------*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.------

Further in the chapter, as one random example, here's part of his description of the narwhal. Same as above, look at the richness that he packs into just a few sentences:

-----What precise purpose this ivory horn or lance answers, it would be hard to say. It does not seem to be used like the blade of the sword-fish and bill-fish; though some sailors tell me that the Narwhale employs it for a rake in turning over the bottom of the sea for food. Charley Coffin said it was used for an ice-piercer; for the Narwhale, rising to the surface of the Polar Sea, and finding it sheeted with ice, thrusts his horn up, and so breaks through. But you cannot prove either of these surmises to be correct. My own opinion is, that however this one-sided horn may really be used by the Narwhale—however that may be—it would certainly be very convenient to him for a folder in reading pamphlets.-----

Who's Charley Coffin? He pops up earlier in the chapter as Ishmael defends his contention that the whale is a fish:

-----The grounds upon which Linnæus would fain have banished the whales from the waters, he states as follows: “On account of their warm bilocular heart, their lungs, their movable eyelids, their hollow ears, penem intrantem feminam mammis lactantem,” and finally, “ex lege naturæ jure meritoque.” I submitted all this to my friends Simeon Macey and Charley Coffin, of Nantucket, both messmates of mine in a certain voyage, and they united in the opinion that the reasons set forth were altogether insufficient. Charley profanely hinted they were humbug.-----

(http://www.autoadmit.com/thread.php?thread_id=5643827&forum_id=2#48408859)

ALTERNATIVE: listen to the Frank Muller audio version

(http://www.autoadmit.com/thread.php?thread_id=5643827&forum_id=2#48408869)