Typhlosyrinx neocaledoniensis P. Bouchet & A.V. Sysoev,2001
Taranidaphne nereidum (J.C. Melvill & R. Standen,1903)
Kermia netrodes J.C. Melvill, 1917
Pseudodaphnella nexa (L.A. Reeve, 1845)
Taranis nexilis (F.W. Hutton, 1885)
Taranis nexilis bicarinata (H.H. Suter, 1915)
Nepotilla nezi (T.A. Okutani, 1964)
Spergo nipponensis T.A. Okutani & A. Iwahori,1992
Eubela nipponica J.T. Kuroda, 1938
Famelica nitida A.V. Sysoev, 1990
Nepotilla nitidula A.W.B. Powell, 1940
Gymnobela nivea A.V. Sysoev, 1990
Raphitoma nivea (P. Marshall in E.R. Sykes,1906)
Rocroithys niveus A.V. Sysoev & P. Bouchet,2001
Daphnella nobilis T. Kira, 1959
Eucyclotoma nobilis C. Hedley, 1922
Teretiopsis nodicarinatus Y.I. Kantor & A.V. Sysoev,1989
Pseudodaphnella nodorete (W.L. May, 1916)
Buccinaria nodosa M. Morassi & A. Bonfitto,2010
Hokianga nodulata (FOSSIL) C.R. Laws, 1947 †
Pleurotomella normalis (W.H. Dall, 1881)
Raphitoma nubelosa W.H. Pease, 1860
Bathybela nudator (É.A.A. Locard, 1897)
Pseudodaphnella nympha A.E. Fedosov& N. Puillandre, 2012
Hemilienardia obesa (de Folin, 1879)
Pleurotomella obesa P. Bouchet & A. Warén,1980
Raphitoma obesa T. Høisæter, 2016
Tritonoturris obesa R.N. Kilburn, 1977
Phymorhynchus oculatus S.-Q. Zhang & S.-P. Zhang,2017
Gymnobela oculifera Y.I. Kantor & A.V. Sysoev,1986
Pleurotomella ohlini (H. Strebel, 1905)
Buccinaria okinawa (FOSSIL) F.S. MacNeil, 1960 †
Aliceia okutanii T. Sasaki & A. Warén,2007
Pseudodaphnella oligoina C. Hedley, 1922
Diaugasma olyra (L.A. Reeve, 1845)