REFERENCE TO PLATES, VOL. XXI. 381 



FIGURE PAGE 



PLATE 36. Amastra of Oahu, Molokai and Maui. 



I, 2, 3. Pterodiscus heliciformis Anc. Oahu. Baldwin 



coll 127 



4, 5. Amastra petricola Newc. Molokai. 57734 A. N. 



S. P 253 



6, 7. Amastra umbilicata Pfr. Molokai. A. N. S. P. 251 



8. Amastra morticina Pils. Kanaio. Baldwin coll. . . 280 



9. Amastra morticina Pils. Kahului. Baldwin coll. . . 280 



10. Amastra obesa Newc. Maui. A. N. S. P 281 



11, 12. Amastra agglutinans Newc. Maui. A. N. S. P. 283 



PLATE 37. Amastra of Oahu and Molokai. 



1. Amastra tenuispira Bald. Cotype. A. N. S. P 212 



2. Amastra frosti Anc. Proc. Malac. Soc., iii 211 



3. Amastra frosti Anc. Cooke coll. no. 1751 211 



4. Amastra micans (frosti unicolor Anc.). Proc. Malac. 



Soc., iii 210 



5. 6, 7. Amastra micans Pfr. Cooke coll 210 



8, 9. Amastra porphyrostoma Pse. Kahana. Coll. A. 



N. S. P 226 



10, 11, 12. Amastra borcherdingi H. & P. Molokai. 2097 



Cooke coll 



13. Amastra porphyrostoma Pse. From photo of type. 



Pease coll 226 



14-16. Amastra umbrosa Bald. Cotypes. 65714 A. N. 



S. P 263 



17. Amastra pullata Bald. Var. Cooke coll 262 



18-20. Amastra seminuda Bald. Cotypes. Baldwin coll. 264 

 21. Amastra pullata Bald. Var. Cooke coll 263 



PLATE 38. Amastra of Oahu. 



1, 2. Amastra thaanumi Pils. Cotypes. Bishop Mus. 177 



3. Amastra porcus Pils. Type. Bishop Mus 207 



4, 5. Amastra cookei Pils. Type. Bishop Mus 182 



6. 9, 10. Amastra sola Pils. Type. Bishop Mus 158 



7. Amastra emulator Pils. Type. Bishop Mus 190 



8. Amastra gulickiana Pils. Type. Bishop Mus 168 



9. 10. Amastra sola Pils. Type. Bishop Mus 158 



II. Amastra hartmani Nc. Hartm., from photo of type. . 160 



12. Amastra textilis kaipaupauensis Pils. Type. Bishop 



Mus 168 



13. Amastra spaldingi Cooke. Neanic stage. Bishop Mus. 169 



14. Amastra conicospira Sm. Type. No. 87 Boston Soc. 



(= intermedia) 223 



