Onoba semicostata

Onoba semicostata
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Rissoidae
Genus:	Onoba
Species:	O. semicostata
Binomial name
Onoba semicostata (Montagu, 1803)
Synonyms [1]
Cingula semicostata(Montagu, 1803) Cingula striata(Adams, 1797) (nomen dubium) Odostomia marionaeMacGillivray, 1843 (dubious synonym) Onoba candida(Brown, 1844) Onoba scotiana(Melvill & Standen, 1907) Onoba striata(J. Adams, 1797) (non da Costa, 1778) Pyramis candidusBrown, 1827 (dubious synonym) Pyramis decussatusBrown, 1827 (dubious synonym) Pyramis discorsBrown, 1827 (dubious synonym) Rissoa communisForbes, 1838 (dubious synonym) Rissoa ecostataMichaud, 1830 Rissoa gracilisMacGillivray, 1843 Rissoa minutissimaMichaud, 1830 Rissoa peticularisMenke, 1830 Rissoa scotianaMelvill & Standen, 1907 Rissoa striataJ. Adams, 1797 Rissoia scotianaMelvill & Standen, 1907 Turbo semicostatusMontagu, 1803 (original combination) Turbo shepeianusJ. Adams, 1798 Turbo striatusJ. Adams, 1797 (Invalid: junior secondary homonym of Rissoa striataDa Costa, 1778)

Onoba semicostata is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae. ^[1]

Classification

Turbo semicostatusMontagu, 1803 is probably another species than those which is mostly understand by that name. According to Warén Turbo shepeianus could be the valid name for this species found off Belgium. Further research is necessary, therefore we use the more commonly used name Onoba semicostata. ^[1]

Taxonomy

Janssen (1975) mentioned two subspecies: O. s. semicostata and O. s. aculeus (Gould, 1841). Thorson (1941), Warén (1973, 1974) and Fretter & Graham (1978) are followed who both consider O. s. semicostata and O. s. aculeus as separate species. ^[1]

Distribution

This marine species occurs in the Baltic Sea, the North Sea, the Northern and Northeast Atlantic Ocean and in the Mediterranean Sea.

References

1. Onoba semicostata (Montagu, 1803) . Gofas, S. (2009). Onoba semicostata ( Montagu , 1803). In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2009) World Marine Mollusca database. Accessed through the World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=141320 on 2 November 2010 .

• Montagu, G. (1803) Testacea Britannica or Natural History of British Shells, Marine, Land, and Fresh-water, Including the Most Minute: Systematically Arranged and Embellished with Figures. J. White, London, Vol. 1, xxxvii + 291 pp. and Vol. 2, 293–606 pp.
• Ziegelmeier, E. (1966). Die Schnecken (Gastropoda Prosobranchia) der deutsche Meeresgebiete und brackigen Küstengewässer [The Gastropoda Prosobranchia from the German seas and brackish coastal waters]. Helgol. Wiss. Meeresunters. 13: 1-66
• Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213