Caudal mucous pit on some species included: Caudal mucous pit The caudal mucous pit, or caudal mucous horn, is an anatomical structure on the tail end of the foot of various land snails and slugs, terrestrial pulmonate gastropod mollusks. The function of this pit is the resorption of mucus when the gastropod is moving (see also Muratov 1999). An incorrect and yet often-used term for this structure is the "caudal gland". This area also used to be referred to by the term "caudal pore". Families of snails and slug where a caudal mucous pit exists in every species included: Families/subfamilies where is caudal
Puntius khohi of caudal fin, a little black spot is present behind the operculum, a black shade can be found behind the operculum, another black spot under the dorsal fin which extent to the base of caudal fin, compared to other species the body depth is less than the head length which is the reverse in other species, dorsal fin is located close to the snout than the base of caudal fin, lateral line is complete and is little concave in nature, and a light color band is found above to the lateral line paralleled. Live fish is colored silvery with black