Punctulum flavum is a species of small sea snail, a marine gastropod mollusk or micromollusk in the family Rissoidae.Bouchet, P. (2011). Punctulum flavum (Okutani, 1964). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=580250 on 2012-07-25
References
Golikov A.N. & Sirenko B.I. (1998) Prosobranch gastropods of the continental slope of Kurile Islands.[In Russian] Ruthenica 8(2): 91–135. Hasegawa K. (2009) Upper bathyal gastropods of the Pacific coast of northern Honshu, Japan, chiefly collected by R/V Wakataka-maru. In: T. Fujita (ed.), Deep-sea fauna and pollutants off Pacific coast of northern Japan. National Museum of Nature and Science Monographs 39: 225-383. Hasegawa K. & Okutani T. (2011) A review of bathyal shell-bearing gastropods in Sagami Bay. Memoirs of the National Sciences Museum, Tokyo 47: 97-144.