There is another whale, found in the northern regions, called the razor-backed whale, from a prominent ridge on its back. It is found 100 feet long. As it is constantly moving along at the rate of five miles an hour, and is very powerful and active, frequently breaking away and carrying lines and gear with it, only the most daring whalers, in default of other prey, venture to attack it. There is a third sort of whale, called the broad-nosed whale, which is in many respects like a razor-back, but smaller—its length being from 50 to 80 feet.
The smallest sort is the beaked whale, which is about 25 feet long. Great numbers of this whale are often caught in the deep bays and firths of Shetland and Orkney.
I must now give an account of the spermaceti whale, (the Physeter macrocephalus), to capture which was the object of our voyage. It is found through every part of the South Pacific and Atlantic Oceans, and frequently makes its way to far northern latitudes. Still the southern seas must be considered its chief abode. In appearance and habits it is very different from the black whale. It is nearly as long as the razor-back, and exceeds it in bulk. In length it may be said to be from 80 to 85 feet, and from 30 to 35 in circumference. Looking at a sperm whale, the stem on its nose or snout appears very thick, and perfectly blunt, like a huge mallet about to strike. The head is a third part of the length of the body. At its junction with the body a hump rises, which we whalers call the bunch of the neck. Behind this is the thickest part of the body, which tapers off till there is another rise which we call the hump, in the shape of a pyramid—then commences the small, as we call it, or tail, with a ridge partly down it. The “small” gradually tapers till it contracts very much; and at the end the flukes, or what landsmen would call the tail, is joined on. In the immense head is contained the case, which is a cavity of almost triangular shape, and of great size, containing, when the whale is alive, that oily substance or fluid called spermaceti. I have frequently seen a ton taken from the case of one whale, which is fully ten large barrels. The use to the whale of the spermaceti in its head is, that, being much lighter than water, it can rise with great facility to the surface, and elevate its blow-hole above it. Its mouth is of great size, extending all the length of its head, or, as I have said, a third of its whole length. Its jaws narrow forward to almost a point—indeed, the lower one does so; and thus, as it swims along, like the stem of a ship, it serves to divide the water wedge, parting to make way for its huge body—the blunt snout being all the time like the lofty forecastle of an old-fashioned ship, clear of the waves high up above it. The inside of the monstrous cavity, the mouth, has nothing like the baleen or whale-bone, such as is found in the Greenland whale; but in the lower jaw it has a formidable row of large teeth of conical shape, forty-two in number. It has, however, none in the upper jaw; but instead, there are holes into which fit the points of those in the lower. These teeth are blunt, and are not used for biting or mastication, but merely to keep in the food which has entered its mouth. This food is chiefly the Squid or Sepia octopus, known also by the name of the cuttle-fish. In the South-Seas they are of enormous size, and, with their long feelers or arms growing out of their heads, are sufficiently strong to hold a man under the water and to kill him.
The sperm whale, however, swallows a variety of other fish. It catches them, not by swimming after them, but by opening wide its mouth and letting its prey swim into it! We will suppose ourselves looking down that vast mouth, as the lower jaw hangs perpendicularly to the belly; incapable it seems of moving. The interior of the throat is very large—capable of swallowing a man; the tongue is very small and delicate, and of a pure white colour; so are the teeth, which glisten brilliantly; and so is the whole interior. Fish are particularly attracted by their white appearance. They take it, perhaps, to be some marble hall erected for their accommodation; so in they swim, big and little squid equally beguiled! How the whale’s mouth must water when he feels a fine huge juicy octopus playing about his tongue! Up goes the lower jaw like a trap-door, and cephalapods, small and large, find their bright marble palace turned into a dark, black prison, from which there is no return; for, giving a turn with his tongue, he gulps them all down with a smack which must make old Ocean resound!
In another respect, the sperm is very different from the Greenland whale. It seems to know the power of its jaws, and will sometimes turn on its pursuers and attack them, though generally a timid animal, and disposed to seek safety by flight. The general opinion is, that sperm whales often fight with each other, as we have caught them with their lower jaws twisted in a variety of directions, and otherwise injured. The sperm whale’s eyes are very small, with movable eyelids, and are placed directly above the angle of the mouth, or a third part of its whole length distant from the snout. It is very quick-sighted, as it is also quick of hearing. Its ears—small round holes, which will not admit a little finger—are placed directly behind the eyes. The fins, which, as I have said, might be called paws, are close to the angle of the mouth. I have known a female whale support her young on them; and they are used to balance the body, to steer by, and, when hard pressed, to sink with greater rapidity below the surface. The skin of the whale is perfectly smooth, though old bulls get rough marks about them. As a rule, though black above and white below, as they advance in years, like human beings, they get grey on the head. Oftentimes an old grey-headed bull proves a dangerous enemy.
I have with greater minuteness than I intended given an account of the sperm whale. Its habits and mode of capture I will describe in the course of my narrative.