214 BULLETIN 112, UNITED STATES NATIONAL MUSEUM. 
Plate 6. 
Page. 
Figure 1. Tritonalia painei Dali, alt. 15 ram 107 
2. Tachyrhychus lacteolus Carpenter, alt. 10.5 mm 152 
3. Moniliopsis fancherae Dali, alt. 10.5 mm 70 
4. Philbertia crystallina Gabb, alt. 7.7 mm 79 
5. Tritonalia barbarensis Gabb,* alt. 17 mm 108 
6. Neptunea elegantula Dali, alt. 31.5 mm 109 
7. Neptunea orpheus Gould, from type, alt. 22 mm 110 
8. Ptychatr actus oceidentalis Stearns, from type, alt. 14 mm 87 
« 9. Amphissa Columbiana altior Dali, alt. 29 mm 105 
10. Alia hypodra Dali, alt. 6.5 mm ^ 104 
■ 11. Epitonium lowei Dali, alt. 7 mm 114 
12. Epitonium saioinae Dali, alt. 10.5 mm 115 
Figures 2 and 6 drawn by Miss Evelyn Mitchell, the others by the late 
Doctor J. C. McConnell. 
Plate 7. 
Figure 1. Pyrulofusus harpa Morch, alt. 140 mm 89 
Plate 8. 
Figure 1. Searlesia dira Reeve, alt. 47 mm 98 
2. Aulacofusus calathus Dali, alt. 27 mm 94 
3. Aulacofusus georgianus Dali, alt. 40 mm 95 
4. Aulacofusus herendeeni Dali, alt. 70 mm 94 
5. Neptunea peregrina Dali, alt. 21.5 mm 110 
6. Liomesus nassula Dali, alt. 43 mm : 91 
7. Latisipho Jialli, Dali, alt. 45 mm 96 
8. Neptunea avalonensis T>3A\, alt. 16.5 mm 110 
9. Volutopsius stejnegeri Dali, alt. 60 mm ^ 90 
10. Buecinum glaciate parallelum Dali, alt. 70 mm 98 
11. Volutopsius trophonius Dali, alt. 67 mm 90 
All these figures drawn by the late Doctor J. C. McConnell. 
Plate 9. 
Figure 1.' Volutopsius simplex Dali, alt. 101 mm 90 
2. Volutopsius stefanssoni Dali, 110 mm . 89 
3. Beringius marshalU Dali, alt. 100 mm 91 
4. Aesopus goforthi Dali, alt. 12.6 mm 105 
5. Ancistrolepis trochoideus Dali, alt. 18.5 mm. (Japan, extra- 
limital?). 
6. Chrysodomus variciferus Dali, diam. 118 mm 97 
7. Chrysodomus variciferus Dali, alt. 186 mm 97 
8. Chrysodomus onchodes Dali, alt. 103 mm 96 
All these figures drawn by Miss Evelyn Mitchell. 
Plate 10. 
Figure 1. Volutopsius filosus Dali, alt. 64 mm 90 
2. Buecinum cnismatum Dali, alt. 38 mm 99 
3. Buceinum diplodetum Dali, alt. 38 mm 99 
4. Buecinum simulatum Dali, alt. 38 mm 100 
5. Aulacofusus calamaeus Dali, alt. 57 mm 94 
6. Neptunea beringi Dali, alt. 40 mm : 109 
7. Neptunea kamchatkana Dali, alt. 24 mm 111 
8. Aulacofusus esychus Dali, alt. 52 mm 94 
