NOKTHWEST COAST MAKINE SHELLBEARING MOLLUSKS. 201 
Drillia, see Cymatosyrinx and Clathrodrillia. 
Drillia inermis, see ophioderma. 
Drillia cancellata, see rhines. 
Eucosmia, see Eulithidium. 
EuUma, see Melanella. 
Euthria, see Searlesia. 
Fissuridea, see Diadora. 
Fusus, see Fusinus. 
Fiisus robustus Trask, see F. monksae Dali. 
Fusus rugosus Trask, see F. traski Dali. 
Gibbula, see also Lirularia. 
Glyphis, see Diadora. 
Gyrodisca, see MegalompJialus. 
Harfordia, new section, type, Fusus harfordi Stearns. 
Hydrobia, see Cingula. 
Isapis, see Iselica. 
Jeffreysia, see Rissoella. 
Limacina, see Spiratella. 
Tjimato fusus, new section, type Aulacofusus tahwitanus Dali. 
Liostraca, see Strombiformis. 
Littorina grandis, see squalida. 
Lucapina, see Megathura. , 
Lunatia, see Euspira. 
Macrochasma, see Megathura. 
M acromphalina, see Megalomplialus. 
Mangilia funebrale, see M. levidensis. 
Mangilia widens Carpenter, not Sowerby, see pulchrior. 
Margarita, see Margarites. 
Margarita inflata Carpenter, 1864, see inflatula. 
Margarita inflata Carpenter, 1865, see rhodia. 
Maugerella, see Stenoradsia. 
Mitra nodoso-cancellata, see M. solitaria. 
Modiolaria, see Musculus. 
Monoceros, see Acanthina. 
Monoceros engonatum, see Acanthina spirata. 
Murex californica, see erinaceoides. 
Mur ex ineisa, see Triremis gemma. 
Murex painei, see Tritonalia. 
My sella, see Rochefortia. 
Mytilus hamatus, see recurvus. 
Nacella, see Rhodopetala. 
Nettastomella darwini, see N. rostrata. 
Nitidella dalU E. A. Smith, see gouldii Carpenter. 
Nuttallina scabra, see N. fluxa. 
Oeinebra, see Tritonalia. 
Odostorma tenuis, see Evalea io. 
Oedalina, see Cooperella. 
Olivella intorta, see O. pedroana Conrad. 
Onchidella, see Arctonchis. 
Opalia borealis, see wroblewskii. 
Pachydesma eras sat elloides, see P. stultorum. 
Panomya norvegica, see P. arctica. 
Pectunculus, see Glyeymeris. 
