Abyssochrysos
Abyssochrysos is a genus of bathyal sea snails, marine gastropod mollusks in the family Abyssochrysidae.
Description
The characteristics of the species mark this genus as simple gastropods, unassigned in the clade Caenogastropoda. Their taenioglossate radula is unique among the Prosobranchia because of the sickle-shaped rachidian tooth and the thick,sinuous, sharply cusped lateral teeth. They have tentacles but lack eyes. The mantle cavity goes deep. The long, wide ctenidium is monopectinate. The pallial gonoducts are closed. The large penis-like organ is a right-dorsal mantle process.
Species
Species within the genus Abyssochrysos include:Abyssochrysos bicinctus Bouchet, 1991- † Abyssochrysos bituminifer Abyssochrysos brasilianus Bouchet, 1991
- † Abyssochrysos costatus Abyssochrysos eburneus Locard, 1897Abyssochrysos melanioides Tomlin, 1927Abyssochrysos melvilli Schepman, 1909Abyssochrysos xouthos Killeen & Oliver, 2000
- † Abyssochrysos giganteum Kiel, K. A. Campbell, Elder & C. Little, 2008: synonym of † Ascheria gigantea Abyssochrysos tomlini Barnard, 1963: synonym of ''Abyssochrysos melvilli''