The only species of Mohnia Friele, 1879 (Caenogastropoda, Buccinoidea, Buccinidae) in the North Pacific represents an unrecognized new genus of Newtoniellidae (Triphoroidea)

Shell morphology of Pseudomohnia gen. nov. A, B Pseudomohnia kurilana (Dall, 1913) comb. nov A lectotype, USNM 205224. Kuril Islands B ZIN 57494/1. Kuril Islands C, D Pseudomohnia sp. LACM 1997-156.7 Aleutian Islands E–I Pseudomohnia rogerclarki sp. nov. Aleutian Islands E holotype, LACM 3776 F LACM 1997-174 G LACM 1997-174 H LACM 1997-163.21 I LACM 1997-165.20. Scale bar: 1 cm.