SCHISTURA SONARENGAENSIS (Syllabus: GS Paper 3 – Env and Eco)

News-CRUX-10     3rd August 2024        

Context: A group of scientists has identified a new species of loach in Meghalaya’s South Garo Hills district, near Bangladesh border.


Schistura sonarengaensis

  • About: It is a new species of loach.

o Loach is a freshwater bottom-dwelling fish and found across rivers in South East Asia.

  • Geographic Range: Found in cave-dwelling populations within the Barak-Surma-Meghna drainage in the South Garo Hills district of Meghalaya.
  • Physical Characteristics:

o Distinctive Appearance: Features prominent eyes and 13-26 vertically elongated to circular black blotches on a grayish-black mid-lateral stripe over a dull white or pale-beige body.

o Reduced Pigmentation: Shows less pigmentation compared to surface-dwelling relatives, but does not have the typical subterranean adaptations like blindness.

o Comparison to Other Species: Retains prominent eyes and differs from other Schistura species in the Barak-Surma-Meghna and adjacent river drainages of northeast India, except for Schistura syngkai.