Herman Melville: Moby Dick

CHAPTER 32: Cetology. (continued)

Next: how shall we define the whale, by his obvious externals, so as conspicuously to label him for all time to come? To be short, then, a whale is A SPOUTING FISH WITH A HORIZONTAL TAIL. There you have him. However contracted, that definition is the result of expanded meditation. A walrus spouts much like a whale, but the walrus is not a fish, because he is amphibious. But the last term of the definition is still more cogent, as coupled with the first. Almost any one must have noticed that all the fish familiar to landsmen have not a flat, but a vertical, or up-and-down tail. Whereas, among spouting fish the tail, though it may be similarly shaped, invariably assumes a horizontal position.

By the above definition of what a whale is, I do by no means exclude from the leviathanic brotherhood any sea creature hitherto identified with the whale by the best informed Nantucketers; nor, on the other hand, link with it any fish hitherto authoritatively regarded as alien.* Hence, all the smaller, spouting, and horizontal tailed fish must be included in this ground-plan of Cetology. Now, then, come the grand divisions of the entire whale host.

*I am aware that down to the present time, the fish styled Lamatins and Dugongs (Pig-fish and Sow-fish of the Coffins of Nantucket) are included by many naturalists among the whales. But as these pig-fish are a noisy, contemptible set, mostly lurking in the mouths of rivers, and feeding on wet hay, and especially as they do not spout, I deny their credentials as whales; and have presented them with their passports to quit the Kingdom of Cetology.

First: According to magnitude I divide the whales into three primary BOOKS (subdivisible into CHAPTERS), and these shall comprehend them all, both small and large.

I. THE FOLIO WHALE; II. the OCTAVO WHALE; III. the DUODECIMO WHALE.

As the type of the FOLIO I present the SPERM WHALE; of the OCTAVO, the GRAMPUS; of the DUODECIMO, the PORPOISE.

FOLIOS. Among these I here include the following chapters:--I. The SPERM WHALE; II. the RIGHT WHALE; III. the FIN-BACK WHALE; IV. the HUMP-BACKED WHALE; V. the RAZOR-BACK WHALE; VI. the SULPHUR-BOTTOM WHALE.