sclerite

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sclerite

(sklîr′īt′)
n.
A chitinous or calcareous plate or similar part of an invertebrate, especially one of the hard outer plates forming part of the exoskeleton of an arthropod.

sclerite

chitinous plates separated by thinner membranes in the exoskeleton of arthropods.
References in periodicals archive ?
The sclerite of gnaphosids, the truncus, is probably a homologue of the same sclerites in Pisauridae and also a homologue of the entire sclerite III in the apical division of Liphistius (Kraus, 1978, 1984).
Dondersiidae comprises nine genera and 32 species (Table 1) on the basis of a thin cuticle without skeletal sclerites or epidermal papillae (not unique to this family), and by varying combinations of characters: body with or without posterior end drawn out into fingerlike projection; with two or more types of raised (not adpressed) solid sclerites or one type of adpressed scales; radula monostichous with two or more denticles per row, the central two fused or not fused distally, or radula lacking; ventrolateral foregut glands as groups of extraepithelial unicellular gland cells ("follicles") or as multicellular glands ("type A"); and with or without copulatory spicules.
20, the relationships of the genera in the clade are unresolved, except for Goja and Ianthorntonia; the clade is monophyletic, supported by two synapomorphies: endophallus radular or with sclerites (5-1), and external parameres membranous or well defined projections (7-1).
in press) and the Early Cambrian Forteau Formation of western Newfoundland (Harvey 2010, and unpublished data) are less thermally altered and contain a greater variety of recoverable microfossils, including Little Bear-type remains of chancelloriid sclerites and hyolithid helens.
2009b) has recently confirmed that the eunuch phenomenon typically entails initial sclerite damaging during copulation, followed by voluntary post-copulation palpal removal, corroborating only two previous observations on Nephilengys (Robinson & Robinson 1980).
Four types of epibiotic and endocuticular bacteria on sclerites and in body mantle cuticle have been demonstrated as symbionts in H.
It lacked sclerites, but nevertheless had a complex shape, including a pair of rounded distal prominences.
Disarticulated sclerites of the isotelines are very abundant throughout the member, producing so-called trilobite cemeteries, similar to the lowest beds of the overlying Saka Member.
20) Basal sclerite (R3), two states: present (0), absent (1).
g Naskrecki 1995) refer to this too as a sclerotization of the ectophallic membrane, but to the present author it seems more likely that this is part of the epiphallic membrane, homologous with the post-epiphallic sclerites of the Ommatolampinae (Carbonell et al.