As to the molluscs, they consisted of some I had already observed—turritellas, olive porphyras, with regular lines intercrossed, with red spots standing out plainly against the flesh; odd pteroceras, like petrified scorpions; translucid hyaleas, argonauts, cuttle-fish (excellent eating), and certain species of calmars that naturalists of antiquity have classed amongst the flying-fish, and that serve principally for bait for cod-fishing. I had now an opportunity of studying several species of fish on these shores. Amongst the cartilaginous ones, petromyzons-pricka, a sort of eel, fifteen inches long, with a greenish head, violet fins, grey-blue back, brown belly, silvered and sown with bright spots, the pupil of the eye encircled with gold—a curious animal, that the current of the Amazon had drawn to the sea, for they inhabit fresh waters—tuberculated streaks, with pointed snouts, and a long loose tail, armed with a long jagged sting; little sharks, a yard long, grey and whitish skin, and several rows of teeth, bent back, that are generally known by the name of pantouffles; vespertilios, a kind of red isosceles triangle, half a yard long, to which pectorals are attached by fleshy prolongations that make them look like bats, but that their horny appendage, situated near the nostrils, has given them the name of sea-unicorns; lastly, some species of balistae, the curassavian, whose spots were of a brilliant gold colour, and the capriscus of clear violet, and with varying shades like a pigeon’s throat.