Ammonicera is a genus of minute sea snails, marine gastropod molluscs or micromollusks in the family Omalogyridae.Bouchet, P.; Gofas, S. (2012). Ammonicera Vayssière, 1893. Accessed through: World Register of Marine * At http://www.marinespecies.org/aphia.php?p=taxdetails&id=138275 on 2012-08-31 They are found in various locations such as the Eastern Pacific coasts of the United States and Mexico, Japan, and the Mediterranean.

This genus comprises the smallest gastropods known, featuring discoid, planispiral shells that typically measure in the adult state 1 mm or even less in size. The protoconch is characterized by distinct ridges and grooves. The teleoconch typically displays prominent sculpture, though it is occasionally weak. The aperture ranges from rounded to subquadrate.

The diet of the Ammonicera is not confirmed, however, based on the diets of other Omalogyridae, it is assumed to feed on several algal species in its habitat.

Species Species within the genus Ammonicera include:

Ammonicera albanyensis Rubio & Rolán, 2020 Ammonicera albospeciosa Rolán, 1992 Ammonicera andresi J. D. Oliver & Rolán, 2015 Ammonicera angulata Sleurs, 1985 Ammonicera arrondoi J. D. Oliver & Rolán, 2015 Ammonicera aurea Waki, Rolán, Noseworthy, H.-S. Kang & K.-S. Choi, 2017 Ammonicera binodosa Sleurs, 1985 Ammonicera burnayi Rolán, 1991 Ammonicera caledonica Rubio & Rolán, 2020 Ammonicera chosenica Chernyshev, 2003 Ammonicera circumcirra Rolán, 1992 Ammonicera columbretensis J. D. Oliver & Rolán, 2015 Ammonicera consilii Antit, Gofas & Taviani, 2024 Ammonicera croata Rubio & Rolán, 2020 † Ammonicera eocaenica (Allix, 1923) Ammonicera extracarinacostata Sleurs, 1985 Ammonicera familiaris Rolán, 1992 Ammonicera fischeriana (Monterosato, 1869) Ammonicera galaica J. D. Oliver & Rolán, 2015 Ammonicera gonzalezi Rolán & Rubio, 2017 Ammonicera japonica Habe, 1972 Ammonicera lignea (Palazzi, 1988) Ammonicera lineofuscata Rolán, 1992 Ammonicera mcleani Sartori & Bieler, 2014 Ammonicera mexicana Sartori & Bieler, 2014 Ammonicera minortalis Rolán, 1992 Ammonicera multistriata Rolán, 1991 Ammonicera nodicarinata (Sleurs, 1985) Ammonicera nodulosa J. D. Oliver & Rolán, 2015 Ammonicera nolai Rolán, 1991 Ammonicera oteroi Rolán, 1991 Ammonicera pascuensis Rubio & Rolán, 2020 Ammonicera plana Simone, 1997 Ammonicera plicata Sleurs, 1985 Ammonicera robusta Rolán, 1991 Ammonicera rota (Forbes & Hanley, 1850) Ammonicera rotundata (Palazzi, 1988) Ammonicera san Rolán & Peñas, 2009 Ammonicera sculpturata Rolán, 1992 Ammonicera shornikovi Chernyshev, 2003 Ammonicera sleursi Sartori & Bieler, 2014 Ammonicera sucina (Laseron, 1954) Ammonicera superstriata J. D. Oliver & Rolán, 2015 Ammonicera tahitiensis Rubio, Rolán & Letourneux, 2020 Ammonicera tenuicostata Sleurs, 1985 Ammonicera tomalba Rubio & Rolán, 2020 Ammonicera tomensis Rubio & Rolán, 2020 Ammonicera vangoethemi (Sleurs, 1985) Ammonicera verdensis Rolán, 1991 Ammonicera vladivostokensis Chernyshev, 2003

See also Smallest organisms

References

Vaught, K.C. (1989). A classification of the living Mollusca. American Malacologists: Melbourne, FL (USA). . XII, 195 pp. Bieler R & Mikkelsen P. (1998), Ammonicera in Florida - Notes on the smallest living gastropod in the United States and comments on other species of Omalogyridae (Heterobranchia); The Nautilus, 111(1):1-12, 1998 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 Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda Spencer, H.; Marshall. B. (2009). All Mollusca except Opisthobranchia. In: Gordon, D. (Ed.) (2009). New Zealand Inventory of Biodiversity. Volume One: Kingdom Animalia. 584 pp

External links Vayssiere, A. 1893. Observations zoologiques anatomiques sur l'Ammonicera, nouveau genre de gasteropode prosobranche. Annales de la Faculte des Sciences de Marseille, 3 15-28 1 pl.