[Page 248]: General Appearance.—Shell conical, or almost
In the original book: General Appearance—Shell conical, or almost

[Page 250]: Southern Patagonia, Guayaquil, West Colombia;
In the original book: Southern Patagonia, Guyaquil, West Colombia;

[Page 255]. Did not apply Darwin’s errata because desired wording is not obvious.
Darwin’s errata: six lines from the top, Bal. crenatus, I have now seen a single Red Crag specimen .5 of inch in basal diameter.

[Page 263]: their sutural edges are rather thick and
In the original book: their suteral edges are rather thick and

[Page 264]: vessels are thickly encrusted with this species,
In the original book: vessels are thickly incrusted with this species,

[Page 264]: enormous range and capability of resisting
In the original book: enormous range and cabability of resisting

[Page 265]: sent me by Krantz from the miocene formation
In the original book: sent me by Krantz from the miocence formation

[Page 271]: Range, Habitats, &c.—This species is
In the original book: Range, Habits, &c.—This species is

[Page 278]. Applied Darwin’s errata. Added fossil locality:
Red Crag (Sutton) Mus. S. Wood.

[Page 279]: brought from Barbados, in the West Indies,
In the original book: brought from Barbadoes, in the West Indies,