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Published: 2022-05-16

A new diminutive subterranean eel loach species of the genus Pangio (Teleostei: Cobitidae) from Southern India

Department of Fisheries Resource Management, Kerala University of Fisheries and Ocean Studies (KUFOS), Kochi, India
Malabar Awareness and Rescue Centre for Wildlife (MARC), Kannur, India
Faculty of Ocean Science and Technology, Kerala University of Fisheries and Ocean Studies (KUFOS), Kochi, India. Zoo Outreach Organization (ZOO), Coimbatore, India
Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Delhi-NCR, India.
Department of Fisheries Resource Management, Kerala University of Fisheries and Ocean Studies (KUFOS), Kochi, India
Pisces freshwater fish groundwater taxonomy Western Ghats


A second subterranean species of Pangio is described from an old dug-out well in Kerala, Southern India. The new species, Pangio pathala is unique within the genus in possessing the highest number (27) of caudal vertebrae. Pangio pathala is distinguished from P. bhujia, the only subterranean Pangio species known so far, in having four pectoral-fin rays (vs. three), five anal-fin rays (vs. six), 67 vertebrae (40 abdominal and 27 caudal vertebrae) (vs. 62–63), and a raw genetic distance of 8.1–8.7% in the mitochondrial cytochrome oxidase subunit 1 gene. This paper also provides an additional record of Pangio bhujia from a location 40 km south of the type locality.



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