carapace

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carapace

(kăr′ə-pās′)
n.
Zoology A hard bony or chitinous outer covering, such as the fused dorsal plates of a turtle or the portion of the exoskeleton covering the head and thorax of a crustacean.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

carapace

the part of the exoskeleton of a CRUSTACEAN that spreads over the head and thorax; in other animals, e.g. the tortoise, the carapace is the dorsal covering of bony plates.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
A first step in this direction is characterizing the epizoic assemblages inhabiting their carapaces, since species composition might be related not to only environmental conditions but also the autoecology of the turtles (Soylu, Gonulol, Sukatar, Ayaza, & Tok, 2006).
Geometric morphometric techniques were used to evaluate morphological variation in shape and size of the carapace and right cheliped propodus.
The carapace is heavily armored, dorsoventrally flattened and relatively rough, composed of numerous small tubercles that offer favorable conditions as a biogenic surface for the settlement and growth of the oyster.
These species were used to compare de carapace shape between clades to assign if shape is evolutionary fixed in the lineages.
Yield of chitosan from (25.67%) crab leg shells, followed by shrimp head shells (22.06%), crab carapaces (13.81%) and finally crab claws (11.53%).
Females were longer than males among the individuals with CL less than 4 cm whereas males were larger than females in specimens with longer carapace.
The total number of individual lobsters used for exposure trials were 10[degrees]C, n - 9 (5 challenged, 4 control); 15[degrees]C, n = 10 (6 challenged, 4 control); 20[degrees]C, n = 6 (5 challenged, 1 control); and they averaged 30.2 mm in carapace length ([+ or -]0.66 mm SE) and 7.71 g ([+ or -] 1.38 g SE) in size when used for exposures.
Carapace widths, carapace lengths, chela height, and chela length were measured to the nearest millimeter below by using calipers.
First, tissues of lobsters with epizootic shell disease had no pathologic changes other than on the carapaces. Second, lobsters with epizootic shell disease effectively fight off the disease by developing an adequate immune response to the carapace infection (see Smolowitz et al.
For the present study, carapace lesions from wild-caught specimens of H.
Carapaces of dead armadillos were collected during regular surveys of the refuge.