Exopodite

Definitions

  • Webster's Revised Unabridged Dictionary
    • n Exopodite (Zoöl) The external branch of the appendages of Crustacea.
    • ***
Century Dictionary and Cyclopedia
    • n exopodite In Crustacea, the outer one of two main branches into which the typical limb or appendage of any somite is divided or divisible: opposed to endopodite. Compare epipodite. Like the endopodite, the exopodite is very variously modified in different regions of the body of the same animal. Thus, in the tail-fin, as of the crawfish, it forms the outer part of the broad flat swimmeret on each side of the tail. In abdominal and thoracic somites it may be very small, or entirely suppressed, especially when the endopodite is highly developed as an ambulatory leg. (See cut under endopodite.) In maxillipedary segments it forms a variously modified appendage of those parts (see cut under Cyclops); in an antennary segment it may be a mere scale at the base of the very long and many-jointed endopodite (antenna or feeler).
    • ***

Etymology

Webster's Revised Unabridged Dictionary
Exo-, + Gr. , foot

Usage

In literature:

Protopodite, endopodite, exopodite, and epipodite were considered to be the morphological units of the crustacean limb.
"Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6" by Various
In the young Lobster, when just hatched from the egg, however, each of the legs has a large exopodite like that of the third maxilliped.
"The Life of Crustacea" by William Thomas Calman
***