Tonna Tessalata hermit crab seashells are from the family of Tonnidae. Also Known as Tun Shells. Tonna hermit crab shells are thin light weight seashells. Tonna tessalata hermit crab shells are mostly found in tropical waters.
AKA: Banded Tun. The Sulcose Tonna is from the family of Tonnidae. Sulcose Tonna shells are white with brown stripes. Tonna shells are thin-shelled and the animal is usually larger than the shell itself. They are mostly found in tropical waters.