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
Clark's anemonefish white bands. Fish living with the host anemone Stichodactyla mertensii, Mertens' carpet sea anemone are frequently black except for the snout bars and tail. The caudal fin is forked and the base lacks a white bar on Amphiprion latifasciatus. The caudal fin lacks the sharp demarcation between white and dark and the mid-body bar is narrower on Amphiprion allardi and Amphiprion akindynos. The caudal fin is dark on Amphiprion chrysogaster, Amphiprion fuscocaudatus and Amphiprion tricinctus. Clark's anemonefish is the most widely distributed anemonefish, being found in tropical waters from the Indian Ocean to the Western Pacific. Clark's anemonefish is the