Tonna allium (Costate Tun) is a species of Gastropoda in the family Tun Shell Snails. This species is extinct. They were found in marine habitat. They were native to Mozambican Exclusive Economic Zone and Natal. Dead Costate Tun form shallow marine sediments. They were carnivores. Individuals could grow to 80 mm. They had sexual reproduction.
EOL has data for 23 attributes, including: