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Cephalothorax

A fused dorsal covering resulting when the carapace extends dorsally and laterally and/or posteriorly and fuses dorsally with one or more thoracic segments. [Brusca and Brusca, 2002]
All fused somites of the cephalon (head) and thorax, covered in Decapoda by carapace. [Poore, 2004]
Anterior part of body composed of fused cephalic and thoracic somites; latter with appendages modified as mouthparts, sometimes also with relatively unmodified appendages. [McLaughlin, 1980]
Anterior part of body composed of united cephalic and thoracic somites, latter comprising not only those with appendages modified as mouth parts or for food capture but others with relatively unmodified appendages, all forming a fused complex. [Moore and McCormick, 1969]
Anterior part of the body consisting of the fused cephalon (head) and thorax, bearing all the apendages except the pleopods and uropods. [Perez Farfante and Kensley, 1997]
Cephalon and first two thoracomeres. [Holdich and Jones, 1983]
Fused anterior part of the body bearing all body appendages except pleopods and uropods. [Butler, T. H.]
Portion of body bearing eyes and all appendages through fifth pereiopod (fused head and thorax). [Hobbs and Jass, 1988]
Region of the body in decapod crustaceans that is covered by the carapace, with the boundary between head and thorax indicated by the cervical groove. In lobsters the cephalothorax is called the "body;" in shrimps it is called "head.". [Bliss, 1982]
The body of a crab; formed from the fusion of the head and thorax, enclosed dorsally and laterally by the carapace and ventrally by the sternum. [Warner, 1977]
The fused anterior part of the body bearing all of the appendages except the pleopods and uropods. [Chace and Hobbs, 1969]
The fused head and thorax, enclosed dorsally and laterally by the carapace and ventrally by the sternum. [Ingle, 1983]
The fused head and thorax. [Ingle, 1980]
The portion of the body bearing the eyes and all of the appendages through the fifth pereiopod. [Hobbs, Hobbs, and Daniel 1977]
(Taxon-specific: Order Cumacea) Expanded anterior section of body consisting of head (cephalon) fused with first three thoracic somites. Covered by and fused dorsally and laterally with carapace. [Stachowitsch, 1992]
(Taxon-specific: Order Tanaidacea) Term applied to anterior section of body consisting of head and first two thoracic segments (thoracomeres); covered dorsally by carapace. [Stachowitsch, 1992]
(Taxon-specific: Order Decapoda) Anterior division (tagma) of body (cephalothorax, abdomen). Consists of head (cephalon) fused with thorax and is largely or entirely covered by carapace. [Stachowitsch, 1992]
(Taxon-specific: Order Amphipoda) Term applied to anterior section of body consisting of head (cephalon) fused with first (and occasionally with second) thoracic somite.
(syn. head) [Stachowitsch, 1992]
(Taxon-specific: Order Isopoda) Term applied to anterior section of body consisting of head (cephalon) fused with first (and occasionally second) thoracic segment. [Stachowitsch, 1992]
(Taxon-specific: Order Mysida) Anterior section of body consisting of head and, according to interpretation, either those anterior thoracomeres fused to head or entire thorax. [Stachowitsch, 1992]
(Taxon-specific: Subclass Branchiura) Anterior division (tagma) of body (cephalothorax, abdomen). Consists of head (cephalon)-fused with thoracic somite-and remaining three thoracomeres; anterior position covered by carapace. [Stachowitsch, 1992]
(Taxon-specific: Subclass Copepoda) A complex of the cephalic somites plus at least one thoracic somite. [Ferrari and Dahms, in press]
(Taxon-specific: Subclass Copepoda) Anterior region of body including head (cephalon) and thoracic somites (thoracomeres) fused to it. Cephalosome and metasome together form prosome. (See also cephalothorax). [Stachowitsch, 1992]
(Taxon-specific: Subclass Copepoda) The anterior tagma of the body in copepods in which the first pedigerous somite (=second thoracic) is incorporated into the cephalosome and covered by an extended dorsal shield. [Boxshall and Halsey, 2004]
(Taxon-specific: Class Ostracoda) Term occasionally applied to major part of body comprising fused head (cephalon) and thorax. [Stachowitsch, 1992]
(Taxon-specific: Superorder Syncarida) Term occasionally applied to part of body consisting of head and fused first thoracomere. [Stachowitsch, 1992]
(Taxon-specific: Order Thermosbaenacea) Term applied to anterior section of body consisting of cephalon and first thoracic somite (thoracomere). This unit may also be expressed by term cephalon. [Stachowitsch, 1992]
(Taxon-specific: Order Euphausiacea) Anterior division (tagma) of body (cephalothorax, abdomen). Consists of head (cephalon) fused with thorax. Covered dorsally (incompletely on sides) by carapace. [Stachowitsch, 1992]