PLATE XIV. 
Loxonema delphicola. 
Page 47. 
Fig. 1. A large compressed specimen, marked by fine strise, and showing a distinct sutural band. Hamilton 
shales, near Bellona, N. Y. 
Fig. 2. A specimen from the same locality having the last volution greatly expanded, with fine markings, 
while the upper part is more coarsely marked. .The sutural band is unusually wide. The 
apparent distortion is mainly a condition of growth, and not accidental. 
It may be questionable whether the existence of a sutural band is of specific importance, and 
the degree of development of this feature in different individuals suggests a doubt as to the 
reliance of this character for specific distinction between L.Hamiltonice and L. delphicola. 
Loxonema Bellona. 
Page 46. 
Fig. 3. A specimen which is mostly denuded of the shell, but showing the form of the volutions. A small 
fragment of shell on the body-volution exhibits the surface-marking as indicated in the figure. 
Figs. 4, 5. Two fragments showing the form of volution and surface-markings. 
Loxonema terebra. 
Page 48. 
Figs. 6, 7. Gutta-percha casts in the natural mold, giving the form of the shell and the surface-markings. 
Loxonema sttliola. 
Page 48. 
Figs. 8, 9. Gutta-percha casts, showing the long subulate spire. 
Callonema bellatula. 
Page 51. 
Fig. 10. A small specimen with angular volutions. 
Figs. 11, 12. The opposite sides of a medium-sized specimen, having the angular form and showing the 
umbilicus. ■ 
Fig. 13. A larger specimen with rounded volutions. 
Fig. 14. A still larger specimen, showing the angularity of the volutions somewhat modified. 
Fig. 15. A large rotund specimen referred to this species. From the Upper Helderberg limestone near 
Louisville, Kentucky ; the preceding specimens from Dublin, Ohio. 
Callonema imitator. 
Page 53. 
Fig. 16. The upper surface of the shell, showing the form of the volutions and the surface-marking. 
Fig. 17. Lateral view of a specimen showing the elevation of the spire and form of volutions. 
