protopod

Peduncle of an appendage; in unmodified form, consisting of one coxal and one basal article. (Syn. protopodite) [Williams, 1984].

Proximal portion of limb, consisting of precoxa, coxa, and basis, fused together in some forms; its distal edge generally bearing endopod(ite) and exopod(ite). (Syn. coxite, sympod(ite)) [Moore and McCormick, 1969].

The basal article of a crustacean appendage. (Syn. sympod) [Brusca and Brusca, 2002].

The basal segment of the pleopods and the uropods. It consists of the fused coxa and basis of the crustacean limb [Wilson, 1989].

(Order Cladocera):

Poorly delimited proximal part of trunk appendage; bears on or two distinguishable endites along inner margin and epipod on outer margin, as well as distal endopod and exopod. (Syn. protopodite) [Stachowitsch, 1992].

(Order Notostraca):

Proximal part of thoracic appendage (thoracopod) or abdominal appendage. Bears series of five endites on inner margin, epipod on outer margin, distal endopod (sixth endite) and exopod (flabellum). (Syn. protopodite) [Stachowitsch, 1992].

(Order Diplostraca):

Proximal, poorly delimited part of trunk appendage; bears series of endites along inner margin, epipod on outer margin, as well as distal endopod (= sixth endite) and exopod (flabellum). Also applied to proximal part of antenna. (Syn. protopodite) [Stachowitsch, 1992].

(Order Anostraca):

Proximal part of each thoracic appendage (thoracopod). Unsegmented, bearing five endites medially, one or more preepipods and epipod laterally, and distal endopod and exopod. (Syn. protopodite) [Stachowitsch, 1992].

(Class Cephalocarida):

Proximal part of appendage. Generally specified only when referring to biramous appendage (e.g., antennae, maxillules, maxilae, thoracopods). Consists basically of two segments (coxa, basis) and may bear endites and epipod (pseudepipod). (Syn. protopodite) [Stachowitsch, 1992].

(Order Cumacea):

Term occasionally applied to proximal part of certain appendages (e.g., maxillules, maxillae). (See also peduncle). (Syn. protopodite) [Stachowitsch, 1992].

(Order Tanaidacea):

Proximal part of certain appendages. Typically specified only when referring to maxillules and maxillae, yet basically applicable to proximal section (coxa, basis) of other appendages. (Syn. protopodite) See: peduncle [Stachowitsch, 1992].

(Order Decapoda):

Proximal part of biramous appendage. Typically two-segmented (coxa, basis) and bearing variously developed inner (endopod) and outer (exopod) branches. (Syn. protopodite, sympod, sympodite) [Stachowitsch, 1992].

(Order Amphipoda):

Proximal part of appendage, basically comprising coxa and basis. Only rarely applied in amphipods (e.g., maxillules) due to modification of coxae as coxal plates [Stachowitsch, 1992].

(Order Mysida):

Proximal part of appendage. Consists basically of two segments (coxa, basis). May bear lateral lobes (endites, exites) and distal branches (endopod, exopod). (Syn. protopodite) [Stachowitsch, 1992].

(Order Stomatopoda):

Proximal part of biramous fifth through eighth thoracopods or pleopods, three segments in the former, one (two) segment(s) in the latter. Bears endopod and exopod distally. May also refer to basal part (peduncle) of antennule or antenna. (Syn. protopodite) [Stachowitsch, 1992].

(Order Leptostraca):

Proximal part of appendage, e.g., of maxillae or pleopods. (Syn. protopodite) [Stachowitsch, 1992].

(Subclass Branchiura):

Proximal part of thoracic appendage (thoracopod); typically three-segmented, consisting of precoxa, coxa, and basis. Protopod of last (fourth) thoracopod may bear natatory lobe. (Syn. protopodite) [Stachowitsch, 1992].

(Subclass Cirripedia):

() [Anderson, 1980].

^{Lepas anatifera: cirrus V; cirrus I, and extended cirral fan. [Anderson, 1980]}

(Subclass Cirripedia):

Two-segmented proximal part of thoracic appendage (thoracopods in ascothoracican, cirri in other cirripeds). Bears distal endopod and exopod. (Syn. pedicle) [Stachowitsch, 1992].

(Subclass Copepoda):

The basal part of a limb that carries the rami [Boxshall and Halsey, 2004].

(Subclass Mystacocarida):

Proximal part of appendage. Generally specified only when referring to antennae, mandibles, maxillules, maxillae, and maxillipeds. Considered to consist of several indistinct (fused) segments (e.g., precoxa, coxa, basis). Bears gnathobase in mandibles and endites in maxillules, maxillae, and maxillipeds. (Syn. protopodite) [Stachowitsch, 1992].

(Class Ostracoda):

Basal podomere(s) of crustacean limb, often divided into 2 (sometimes 3) segments: the coxa attaching the limb to the body and the more distal basis. (Syn. protopodite) [Cohen, Peterson, and Maddocks, in press].

(Class Ostracoda):

Proximal part of appendage. Typically two-segmented (coxa, basis) and bearing variously developed inner branch (endopod) and out branch (exopod). May bear endites and exites. Generally specified only when referring to legs (i.e., biramous appendages). (Syn. protopodite) [Stachowitsch, 1992].

(Class Ostracoda):

Proximal part of appendage; typically two-segmented (coxa, basis) and bearing variously developed inner branch (endopod) and outer branch (exopod). May bear endites. (Syn. protopodite) [Stachowitsch, 1992].

(Class Remipedia):

Proximal part of biramous appendage. One-segmented, bearing endopod and exopod [Stachowitsch, 1992].

(Superorder Syncarida):

Proximal part of appendage. Consists basically of two segments (coxa, basis). May bear lateral lobes (endites, epipods) and distal branches (endopod, exopod). (Syn. protopodite) [Stachowitsch, 1992].

(Order Thermosbaenacea):

Proximal part of most appendages (with exception of antennules, antennae, mandibles, and pleopods). Conists basically of two segments (coxa, basis). May bear lateral lobes (endites; in maxillipeds also epipods) as well as distal branches (endopod, exopod). (See also peduncle). (Syn. protopodite) [Stachowitsch, 1992].

(Order Euphausiacea):

Proximal part of biramous appendage. Typically specified only when referring to thoracopod, where protopod consists of two segments (coxa, basis), although occasionally also applied to three-segmented (precoxa, coxa, basis) base of maxillules and maxillae or to two-segmented base of pleopods. (Syn. protopodite) [Stachowitsch, 1992].