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All of these 19 Reptiles were included in my collection, with the exception of Corucia zebrata, which, however, came under my observation. I will now proceed to refer more particularly to the Reptile-fauna of this region.

Crocodiles.—The species of Crocodile (Crocodilus porosus, Schneid), which is so common in the Solomon Group, ranges from India and South China through the Malay Archipelago and Papuan Islands to North Australia. In these islands crocodiles appear to frequent in greatest numbers the swamps and sandy shores of uninhabited coral islands, such as those of the Three Sisters, and the coasts of the larger islands in the vicinity of the mouths of the streams and rivers. I frequently surprised them basking on the sand under the shade of a tree. On one occasion I was standing on the spreading roots of a tree that were exposed on the beach, when one of these reptiles darted out from under my feet and dived into the sea. Of the marks that they make on the sand when lying at rest, an oblong shallow impression corresponding to the head, and a curved well-defined grove caused by the tail are alone specially recognisable. When they are not alarmed and move leisurely along, they leave a double row of footprints on the sand, with a narrow median furrow produced by the weight of the tail; but when they have been disturbed and make a rush to escape, they raise their tail and leave only the tracks of their feet on the sand. These crocodiles are equally at home in salt and fresh water. I have frequently passed them in my Rob Roy canoe when they have been floating as though asleep at the surface of the sea; and it was always in the sea that they found a refuge when my little craft intruded itself within their haunts. They came under my notice in the fresh-water lakes of Santa Anna and Stirling Island, and in the lower courses of the streams in several localities. They are apparently in no uncongenial conditions in the salt-water lagoon of Eddystone Island, although its waters receive the hot sulphureous vapours of submerged fumaroles.

These crocodiles do not apparently attain a greater length than 12 or 13 feet. Mr. Sproul shot one at Santa Anna which measured 91⁄2 feet. A female that I shot in the Shortland Islands, measured 11 feet. One of the seamen of the “Lark,” named Prior, obtained from the natives the skull of a rather larger specimen. Out of half-a-dozen individuals seen on the Three Sisters, not one measured more than 7 or 8 feet.[440] Mr. Bateman, a trader resident at Ugi, told me that at Wano on the St. Christoval coast he saw a very large crocodile which, from his description, appears to have been twice as long as any that I saw. It was, however, dusk at the time; and in connection with this circumstance I should add that I have found actual measurement to reduce the apparent length of a crocodile from 14 to 11 feet.

[440] A skull given to me by Mr. Nisbet, the government-agent of the “Redcoat,” at Ugi, was 12 inches long. It was obtained from the natives of Guadalcanar.