Definitions

Having two branches or rami (exopodite and endopodite). [Holdich and Jones, 1983]
Having two branches, a typical condition for most primitive crustacean appendages. [Wilson, 1989]
Having two branches, as a pleopod. [Butler, T. H.]
Having two branches, as in the basic appendage (Fig. 2). [Warner, 1977]
Having two branches. Crustacean appendage with two rami; also antennule or antenna with two flagellar elements. [McLaughlin, 1980]
Two-branched; crustacean limb in which basis bears both exopod and endopod. [Moore and McCormick, 1969]
(Taxon-specific: Order Isopoda) Composed of two rami or branches. [Kensley and Schotte, 1989]
(Taxon-specific: Order Isopoda) Composed of two rami or branches. [Wetzer et al. 1997]
(Taxon-specific: Subclass Copepoda) Two-branched, used of limbs possessing both endopod and exopod. [Boxshall and Halsey, 2004]