33/51 Under the bark I found two new land-shells (to be described in the Appendix) one of them a flattish Helix, in prodigious numbers--and this more than ever satisfied me that even the smallest islands and detached reefs of the north-east coast may have species peculiar to themselves, nor did I ever return from any one of the 37 upon which I landed without some acquisitions to the collection. Lizard Island is conspicuous from a distance, on account of its peak*--the central part of a mountainous ridge running across the island, and dividing it into two portions, of which the eastern is hilly and the western low, and intersected by small ridges of slight elevation. The island is about 2 1/2 miles in greatest diameter; the rock is a coarse grey granite, easily decomposable. A large grassy plain enters westward from the central ridge--a portion of this, half a mile from the beach, densely covered with coarse grass and reeds and scattered over with Pandanus trees, is usually a marsh. At present it is dry, with a few pools of fresh water, connected below with a mangrove swamp opening upon the beach by a narrow creek. |