Why in news?
Herpetologists at the Assam State Zoo and Botanical Garden have reported the first documented case of albinism in a checkered keelback snake (Fowlea piscator) from Assam. On 1 June 2024 a juvenile albino male measuring 29 cm was found near the zoo in Guwahati. The observation, published in November 2025 in the journal Reptiles & Amphibians, adds to the few recorded instances of hypopigmentation in this common water snake.
Background on the species
The checkered keelback, also called the Asiatic water snake, is a non-venomous species of the family Colubridae found across South and Southeast Asia. It has variable colour patterns of dark spots or bands on a light background and typically grows up to 1.75 m in length. The species lives in and around freshwater bodies and paddy fields, is active both day and night and feeds mainly on fish, amphibians and small arthropods. Females lay clutches of 30-70 eggs and guard them until they hatch.
Albinism case details
- Rare genetic anomaly: Albinism is a form of hypopigmentation characterised by absence of melanin pigment. In snakes it results in pale bodies and red eyes. Reports of hypopigmentation in checkered keelbacks are scarce.
- Observation: The juvenile male was found at around 7 p.m. on 1 June 2024 near the Assam State Zoo, with normal scalation matching descriptions of F. piscator. The study confirmed this as the first documented albino individual from Assam.
- Significance: Recording such anomalies helps herpetologists understand genetic diversity and informs conservation. Though the checkered keelback is listed as "Least Concern" by the IUCN, monitoring populations ensures early detection of threats.
Why this matters
Documenting rare colour morphs adds to our understanding of biodiversity. It also raises awareness about the reptiles living in urban ecosystems like Guwahati. Such findings can inspire citizen science and conservation education programmes.
Sources: Reptiles & Amphibians · Checkered keelback