Discovery of Alpheus madhusoodanai

Discovery of Alpheus madhusoodanai

The recent discovery of a new pistol shrimp species, Alpheus madhusoodanai, in the backwaters of Kochi highlights the rich and underexplored marine biodiversity of India’s coastal ecosystems. Named in honour of noted fisheries scientist B. Madhusoodana Kurup, the species belongs to the Alpheidae family, commonly known as snapping or pistol shrimps.

A defining feature of this shrimp is its asymmetrical enlarged claw, capable of producing a powerful “snap.” This action generates a high-velocity water jet, forming a cavitation bubble that collapses with an intense sound and brief flash of light (sonoluminescence). Such adaptations are used for hunting and defence. The shrimp also exhibits a semi-transparent body with distinct reddish-brown markings, aiding camouflage in estuarine habitats.