The Description of a New World, Called the Blazing-World

After this, the Empress enquired, Whether they had observed, that all Animal Creatures within the Seas and other waters, had blood? They answered, That some had blood, more or less, but some had none. In Crea-fishes and Lobsters, said they, we perceive but little blood; but in Crabs, Oysters, Cockles, &c. none at all. Then the Empress asked them, in what part of their Bodies that little blood did reside? They answered, in a small vein, which in Lobsters went through the middle of their tails, but in Crea-fishes was found in their backs: as for other sorts of Fishes, some, said they, had onely blood about their Gills, and others in some other places of their Bodies; but they had not as yet observed any whose veins did spread all over their Bodies. The Empress wondring that there could be living Animals without Blood, to be better satisfied, desired the Worm-men to inform her, whether they had observed Blood in all sorts of Worms?