Tabular View of the Number of the Vertebræ in certain Cetacea.

I have placed Cetacea after Carnivora, and Edentata at the end.

A whale is a marine mammal of the order Cetacea.

Systemic viral disease has not previously been documented in Cetacea.

The latter is convoluted and constricted into a series of chambers that differ in different groups of Cetacea.

We show that all analyzed genes have been rendered nonfunctional in Cetacea species (toothed and baleen whales).

Achron sat upon a throne of Cetacea bones, sunbleached white and held together with the planet's native red clay.

The Cetacea (whales, porpoises, etc.)

The Pterodactyles, which preceded the class of birds, and the Ichthyosauri, which preceded the Cetacea, are other examples of such prophetic types.

The order Cetacea consists of three families, baleen whales, sperm whales, dolphins, and it's in this last group that narwhales are placed.

From this I finally concluded that it belonged to the branch Vertebrata, class Mammalia, subclass Monodelphia, group Pisciforma, order Cetacea, family .

The conserved mutational pattern found in most analyzed genes, indicates that pseudogenization events took place prior to the diversification of modern Cetacea lineages.

Fossil Cetacea exist, and they seem to have been of both kinds, but, no doubt, were generically and specifically distinct from the recent.

Wallace.-ProfessorHuxley.-Objectionsto sudden changes.-Labyrinthodont.-Potto.-Cetacea.-As toorigin of bird's wing.-Tendrils of climbing plants.-Animalsonce supposed to be connecting links.-Early specialization of structure.-Macrauchenia.-Glyptodon.-Sabre-toothedtiger.-Conclusion.

There is a remarkable want of symmetry in the crania of some of the Cetacea; but most remarkable is the cranium of the Narwhal.

The legs, to be sure, and the feet are gone, the battle of life having left private Cetacea in the condition of a Chelsea pensioner.