The fish used in the study should represent C. gachua sensu stricto based on their origin, and were distinguished from other Channa species from northern India by the following characters: u-shaped isthmus; cephalic pores arranged singly; pelvic-fins present; tooth plates present on both sides of first gill arch; pectoral-fin with transverse black bars; sides of body without numerous black spots; no bars on upper portion of body; 45-46 lateral scales.
Channa harcourtbutleri is a species of snakehead endemic to Inle Lake and surroundings in Myanmar. Locally called nga ohn-ma, among aquarists it is known as one of the "dwarf snakeheads", but no significant import for aquarists is known. It is one of the smallest species of snakehead and has a length of 20 cm.
Channa pleurophthalma can reach a length of about 40 centimetres (16 in). Body is cylindrical, laterally flattened and has an iridescent greenish or bluish basic color, with 2-3 big black patches, which are outlined in orange and an additional ocellus on both the opercle and caudal fin.
The forest snakehead (Channa lucius) is a species of snakehead, a fish of the family Channidae. It lives in forest streams and can reach 40 cm in length. Its range includes most of Southeast Asia and parts of southern China. The forest snakehead is known in Thai language as pla krasong (Thai: ปลากระสง).
Northern snakehead can adapt to a wide range of aquatic habitats and has been predicted to have high environmental suitability in the northern U.S. and southern Canada, including abundant potential habitat in the Great Lakes (Herborg et al. 2007, Mendoza-Alfaro et al. 2009, NSWG 2006).
The orange-spotted snakehead (Channa aurantimaculata) is a species of snakehead fish. Its body is of brownish colour intermixed with vertical orange stripes. Males have taller dorsal fins with more intense coloration, and narrower heads. It is endemic to Brahmaputra River basin.
Channa striata, the striped snakehead, is a species of snakehead fish. It is also known as the common snakehead, chevron snakehead and snakehead murrel. It is native to South and Southeast Asia, and has been introduced to some Pacific Islands (reports from Madagascar and Hawaii are misidentifications of C. maculata).