Lanka[in Sinhala]

Beddome's cat snake (Boiga beddomei)

English: Beddome's cat snake
Binomial: Boiga beddomei
Sinhala: කහ මාපිලා[Kaha mapila]

Beddome's cat snake is a nocturnal and mostly arboreal colubrine snake found in Sri Lanka and India. It is considered to be mildly venomous. Above photographed one was found in a wet zone forest  of Sri Lanka in December, 2015.

Shaw’s Wolf Snake (Lycodon striatus sinhaleyus)

English: Shaw’s Wolf Snake
Binomial Name: Lycodon striatus sinhaleyus
Sinhala: ඉරි කරවලා/කබර රදනකයා[Iri karawala/Kabara radanakaya]

Shaw’s Wolf Snake is a non venomous colubrid snake found in Sri Lanka. Sub species sinhaleyus is endemic. Other sub species of this snake has been distributed in other Asian countries. More common in wet-zone compared to dry zone. Feed on geckos. Most of the time it is misunderstood with venomous Kraits.

Sri Lanka cat snake (Boiga ceylonensis)

English : Sri Lanka cat snake

Binomial Name : Boiga ceylonensis

Sinhala : නිදි මාපිලා[Nidi mapila]

Boiga ceylonensis is a mildly venomous species of snake lives in Sri Lanka and India.

This snake is nocturnal and lives in evergreen forests. They mainly feed on lizards and geckos. In Sri Lanka there is a belief that this snake is highly venomous and bites people at night while sleeping to die in the sleep.

Trinket snake (Coelognathus helena)

Eggs

English : Trinket snake

Binomial Name :Coelognathus helena

Sinhala : කටකලුවා / හබරලියා [Katakaluwa / Habaraliya]

C. helena is a nonvenomous snake of Sri Lanka. This snake can be found in wet zone and dry zone with the elevation above the sea level is lesser than 1000 meters. It has a black color tongue and a mouth. Mouth is opened to show black color when threatened.

Common Rough-sided snake (Aspidura trachyprocta)

English : Rough-sided snake
Binomial Name : Aspidura trachyprocta
Sinhala : දලව මැඩිල්ලා [Dalawa Madilla]

Aspidura trachyprocta is a non venomous endemic snake living in highlands of Sri Lanka. It is nocturnal and the most common snake of Horton plains national park. They come in various colors ranging from blackish brown to light reddish brown. Its diet consists of earth worms and ants.

Green vine snake (Ahaetulla nasuta)

English : Green vine snake
Binomial name : Ahaetulla nasuta
Sinhala : ඇහැටුල්ලා / ඇස්ගුල්ලා

Green vine snake is a mildly venomous reptile living in all environmental regions of Sri Lanka except montane zones elevation above the sea level is greater than 1000 meters. Most of the time this snake can be seen on trees or shrubs. They have a green color body as an adaptation for arboreal life. Their female snakes give birth to young instead of laying eggs. There is a folk story among Sri Lankan people that this snake pull out human eyes using its pointed head when threatened, which is not true. A.nasuta feed on lizards and frogs.