precoxa

precoxa
See: praecoxa [Martin, 2005].
Limb segment proximal to coxa, present only in certain subclasses. (Syn. pleuropod) [Moore and McCormick, 1969].
Segment of protopod proximal to coxa, rarely present. (Syn. pleuropod) [Butler, T.H.].
(Order Tanaidacea):
In certain tanaidaceans, apparent segment of pereopod proximal to coxa. According to this interpretation, basal part (protopod) of pereopod consists of three segments (precoxa, coxa, basis) [Stachowitsch, 1992].
(Order Isopoda):
Segment of appendage occasionally distinguished proximal to coxa [Stachowitsch, 1992].
(Order Stomatopoda):
First segment of thoracic appendage (thoracopod). Also interpreted as being fused to and therefore also termed coxa [Stachowitsch, 1992].
(Subclass Branchiura):
In thoracopod, ring-like proximal segment of protopod. (Syn. precoxal ring) [Stachowitsch, 1992].
(Subclass Copepoda):
The proximal segment of the three-segmented protopod of a postmandibular appendage [Boxshall and Halsey, 2004].
(Subclass Mystacocarida):
Protopod [Stachowitsch, 1992].

Crustacea glossary. . 2011.

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  • precoxa — n. [L. prae, before; coxa, hip] 1. (ARTHROPODA: Crustacea) When present, the segment of the protopod proximal to the coxa; pleuropod. 2. (ARTHROPODA: Insecta) see subcoxa; precoxal adj …   Dictionary of invertebrate zoology

  • coxa — ( ) [Holthuis, 1993]. Schematic drawing of a thoracic leg. [Holthuis, 1993] Article 1 of thoracic and abdominal appendages [Holdich and Jones, 1983]. First article of limb, usually short [Poore, 2004]. First or proximal article of leg or… …   Crustacea glossary

  • 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… …   Crustacea glossary

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  • endite — ( ) [Holthuis, 1993]. Schematic drawing of a thoracic leg. [Holthuis, 1993] A mesial lobe like extension of a podomere or such an extension from the axial part of an unsegmented appendage [Hobbs, Hobbs, and Daniel 1977]. A non specific term to… …   Crustacea glossary

  • pleuropod — See: precoxa [Martin, 2005]. See: precoxa [McLaughlin, 1980] …   Crustacea glossary

  • MÉROSTOMES — Les Mérostomes actuels sont des animaux marins à respiration branchiale, protégés par une épaisse carapace articulée. À première vue, ils rappellent les Crustacés, mais ils s’en distinguent immédiatement par leurs chélicères: on appelle ainsi les …   Encyclopédie Universelle

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