Cyclocheilichthys

Cyclocheilichthys is a genus of small, freshwater fish belonging to the family Cyprinidae, which includes carps and minnows. The genus is native to the Indomalayan realm, with species found in rivers and streams across Southeast Asia, including India, Bangladesh, Myanmar, and parts of China. The name "Cyclocheilichthys" is derived from the Greek words "kyklos" meaning circle, and "cheilos" meaning lip, referring to the circular lips of the fish.

Species within the genus Cyclocheilichthys are typically small, with most reaching lengths of 10-15 centimeters. They are known for their distinctive appearance, characterized by a circular mouth and a body shape that is often elongated and compressed. The coloration varies among species, ranging from olive-green to brown, with some species exhibiting darker markings or patterns.

Cyclocheilichthys species are generally omnivorous, feeding on a diet of algae, insects, and small crustaceans. They are often found in shallow, slow-moving waters, where they can be observed using their circular mouths to filter-feed or scrape algae from surfaces.

The genus Cyclocheilichthys is of interest to ichthyologists and aquarists alike, due to its unique appearance and the relatively small number of species compared to other genera within the family Cyprinidae. However, some species are considered threatened due to habitat loss and pollution, highlighting the importance of conservation efforts to protect these fascinating fish.