Again, the timid traveller here is delighted; he has been relieved of the great Alaskan curse of mosquitoes: he also walks the moors and hillsides secure in never finding a reptile of any sort whatever—no snakes, no lizards, no toads or frogs—nothing of the sort to be found on the Seal Islands. Fish are scarce in the vicinity of these islands. Only a few representatives of those families which can secrete themselves with rare cunning are safe in visiting the Pribylovs in summer. Naturally enough, the finny tribes avoid the seal-churned waters for at least one hundred miles around. Among a few specimens, however, which I collected, three or four species new to natural science were found, and have since been named by experts in the Smithsonian Institution. [Illustration: Aleutes catching Halibut, Akootan Pass, Bering Sea.] The presence of such great numbers of amphibian mammalia about the waters during five or six months of every year renders all fishing abortive, and unless expeditions are made seven or eight miles at least from the land, unless you desire to catch large halibut, it is a waste of time to cast your line over the gunwale of the boat. The natives capture “poltoos” or halibut, _Hippoglossus vulgaris_, within two or three miles of the reef-point on St. Paul and the south shore during July and August. After this season the weather is usually so stormy and cold that fishermen venture no more until the ensuing summer.[95] With regard to the _Mollusca_ of the Pribylov waters, the characteristic forms of _Toxoglossata_ and _Rhachiglossata_ peculiar to this north latitude are most abundant; of the _Cephalopoda_ I have seen only a species of squid, _sepia_, or _loligo_. The clustering whelks (_Buccinum_) literally conceal large areas of the boulders on the beaches here and there. They are in immense numbers, and are crushed under your foot at almost every step when you pass over long reaches of rocky shingle at low tide. A few of the _Neptunea_ are found, and the live and dead shells of _Limacina_ are in great abundance wherever the floating kelp-beds afford them shelter. On land a very large number of shells of the genera _Succinea_ and _Pupa_ abound all over the islands. On the bluffs of St. George, just over Garden Cove, I gathered a beautiful _Helix_. The little fresh-water lakes and ponds contain a great quantity of representatives of the characteristic genera _Planorbis_, _Melania_, _Limnea_, and that pretty little bivalve, the _Cyclas_.