Abalone (i/ˈæbəloʊniː/ or /ˌæbəˈloʊniː/; via Spanish abulón, from the (Rumsen) aulón), is a common name for any of a group of small to very large edible sea snails, marine gastropod molluscs in the family Haliotidae. Other common names are ear shells, sea ears, as well as muttonfish or muttonshells in Australia, ormer in Great Britain, perlemoen and venus's-ears in South Africa and pāua in New Zealand.
The family Haliotidae contains only one genus, Haliotis. That genus contains about four to seven subgenera. The number of species recognized worldwide ranges between 30 and 130 with over 200 species-level taxa described. The most comprehensive treatment of the family considers 56 species valid, with 18 additional subspecies.
The shells of abalones have a low and open spiral structure, and are characterized by several open respiratory pores in a row near the shell's outer edge. The thick inner layer of the shell is composed of nacre or mother-of-pearl, which in many species is highly iridescent, giving rise to a range of strong and changeable colors, which make the shells attractive to humans as decorative objects, and as a source of colorful mother-of-pearl.
The flesh of abalones is widely considered to be a desirable food, and is consumed raw or cooked in a variety of different dishes.
Read more about Abalone: Description, Distribution, Structure and Properties of The Shell, Diseases and Pests, Human Use, Threat of Extinction, Species