Barilius is a genus of freshwater ray-finned fishes belonging to the family Danionidae, the danios or danionins.The fishes in this genus are found in Asia.Four species in this genus have been described since 2012, although three have since been reallocated to Opsarius, which was formerly a group within this genus before elevation to full genus.

Barilius spp. are predominantly surface-feeders preying on aquatic and terrestrial insects in nature, with some small fishes and benthic invertebrates probably taken as well.

Etymology: Barilius: Latinization of 'barila', presumably a Bengali local name for Barilius barila, but it lacks a proper reference (J. Müller, pers. comm., April 2021, after information from native speakers). More on author: Hamilton. Freshwater; benthopelagic. Tropical. Asia: India, Nepal, Bangladesh and Myanmar.

Oil fish (escolar); two types: smooth-skinned and rough-skinned, the latter with a higher oil content; for both, servings of more than 6 oz or 150 g may cause bothersome loose oily stools, for which it has been referred to as "xenical' fish.

Habitat in the Bhadra River basin near Kalasa, Chikamagalur district, Karnataka state. Wild adult male: locality unspecified. Detail of head, adult male individual. Note breeding tubercules on snout. Juveniles are less intensely-patterned than adults... ...and lack the spot of dark pigmentation seen on almost every body scale in adults.

Barilius barila (Bengali: বারালি) is a tropical fish in genus Barilius of the family Cyprinidae. It is commercially very important due to its superior taste. It is found in the Asian countries of India, Nepal, Bangladesh and Myanmar. [2] Normally found in clear streams in the foothills. Its maximum length is 10 cm.

Inhabits well-oxygenated, low-to-medium gradient, moderate to fast-flowing rivers and streams with substrates of gravel, cobbles, larger boulders and exposed bedrock, and apparently displays a preference for slower runs and associated pools.

any very large marine food and game fish of the genus Thunnus; related to mackerel; chiefly of warm waters. tropical American prickly pear of Jamaica. cacti having spiny flat joints and oval fruit that is edible in some species; often used as food for stock.