| 词条 | Abyssochrysos |
| 释义 |
| name = Abyssochrysos | image = Abyssochrysos melanioides.png | image_caption = anatomy of Abyssochrysos melanioides removed from the shell | regnum = Animalia | phylum = Mollusca | classis = Gastropoda | unranked_superfamilia= clade Caenogastropoda | superfamilia = Abyssochrysoidea | familia = Abyssochrysidae | subfamilia = | genus = Abyssochrysos | genus_authority = Tomlin, 1927[1] | synonyms_ref = | synonyms = | type_species= Abyssochrysos melanioides Tomlin, 1927 }}Abyssochrysos is a genus of bathyal sea snails, marine gastropod mollusks in the family Abyssochrysidae.[2] DescriptionThe 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] SpeciesSpecies within the genus Abyssochrysos include:
References1. ^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. ^{{WRMS species|345310|Abyssochrysos Tomlin, 1927||4 May 2010}} 3. ^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. ^1 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. ^{{WRMS species|701768|Abyssochrysos bicinctum Bouchet, 1991||4 May 2010}} 6. ^{{WRMS species|590705 |Abyssochrysos brasilianum Bouchet, 1991||4 May 2010}} 7. ^{{WRMS species|590706 |Abyssochrysos eburneum (Locard, 1897)||4 May 2010}} 8. ^{{WRMS species|345311|Abyssochrysos melanioides Tomlin, 1927||4 May 2010}} 9. ^{{WRMS species|345313|Abyssochrysos melvilli (Schepman, 1909)||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. ^{{WRMS species|345316|Abyssochrysos xouthos Killeen & Oliver, 2000||4 May 2010}}
2 : Abyssochrysidae|Abyssochrysos |
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