Tonna luteostoma

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Tonna luteostoma
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Neotaenioglossa
Family: Tonnidae
Genus: Tonna
Species: T. luteostoma
Binomial name
Tonna luteostoma
(Küster, 1857)
Synonyms

Dolium luteostomum Küster, 1857

Tonna luteostoma is a large species of sea snail or tun snail, a marine gastropod mollusc in the family Tonnidae, the tun snails or tun shells.

[edit] Distribution

This species occurs in the Indo-Pacific seas, north to Japan and south to New Zealand.

[edit] Shell description

The shell is similar to Tonna tankervillii but it is always smaller, and it has a flattened shoulder area, and deeper, wider, and more square-cut interspaces to the corrugations.

The shell coloration is variable, but it is usually diffused with reddish-brown on a white ground, the corrugations with numerous rectangular maculations in dark reddish-brown. The interior is bright chestnut-brown, fading to whitish at the outer-lip.

The shell height is up to 122 mm, and the width up to 94 mm.

[edit] References