Alvania hallgassi is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.
Description The length of the shell varies between 2 mm and 3 mm.
Distribution This marine species occurs off Otranto, Italy; also off Greece.
References
Amati B. & Oliverio M. (1985). Alvania (Alvaniella) hallgassii sp. n. (Gastropoda, Prosobranchia). Notiziario del C.I.S.MA. 6(1-2): 28-34 Romani L. (2014). Alvania dalmatica Buzzurro et Prkic, 2007 (Gastropoda Rissoidae): range extension, shell variability, habitat and relationships with A. hallgassi Amati et Oliverio, 1985. Biodiversity Journal. 5(4): 509-514
External links Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca. in: Costello, M.J. et al. (eds), European Register of Marine Species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Patrimoines Naturels. 50: 180-213 Thanasis Manousis, The Marine Mollusca of Greece: an up-to-date, systematic catalogue, documented with bibliographic and pictorial references Conchology.be: image