Parachiloglanis bhutanensis

Parachiloglanis bhutanensis has a brown, somewhat translucent body, with a pale yellow head. The average length of the specimens collected by Thoni & Gurung (2014) was 3 to 4 inches. The head is broad, blunt, and rounded, rising out of the body at roughly a 45-degree angle from the snout. Along the sides of the body, there is a lateral line of white pores. Parachiloglanis bhutanensis is different from the first Parachiloglanis species, Parachiloglanis hodgarti, by the lateral white pores running the length of the body, and differs from the other genera in the subfamily Glyptosterninae by the absence of a post-labial grove on the lower lip.

The first specimens of Parachiloglanis bhutanensis were discovered in the cascades of a small, fast-flowing stream, over 2,000 meters above sea level, while adhering to the underside of boulders. The initial streams near Khaling were fed by mountain springs, rainwater, and snow melted from nearby mountains, with very little algae. Thoni & Gurung speculated that the species evolved to a high-speed environment with paired fins to cling to rocks and a mouth that adapted to scraping invertebrates from the bottom of the streams.