New catfish species (Glyptothorax chakpiensis) discovered in Chakpi River, Manipur

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New catfish species (Glyptothorax chakpiensis) discovered in Chakpi River, Manipur :: Picture Courtesy - The People's Chronicle

A team of researchers has identified a new species of catfish, Glyptothorax chakpiensis, in Chakpi River, part of the Chindwin drainage. The discovery was highlighted in the Zoological Survey of India's Records (Volume 124, Issue 3, 2024), published on January 16 2025.

The research was led by Bungdon Shangningam of Ghanapriya Women's College, under Dhanamanjuri University, Imphal, and Laishram Kosygin from the Zoological Survey of India, Kolkata.

This new addition to the genus Glyptothorax, known for its adaptability to fast-flowing streams, highlights the rich biodiversity of the region. The fish was collected from the Dujang River, a tributary of the Chakpi River, which flows through a rocky, cool, and fast-flowing habitat in Chandel district.

This slender-bodied species is distinct from its relatives due to its lanceolate thoracic adhesive apparatus, which helps it grip the rocky substrates of its environment. The species exhibits a unique colour pattern with two longitudinal yellowish stripes running along its body.

Measuring between 61 mm and 83 mm in length, the fish also features small eyes, a short nasal barbel, and a deeply forked caudal fin marked by triangular dark blotches.

"The new species' thoracic adhesive apparatus, barbel length, and coloration set it apart from other Glyptothorax species found in the Chindwin drainage," the researchers noted.

Glyptothorax chakpiensis adds to the known diversity of Glyptothorax, a genus with species scattered across South and Southeast Asia.

The researchers highlighted the importance of preserving the habitat of the Chakpi River, as species like this one are often endemic and restricted to specific river systems.

The study also involved meticulous comparisons with closely related species in neighbouring river systems, including the Barak-Surma-Meghna and Ganga-Brahmaputra drainages.