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And although engaged in the matter-of-fact occupation of searching for landshells, by turning over the stones, I could not help being struck with the beauty of the terraced walks and overhanging gardens; the beautiful belladonna lily here run wild in great abundance made a fine show.
The following notes will serve to record the more prominent facts bearing upon the Bathymetrical distribution of the Testacea collected on the northern coast of Australia, at Port Essington, and on the eastern coast from Cape York to Bass Strait, including the northern ports of Van Diemen's Land. An extensive collection of landshells was made at Madeira.
A heavy shower of rain, by bringing out the landshells, enabled me to pick up half-a-dozen species of Helix, Bulimus, and Pupa, at the foot of the hedgerows; I was anxious to procure some to ascertain whether any were non-European forms; one was even quite a new species.
Journal of Heredity, x, 176-181, April, 1919. Illus. Polar Bear Cacti. Journal of Heredity, Washington, D.C., VIII, 113-120, March, 1917. Illus. William H. Dall: Some Landshells Collected by Dr. Hiram Bingham in Peru. Proceedings of U.S. National Museum, XXXVIII, 177-182, 1911. Illus. Reports on Landshells Collected in Peru in 1911 by The Yale Expedition. Smithsonian Misc.
A short search among the damp stones and moss brought to light some small but interesting landshells, consisting of a pupiform Cyclostoma, a Carocolla, and five species of Helix.
This leads me to mention, that although the number of New Zealand landshells hitherto described scarcely exceeds a dozen, this does not imply any scarcity of such objects in the country, as an industrious collector from Sydney, who spent nine months on the northern and middle islands, obtained nearly a hundred species of terrestrial and fluviatile mollusca.
What he terms "oceanic islands" possess neither of these groups of animals, though they may have a luxuriant vegetation, and a fair number of birds, insects, and landshells; and we therefore conclude that they have originated in mid-ocean, and have never been connected with the nearest masses of land. St. Helena, Madeira, and New Zealand are examples of oceanic islands.
They proved on examination to be all known species, including several of the rarer forms, and not a few of those discovered by the Reverend Mr. Lowe. They were compared with Madeiran specimens by Mr. Vernon Wollaston. When the Rattlesnake touched at the Azores on the return voyage, a few landshells were collected at Fayal.
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