PLATE XXXI.— Continued. 



PAOE 



Fig. 12. Loxonema multicostata, M. and W 378 



12 a. Magnified side view, showing the aperture. 

 12 b. Opposite side of same. 



12 c. Natural size. 



Fig. 13. Loxonema cerithiformis, M. and W 379 



13 a. Side view, showing the aperture, with lip somewhat broken. 

 13 6. View of opposite side. 



13 c. Enlarged diagram, showing the arching of the lines of growth, and the 



crenulations just below the suture. 



Fig. 14. Orthonema Salteri, M. and W 381 



14 a. Side view, enlarged, showing the aperture. 

 14 b. Opposite view. 



14 c. Natural size. 



Fig. 15. Soleniscus typicus, M. and W 384 



15 a. View, natural size, showing the aperture, canal, and the fold on the 



columella. 



15 b. Opposite side. 



Fig. 16. Beleerophon crasstjs, M. and W 385 



16 a. View showing the aperture, spiral band, etc. 



16 b. Lateral view, showing the small, nearly closed umbilicus, and wrin- 

 kles of growth. 



