Diptera (dĭp´tē-rā).—Two-winged flies; an order of insects.

Echinodermata (e-kī´nô-dẽr´mȧ-tȧ).—Applied to the sea-urchin, a subdivision of animals.

Edentata (ē´dĕn-tā´tȧ).—Those animals having imperfect dental apparatus. Their digits, too, are generally sunk in large and crooked claws.

Elasmobranchii (ē-lăs´mō-brănk-ē).—The sharks and rays.

Fauna (faw´nä).—The native animals of a certain locality.

Flagellum (flâ-jēl´lŭm).—A whip. The appendage of some Protozoa.

Foraminifera (fô-răm´ĭ-nĭf´e-rȧ).—Animals with perforated shells.

Ganoid (gā´noid or găn´oid).—Applied to a certain class of fish.

Gasteropoda (găs´te-rŏp´ô-dȧ).—A class of Molluscs. Some of them form shells, while others are destitute of them,—as the slug, snail, etc.

Grallatores (grăl´lȧ-tō´rēz).—Wading-birds.