PLATE II. 



(The specimens are figured natural size except when otherwise stated.) 



Figs. 1,2. Fa/t;a/a Ac//co/rfea Dall, magnified four diameters. The umbilicus 

 is partly hidden by a calcareous deposit ; p. 123. 



3. Lymncea peter si Dall ; p. 66. 



4, 5. Lymncea anticostiana Dall ; p. 79. 



6. Lymncea ? ferpolita Dall ; p. 78. 



7. 9. Lymncea atka'ensis Dall ; p. 66. 



8. Lymncea ? perpolita Dall, magnified two diameters ; p. 78. 

 10, 11. Planorbula cirisiyi Dall, magnified two diameters ; p. 99. 



(156) 



