Значение слова "EAR SAC" найдено в 1 источнике

EAR SAC

найдено в "Dictionary of ichthyology"

branchial sac or gill pouch (the sac containing the gills and communicating with the mouth cavity and with the exterior in Myxini and Petromyzontiformes). Probably meant to be any pouch or sac surrounding the gills in fishes generally


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