Abyssochrysos

From Wikipedia, the free encyclopedia

Abyssochrysos
Abyssochrysos melanioides.png
anatomy of Abyssochrysos melanioides removed from the shell
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
Superfamily:
Abyssochrysoidea
Family:
Abyssochrysidae
Genus:
Abyssochrysos

Tomlin, 1927[1]
Type species
Abyssochrysos melanioides Tomlin, 1927

Abyssochrysos is a genus of bathyal sea snails, marine gastropod mollusks in the family Abyssochrysidae.[2]

Description[]

The characteristics (shell, radula and anatomy) of the species mark this genus as simple gastropods, unassigned in the clade Caenogastropoda. Their taenioglossate radula (formula: 2+1+1+1+2) 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 (about 2½ whorls). The long, wide ctenidium is monopectinate. The pallial gonoducts are closed. The large penis-like organ is a right-dorsal mantle process.[3]

Species[]

Species within the genus Abyssochrysos include:

Species brought into synonymy
  • Abyssochrysos bicinctum Bouchet, 1991: synonym of Abyssochrysos bicinctus Bouchet, 1991
  • Abyssochrysos brasilianum Bouchet, 1991: synonym of Abyssochrysos brasilianus Bouchet, 1991
  • Abyssochrysos eburneum (Locard, 1897): synonym of Abyssochrysos eburneus (Locard, 1897)

References[]

  1. ^ Tomlin J. R. le B. (1927). "Reports on the Marine Mollusca in the Collections of the South African Museum, II: Families Abyssochrysidae, Oocorythidae, Haliotidae, Tonnidae". Annals of the South African Museum 25(1): 77-83, 4 figures. page 77.
  2. ^ Abyssochrysos Tomlin, 1927. Retrieved through: World Register of Marine Species on 4 May 2010.
  3. ^ ¨Houbrick R.S. 1979. Classification and systematic relationships of the Abyssochrysidae, a relict family of bathyal snails (Prosobranchia; Gastropoda). Smithsonian Contributions to Zoology 290: 1-21
  4. ^ a b Bouchet P. (1991). "New records and new species of Abyssochrysos (Mollusca, Caenogastropoda). Journal of Natural History 25(2): 305–313. doi:10.1080/00222939100770221.
  5. ^ Abyssochrysos bicinctum Bouchet, 1991. Retrieved through: World Register of Marine Species on 4 May 2010.
  6. ^ Abyssochrysos brasilianum Bouchet, 1991. Retrieved through: World Register of Marine Species on 4 May 2010.
  7. ^ Abyssochrysos eburneum (Locard, 1897). Retrieved through: World Register of Marine Species on 4 May 2010.
  8. ^ Abyssochrysos melanioides Tomlin, 1927. Retrieved through: World Register of Marine Species on 4 May 2010.
  9. ^ Abyssochrysos melvilli (Schepman, 1909). Retrieved through: World Register of Marine Species on 4 May 2010.
  10. ^ Killeen I. J. & Oliver P. G. (2000). "A new species of Abyssochrysos (Gastropoda: Loxonematoidea) from the Oman margin". Journal of Molluscan Studies 66(1): 95–98. doi:10.1093/mollus/66.1.95
  11. ^ Abyssochrysos xouthos Killeen & Oliver, 2000. Retrieved through: World Register of Marine Species on 4 May 2010.
  • Bouchet P. (1991). New records and new species of Abyssochrysos (Mollusca, Caenogastropoda).' Journal of Natural History 25(2): 305–313
Retrieved from ""