Caudal mucous pit 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 mucous pit exists only
Synodontis filamentosus attached to flexible, stalk-like structures and described as "s-shaped" or "hooked". The number of teeth on the mandible is used to differentiate between species; in "S. filamentosus", there are about 20 teeth on the mandible. The color of the fish is greyish, with small, scattered dark spots, and whitish on the underside. The dorsal and caudal fins have small greyish spots. The lower borders of the caudal fin are black. The maximum standard length of the species is . Generally, females in the genus "Synodontis" tend to be slightly larger than males of the same age. In the wild, the