92 THE NAUTILUS. 
Punchbowl. These shells are frequent in occurrence and now 
extinct. Dr. C. H. Hitchcock gives a very good account of the 
geological occurrence or position of these shells on Diamond 
Head and Punchbowl] (8). 
We have also collected Amastra fossils from Kahuku, Moku- 
leia and Kwaihapai. 
The cause of recent disappearance is the destruction of the 
forest, collecting by people, and ravages of cattle and goats. 
An example of this is found on Olomana where Dr. Gulick col- 
lected in or about 1850. In the fifties this peak was covered 
with forest which has disappeared. Achatinella phxozona was 
found on Olomana where it is not now found owing to the dis- 
appearance of the forest. 
Papers referred to. 
1. Cooke, C. Montague.—Distribution and Variation of Acha- 
tinella multizonata from Nuuanu Valley. Occasional Papers, 
Bernice Pauahi Bishop Museum, Vol. II, No. 1-5, pp. 65-76. 
2. Thwing, E. W.—Occasional Papers of the Bernice Pauahi 
Bishop Museum of Polynesian Ethnology and Natural History, 
Vol. III, No. 1, 1907, pp. 18. Original Descriptions of Acha- 
tinella. 
3. Hitchcock, C. H., and Dall, W. H.—Geology of Oahu, 
Bulletin of the Geological Society of America, Vol. II, pp. 15 
to 60, February, 1900. Notes of Fossil Land Shells on pp. 
54-55. 
A NEW CYPRAEA FROM HAWAII. 
BY J. M. OSTERGAARD.’ 
CYPRAEA PACIFICA, n. sp. Plate 2, lower five figs. 
Whitish to cream color, richly ornamented with chestnut- 
brown spots, evenly sprinkled over the dorsal surface; base, 
aperture and teeth, white; resembles C. cernica Sowb. in form, 
having in common with that species elevated and pitted mar- 
} Contribution from the Gulick Nat, Hist. Club. 
