WEST AMERICAN PYRAMIDELLID MOLLUSKS. 243 



Page. 



Fig. 7. Odostomia (Chrysallida) proxima de Folin, type 2.5 mm 157 



Copy of de Folin's figure. 



8. Odostomia {Chrysallida) hipolitensis, new species, type 3.5 mm 155 



9. Odostomia (Chrysallida) lapazana, new species, type 2.8 mm 156 



9a. Nucleus of same, lateral view much enlarged. 



10. Odostomia (Chrysallida) pulcia, new species, type 2.2 mm 160 



10a. Nucleus of same, lateral view much enlarged. 



11. Odostomia (Chrysallida) vicola, new species, type 2.5 mm 153 



Plate 17. 



Fig. 1. Odostomia (Chrysallida) deceptrix, new species, type 2.8 mm 169 



2. Odostomia ( Chrysallida) fasciata Carpenter, type 2.1 mm 165 



Copy of a camera lucida sketch by Dr. Carpenter. 



3. Odostomia (Chrysallida) oregonensis Dall and Bartsch, type 3.3 mm 162 



3a. Nucleus of same, lateral view much enlarged. 



4. Odostomia (Chrysallida) vincta, new species, type 2.7 mm 165 



5. Odostomia (Chrysallida) defolinia, new name, type 3.6 mm 161 



Copy of de Folin's figure. 



6. Odostomia (Chrysallida) montereyensis Dall and Bartsch, type 3 mm 159 



7. Odostomia (Chrysallida) pulcherrima, new species, type 5 mm 164 



8. Odostoviia (Chrysallida) helga, new species, type 4.2 mm 166 



8a. Nucleus of same, lateral view much enlarged. 



9. Odostomia (Chrysallida) benthina, new name, type 4.8 mm 163 



9a. Nucleus of same, lateral view much enlarged. 



Copy of a camera lucida sketch by Dr. Carpenter. 



Plate 18. 



Fig. 1. Odostomia ( Chrysallida) sanctorum, new species, type 2.5 mm 167 



2. Odostomia (Chrysallida) promeces, new species, type 2.5 mm 164 



2a. Nucleus of same, lateral view much enlarged. 



3. Odostomia (Chrysallida) sapia, new species, type 1.8 mm 167 



3a. Nucleus of same, lateral view much enlarged. 



4. Odostomia (Chrysallida) rotundata Carpenter, type 2.3 mm 168 



Copy of a camera lucida sketch by Dr. Carpenter. 



5. Odostomia (Pyrgulina) marginata C. B. Adams, type 2.8 mm 169 



Copy of a camera lucida sketch by Dr. Carpenter. 

 5a. Nucleus of same, lateral view much enlarged. 



6. Odostomia (Chrysallida) talama, new species, type 3.4 mm 143 



7. Odostomia ( Chrysallida) virginalis, new name, tjT)e 3 mm 160 



7a. Nucleus of same, lateral view much enlarged. 



8. Odostomia (Haldra) photis Carpenter, type 1.2 mm 171 



Copy of a camera lucida sketch by Dr. Carpenter. 



9. Odostomia (Ividella) quinquecincta Carpenter, type 1.8 mm 174 



Copy of a camera lucida sketch by Dr. Carpenter. 



10. Odostomia (Ividella) navisa delmontensis Dall and Bartsch, type 3.2 mm . 1 74 

 10a. Nucleus of same, lateral view much enlarged. 



11. Odostomia (Ividella) navisa Dall and Bartsch, type 2.7 mm 173 



11a. Nucleus of same, lateral view much enlarged. 



12. Odostomia (Ividella) orariana, new name, type 2 mm 175 



