WEST AMERICAN PYRAMIDELLID MOLLUSKS. 247 



Plate 30. 



rage. 



Fig. 1. Odostomia {Odostomia) dinella, new species, type 2.2 mm 232 



2. Odostomia {Scaknostoma) rangii De Folin, type 2.7 mm 230 



Copy of de Folin 's figure. 



3. Odostomia {Odostomia) coronadoensis, new species, type 1.7 mm 233 



4. Odostomia (Odostomia) farella, new species, type 2.5 mm 232 



5. Odostomia {Scaknostoma) dotella, new species, type 2.3 mm 230 



6. Odostomia {Heida) panamensis Clessin, type 3.1 mm 231 



7. Odostomia {Amaura) moratora, new species, type 9 mm 22o 



The fine spiral striations have been omitted in this figure. 



8. Odostomia (Odostomia) mammillata Carpenter, type 1.1 mm 233 



Copy of a camera lucida sketch by Dr. Carpenter. 



