36 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 66 



Plate 6 



Page 



Fig. 1. Buccinum tenue rhodium D all, alt. S9 mm 9 



2. Buccinum chartium T)sd\, alt. 60 mm 7 



3. Chrysodoraus vinosus Dall, alt. 90 mm 10 



4. Volutopsius rotundus T)a\l, alt. 105 mm 31 



5. Beringius nialleaius Dall, alt. 85 mm 5 



Plate 7 



Fig. 1. Ancistrolepis beringianus Dall, alt. 98 mm 3 



2. Beringius stimpsoni Gould, alt. 100 mm 6 



3. Beringius indentatus T)all, alt. 110 mm 5 



4. Chrysodoraus pribiloffensis Dall, alt. 94 mm 10 



Plate 8 



Fig. 1. Ag athoto ma quentinensis T>all, alt. W mm. 2 



2, 3. Macoma acolasta Dall, Ion. 22 mm 19 



4. Semele quentinensis Dall, Ion. 24 mm 26 



5. Cumingia densilineata Dall, Ion. 29 mm 15 



Plate 9 



Fig. 1. CreneZZa coZumftiana Dall, young shell, alt. 3.5 mm 15 



2. Euspira bahamensis Dall, diam. 7 mm 17 



3. Cadulus calif ornicus Pilsbry and Sharp, Ion. 20 mm 9 



4. Melanella micans borealis Bartsch, alt. 12.5 mm 20 



5. Aci'Za ca.si7-ens-is Hinds, Ion. 18 mm 2 



6. Calliostoma tricolor, Gahh alt. 19 mm 9 



7. Melanella randolphi Vanatta, alt. 7 mm 20 



8. T erebr a concava iiay, alt. 20 mm 27 



Plate 10 



Fig. 1. SpisuZa Zongra Dall, Ion. 62 mm 27 



2. Spisula cameronis Dall, Ion. 80 mm 26 



Plate 11 



Fig. 1. Thracia quenti7iensis Dall, Ion. 47 mm 28 



2. Cumingia densilineata Dall, Ion. 29 mm 15 



3. <SpisMZa /ongfa Dall, Ion. 62 mm 27 



4. Spisula cameronis Dall, Ion. 80 mm 26 



Plate 12 



Fig. 1-2. Sanguinolaria (Nuttallia) orcutti Dall, Ion. 130 mm 26 



Plate- 13 



Fig. 1. Terefcra/aZia Za/a Dall, brachial valve, lat. 61 mm 27 



2. Terebratalia lata Dall, pedicel valve, lat. 61 mm 27 



3. Cryptomya magna Dall, exterior of right valve, Ion. 35 mm 15 



4. Cryptomya magna Dall, interior of left valve, Ion. 35 mm 15 



Pl.\te 14 



Fig. 1. C/iri/sodowMS euZima^us Dall, adult shell, natural size 9 



