Coxopleure see episternum

coxopleurite n. [L. coxa, hip; Gr. pleura, side] (ARTHRO: Insecta) A sclerite of the thoracic pleuron, that articulates with the dorsal margin of the coxa; in lower pteryotic orders forms the trochantin and a ventral articulation with the coxa.

coxopod(ite) n. [L. coxa, hip; Gr. pous, foot] (ARTHRO) The basal or first segment of an appendage; a coxa.

coxosternal a. [L. coxa, hip; Gr. sternon, chest] (ARTHRO: In-secta) Of or pertaining to the coxosternum.

coxosternal plate (ARTHRO: Insecta) In Thysanura, the fused coxites and sternum of each segment.

coxosternite a. [L. coxa, hip; Gr. sternon, chest] The coxite; pleurosternite.

coxosternum n. [L. coxa, hip; Gr. sternon, chest] (ARTHRO: Insecta) The abdominal sternum; a plate of compound origin that includes the areas of the limb bases; pleuroster-num.

coxotrochanteral joint (ARTHRO) One of the two primary bendings of a typical arthropod leg; pertaining to the joining of the coxa and the trochanter. see femorotibial joint.

craniad adv. [Gr. kranion, skull; L. ad, toward] Toward the head or anterior end.

cranium n.; pl. -niums [Gr. kranion, skull] The sclerotic, skulllike part of the head capsule. cranial a.

craspedon n.; pl. craspeda [Gr. kraspedon, edge] 1. (CNID: Hydrozoa) Those possessing a velum. 2. (PLATY: Cestoda) Those with segments that overlap.

craspedote a. [Gr. kraspedon, edge] 1. Having a velum. 2. (PLATY: Cestoda) Having the anterior proglottid overlapping the next posterior one.

crassa n.; pl. crassae [L. crassus, thick] (ARTHRO: Insecta) The mandibular apodemes.

crassus a. [L. crassus, thick] Coarse, thick or tumid in structure.

crateriform a. [L. crater, bowl; forma, shape] Having the form of a saucer or hollow, shallow bowl; pertaining to a crater or funnel.

crawler n. [ON. krafla, to paw] 1. One that crawls. 2. (ARTHRO: Insecta) The first instar nymph of coccids, bearing legs and antennae. 3. (ANN) An annelid.

cremaster n. [Gr. kremastos, hung] (ARTHRO: Insecta) 1. The terminal abdominal segment of a pupa. 2. In a subterranean pupa, a terminal spine. 3. The hooked caudal extremity of the pupa that suspends the chrysalids. cremastral a.

crena n.; pl. crenae [L. crena, notch] A notch, cleft or indentation.

crenate a. [L. crena, notch] Having a scalloped or toothed margin; indented; notched.

crenation n. [L. crena, notch] 1. One of a series of rounded projections forming the edge of an object or structure. 2. (nemata) Used to describe the outer lines of the lateral field.

crenature n. [L. crena, notch] A rounded projection; the indentation as between crenations.

crenulate a. [L. dim. crena, notch] Finely notched or scalloped; plicate; annulet.

crepera n. [L. crepera, dark] A ray of paler color on a dark background.

crepidal punctures (ARTHRO: Insecta) In Scarabaeoidea beetles, a group of microsensilla located anterior to the crepis.

crepis n.; pl. crepides [Gr. krepis, base] 1. (ARTHRO: Insecta) In Scarabaeoidea larvae, a thinly sclerotized, anteriorly concave, median cross bar of the haptolachus, usually asymmetrical and indicated by a fine line when present; a transverse, strongly bowed bar. 2. (PORIF) An ordinary minute monaxon, triradiate or tetraxon spicule on which layers of silica have been irregularly deposited.

crepitaculum n.; pl. -la [L. crepitaculum, rattle] (ARTHRO: Insecta) A stridulating organ.

crepitation n. [L. crepitans, rattling] (ARTHRO: Insecta) The discharge of fluid with an audible explosion, used by certain beetles as a defense mechanism.

crepuscular a. [L. crepusculum, dusk] Activity in dim illumination of shade or twilight. see nocturnal.

crescent n. [L. crescere, to grow] Crescent-shaped; sickle-

shaped. crescentic, crescentiform a.

crest n. [L. crista, crest] A ridge or linear prominence on any part of the head or body. see cristate, carinate.

cribellate a. [L. dim. cribrum, sieve] (ARTHRO: Crustacea) A term used to describe the irregular woven silk webs of certain spiders due to the action of the colulus on the emerging silk.

cribellum n. [L. cribrum, sieve] 1. (ARTHRO: Chelicerata) In spiders, a sieve-like, transverse plate, usually divided by a delicate keel into two equal parts, located in front of the spinnerets; the modified anterior median spinnerets. 2. (ARTHRO: Insecta) A sieve-like chitinous plate near the upper surface of the mandibles.

cribrate colony (BRYO: Stenolaemata) A sheetlike or frondose colony with flattened, anastomosing branches separated by fenestrules.

cribriform a. [L. cribrum, sieve; forma, shape] Sieve-like; cri-brose.

cribriform organ (ECHINOD: Asteroidea) Rows of small, webbed, flattened fringing spines forming enclosed passages for water transport from the marginal plates across the oral surface of certain starfishes.

cribriform plates (ARTHRO: Insecta) Cuticular pitted or sievelike plates of certain scale insects, located on the dorsal surface of the abdomen.

cribrimorph n. [L. cribrum, sieve; Gr. morphe, form] (BRYO: Gymnolaemata) Autozooids bearing costal shields composed completely, or in part, of spines fused medially, and most commonly intermittently along lengths.

cribripore n. [L. cribrum, sieve; porus, passage] (PORIF) 1. A specialized exhalant structure of sponges where several exhalant systems combine to empty into a subsurface cavity. 2. In Polymastia (Demospongiae) an inhalent pore.

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