Blyth's River Frog

Fascinating facts about the Blyth's River Frog

• A female Blyth's river frog can reach up to 260 mm from snout to vent and weigh more than a kilogram.
• Males carve out a shallow nesting hollow in the sandy bottom of forest streams, turning a simple patch of gravel into a hidden nursery for their tadpoles.
• These amphibians inhabit streams with gravel and rocks in primary and secondary evergreen forests, and they can also be found far from streams.
• The frog’s skin ranges from brownish to yellowish on top, often with a faint vertebral stripe, while the belly can be white or yellow, giving it a subtle two-tone camouflage in leaf litter and shallow water.
• Local people hunt Blyth's river frogs for food and trade, and ongoing forest loss adds pressure.

At a glance

About the Blyth's River Frog

Blyth's river frog (Limnonectes blythii) is a large species, with females reaching a snout-vent length of 90–260 mm and males 85–125 mm, and the largest adults can weigh more than 1 kg. Their dorsal skin is smooth, sometimes bearing scattered tubercles or longitudinal folds, and they are brownish, grey, or yellowish above, often with a faint vertebral stripe, while the belly is white or yellow. They inhabit streams with gravel and rocks in primary and secondary evergreen forests across Myanmar, western Thailand, the Malay Peninsula, Sumatra, and Borneo; males build nesting hollows in sandy stream beds and the tadpoles develop in streams, though individuals may also be found far from streams.

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