Tonna allium
Encyclopedia
Tonna allium, common name : the costate tun, is a species
of large sea snail
, a marine
gastropod mollusk in the family
Tonnidae
, the tun shells.
, the Mascarene Basin and Mauritius
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...
of large sea snail
Sea snail
Sea snail is a common name for those snails that normally live in saltwater, marine gastropod molluscs....
, a marine
Marine (ocean)
Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...
gastropod mollusk in the family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
Tonnidae
Tonnidae
Tonnidae is a family of medium-sized to very large sea snails, known as the tun shells. These are marine gastropod molluscs in the clade Sorbeoconcha and the clade Littorinimorpha.- Taxonomy :...
, the tun shells.
Description
The size of an adult shell varies between 50 mm and 131 mm.Distribution
This species is distributed in the Indian Ocean along MadagascarMadagascar
The Republic of Madagascar is an island country located in the Indian Ocean off the southeastern coast of Africa...
, the Mascarene Basin and Mauritius
Mauritius
Mauritius , officially the Republic of Mauritius is an island nation off the southeast coast of the African continent in the southwest Indian Ocean, about east of Madagascar...