VETIGASTROPODAVETIGASTROPODA
| Nicaragua 1988 | North Vietnam 1974 |
 |
 |
|---|---|
| Maculated Top Shell Trochus maculates (Trochidae) |
Elegant Abalone Haliotis elegans (Haliotidae) |
| Japan 1963 | Japan 1967 | Japan 1988 |
 |
 |
 |
|---|---|---|
| Hirase's Slit Shell Mikadotrochus hirasei (Pleurotomariidae) |
Horned Turban Batillus cornutus (Turbinidae) |
Triumphant Star Turban Guildfordia triumphans (Turbinidae) |
As for Vetigastropoda, the radula have fan tongue form or beam tongue form. The shell does not have a water pipe ditch. There are many things of the in-vitro fertilization. It is often that there are a ditch and an aperture putting an exhaust pipe in and out on a shell. The shell inside is quality of pearl.
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