Cantharus njalindungensis (FOSSIL) K. Martin, 1921 † Indonesia, Java
Monostiolum nocturnum G.T. Watters, 2009
Buccinum nodocostum R. Tiba, 1984 Russia, Okhotsk Sea88,7 mm
Siphonalia nodosa (T. Martyn, 1784) New Zealand
Neptunea nodositella K. Fraussen & Y. Terryn,2007 Japan86,7 mm
Coptochetus nodosus (FOSSIL) F.E. Edwards † UK, England, Hampshire3,5 mm
Prosipho nodosus K.H.J. Thiele, 1912 Ross Sea3,5 mm
Hydrotribulus nodosus (FOSSIL) B. Wade, 1916 † Tennessee
Aeneator nodulifer (FOSSIL) (R.A. Philippi, 1887 †) Chile, Navidad Formation22,3 mm
Kelletia nodulosa (FOSSIL) (Sowerby, 1840 †) India, Gujarat, Kachchh
Siphonalia nodulosa A. Adams, 1863 Japan, Mishima Island
Euthria noligomesi E. Rolán & A. Monteiro,2007 Cape Verde31 mm
Neptunea nomurai (FOSSIL) Y. Otuka, 1943 † Japan, Akita
Cominella norfolkensis (T. Iredale, 1940) Norfolk Island
Crassicantharus norfolkensis W.F. Ponder, 1972
Volutopsius norwegicus (J.F. Gmelin, 1791) Iceland90,3 mm
Engina notabilis K. Fraussen & M. Chino,2011
Aeneator nothopanax (FOSSIL) C.A. Fleming, 1954 †
Strebela notophila (H. Strebel, 1908) New Zealand, Cook Strait
Crassicantharus noumeensis (J.C.H. Crosse, 1870) Réunion20,5 mm
Buccinum nudum (FOSSIL) Wood, 1879 † UK, England, Norfolk
Siphonalia nuntia (FOSSIL) A.A. Olsson, 1930 † Piura, Peru
Liomesus nux (FOSSIL) (T.A. Conrad 1857 †)
Pseudoliomesus nux (W.H. Dall, 1877) Aleutian Islands20 mm
Celatoconus nux (FOSSIL) (W.H. Dall, 1892 † †) Florida
Engina obliquecostata (L.A. Reeve, 1846) Philippines, Olango Island10 mm
Pisania obliquecostata (FOSSIL) R. Tate, 1888 †
Buccinum oblitum E.R. Sykes, 1911 Gorringe Seamount19 mm
Cominella obsoleta (FOSSIL) (Finlay, 1926 †)
Bathydomus obtectus K.H.J. Thiele, 1912 Antarctica, Oates Coast29,4 mm
Neptunea occaecata K. Fraussen & Y. Terryn,2007 Japan137,8 mm
Plicifusus oceanodromae W.H. Dall, 1919 Aleutian Islands51,7 mm
Buccinum ochotense Middendorf, 1848 Japan, Hokkaido102 mm
Lussivolutopsius ochotensis Y.I. Kantor, 1986 Korea
Neptunea ochotensis A.N. Golikov, 1962 Russia, Okhotsk Sea182 mm