HENSHAW : SEMI-KOSIL SHELLS IN HAMAKUA DISTRICT, HAWAII. UT, 



As will be noticed the greater number of forms from the deposits are of 

 species still existing, either on Hawaii or the others islands. The list con- 

 tains representatives of most of the genera of Hawaiian land shells, and the 

 number of genera as well as species sufficiently attest the former wonderful 

 richness in molluscan life of this particular region. 



1. Achatinella physa, Newc. 



Abounds in the deposits of Rlana. Mr. Ancey is inclined to view 

 this shell as a new variety because of its size, an idea at first shared 

 by the author who now, however, adopts Mr. Baldwin's opinion of 

 its specific identity with jiliysa. 



2. Achatinella horneri, Baldw. [Henshaw]. 



Two or three individuals only from Mana deposits which art, several 

 hundred feet above the present usual range of the species. 



3. *Amastra senilis, Baldw. [Baldwin]. Very abundant at Palihoukapapa. 



4. * ,, fossilis, Baldw [Baldwin]. Common at Palihoukapapa. 



5. ,, flavescens, Newc. [Henshaw]. Rare in the Mana deposits 

 but abundant enough living at an elevation of 2,000 feet or so. 



6. *Amastra conica, Baldw. [Baldwin]. 



7. ■'' „ sinistrorsa, Baldw. [Baldwin]. 



8. *Pseudohyalinia meniscus, Anc. 



9. Vitrea hawaiiensis, Anc. 



10. *Punctum horncii, Anc. 



11. Endodonta laminata, Pse. 



12. ,, nuda, Anc. 



13. * ,, henshawi Anc. 



14. * ,, hystricella, Pfr. var. paucilamellata, Anc. 



15. ,, lanaiensis, .S_\kt.'S. 



16. Nesopupa acanthinula, Anc. 

 17- ,- sp. 



18. ,, baldwini, Anc. var. centralis, Anc. 



19. Lyropupa perlonga, Pse. 



20. * ,, mirabilis, Anc var. hawaiiensis, Anc 



21. * ,, magdalenae, Anc. var. prisca, Anc. 



22. Leptachatina henshawi, Sykes. 



23. ,, konaensis, Sykes. 

 24 ,, arborea, Baldw. 



25. ,, simplex, Pse. 



26. ,, SJ). 



27. ,, imitatrix, Sykes. 



28. „ sp. 



29. Tornatellina newcombi, Pfr. ? 



30. ,, cincta, Anc. 



31. ,, procerula, Anc. 



32. ,, macromphala, Anc. 



