Having, or consisting of, two branches.
Having two branches, a typical condition for most primitive crustacean appendages.
a type of appendage characteristic of members of the arthropod group, Crustacea. The appendage branches from a basal portion, the protopodite, into two distal branches, the endopodite and the exopodite. Each of these branches might be made up of multiple segments. There are many variations on these appendages and their functions. Compare to uniramous.
Arthropod appendages that are biramous have two branches, an outer branch and an inner branch. These branches may have separate functions; in crustaceans, for instance, the inner branch of a leg is used for walking, while the outer branch may be paddle-shaped or feathery and often functions as a gill. Contrast with uniramous.
An appendage composed of two rami or branches.
bi-RAYM-us A double-branched arthropod appendage. 522