cephalothorax


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cephalothorax

(sĕf′ə-lə-thôr′ăks′)
n.
The anterior section of arachnids and many crustaceans, consisting of the fused head and thorax.

cephalothorax

the fused head and thorax which occurs in many ARTHROPODS, particularly CRUSTACEANS.
References in periodicals archive ?
In this study, Hg is the only metal that showed no significant difference between cephalothorax and abdominal muscle.
markensis the rhabdom layer does not extend into the cephalothorax to form a thoracic eye.
When hunting prey with a high ability to escape, irrespective of the prey taxon, the first easily discernible element was "alert" characterized by movement of the cephalothorax or of the whole body, which resulted in directing the main eyes towards the prey (Figs.
Six hours before hatching, the OIC and the outer envelopes, EE1-EE3, were shed, remaining attached to the embryo only at a point on the posterior dorsal edge of the cephalothorax (Davis, 1965).
MEs are located anteriorly on the cephalothorax (Fig.
The small base size of discrete micromeric elements in representatives of Psammosteidae results in their higher concentration in the fields of tesserae and on the plates of the cephalothorax.
Cephalothorax sections (3-5 mm thick) from sampled organisms were placed in cassettes for histology in Davidson solution.
Nearly all Udonella specimens were attached to the external surface of the copepod's genital complex, with a few on the cephalothorax and egg sacs.
Shape and patterns on cephalothorax differ in the two species.
The morphotypes differ by size, length, color, and spines on the second chelipeds and by the growth rates of the cephalothorax, abdomen, and chelipod (Moraes-Riodades & Valenti 2004).