EXPLANATION OF PLATES. 



NOTE. Unless otherwise stated, the figures represent specimens in 

 the collection of the Academy. All original figures of shells were 

 drawn by Miss Helen Winchester ; those of the soft anatomy by 

 Pilsbry. 



FIGURE. PAGE. 



PLATE 1. Laminella, Amastra. 

 1, 2. Laminella gravida Fer. Typical. Tantalus Bowl. 



108036-7 53 



3, 4. Laminella g. aurantium P. & C. Above Waiahole. 



109904 54 



5. Laminella g. aurantinm P. & C. Kaliuwaa. 109907. 54 



6. Laminella g. kalihiensis P. & C. Kalihi. 109905 . . 54 

 7, 8. Laminella g. waianaensis P. & C. Haleauau. 



109903 54 



9. Amastra farcimen Pfr. Type. British Mus 46 



10-15. Laminella alexandri Newe. Mt. Kukui. 109906. 55 



17. Amastra melanosis Nc. Paratype, Newcomb coll . . 49 



18. Amastra m. kauensis P. & C. Waiohinu, Kau. 108147 50 



PLATE 2. Amastra. 



1-4. Amastra umbilicata arenarum P. & C. Moomomi. 23 



5-8. Amastra umbilicata Pfr. Half-mile east of Kahuku 22 



9, 10. Amastra ultima P. & C. Kahuku, Kau 25 



11, 12. Amastra fragilis P. & C. Molokai. 108244, 



108629 24 



13. Amastra antiqua kawaihapaiensis P. & C. Oahu. . 22 



14, 15. Amastra eos P. & C. Keawaawa, Oahu 26 



16. Amastra transversalis bryani P. & C. Punchbowl. . 27 



17. Amastra reticulata vespertina P. & C. Kawaihapai. 30 



18. Amastra elongata Nc. Newcomb collection 47 



19,20. Amastra hartmani (=similaris). Newcomb coll., 



Cornell Univ. Mus. 29987 20 



PLATE 3. Amastra. 



1-3. Amastra mucronata Nc. Mapulehu. 108229 .... 34 



4-7. Amastra kalamaulensis P. & C. 108227 37 



8-10. Amastra kaunakakaiensis P. & C. 108628 36 



(274) 



