Cateniform see catenulate

catenulate a. [L. dim. catena; chain] In chainlike form; color markings or indentation on butterfly wings, or shells. catenuliform a.

caterpillar n. [LL. cattus, cat; pilosus, hairy] (ARTHRO: Insecta) An eruciform larva; the wormlike larva of a butterfly, moth, sawfly or scorpionfly.

cation n. [Gr. kata, down; ienai, to go] Any ion bearing a positive charge. cationic a. see anion.

catoprocess n. [Gr. kata, down; L. processus, go forward] (ARTHRO: Insecta) The lowest process of each half of the anal segment; subanal lobe; subanal appendage.

cauda n. [L. cauda, tail] A tail or tail-like appendage; extension of the anal segment, or appendage terminating the abdomen.

caudad adv. [L. cauda, tail; ad, toward] Toward the tail region or posterior end of the body. see cephalad.

caudal a. [L. cauda, tail] Pertaining to a tail or tail-like ap pendage or extremity; located at or on the tail.

caudalabiae [L. cauda, tail; labia, lip] (ARTHRO: Insecta) In Coccidae, the labiae of the abdomen.

caudal alae (NEMATA) Lateral cuticular extensions on the posterior end of male nematodes; the bursa.

caudal appendage 1. (ARTHRO: Crustacea) One of the terminal, multiarticulate or simple, uniramous paired appendages of barnacles, homologous with caudal furca of other crustaceans. 2. (NEMATA) The terminal portion of the tail used for food storage in certain larval mermithids and discarded during larval penetration.

caudalaria n. [L. cauda, tail; -aria, a thing like] (ARTHRO: Insecta) The notal wing process on the posterior part of each lateral margin of the scutum.

caudal bursa (nemata) A peloderan bursa that completely encloses the male tail.

caudal fan 1. (ARTHRO: Crustacea) A structure formed of laterally expanded uropods and telson that functions in swimming or steering and balancing; tailfan. 2. (ARTHRO: Insecta) For mosquito larvae see ventral brush.

caudal filaments (arthro) 1. Thread-like processes at the posterior end of the abdomen. see cercus. 2. For Crustacea see caudal ramus.

caudal furca (ARTHRO: Crustacea) Paired caudal rami of the terminal abdominal segment or telson; small lobes or spines situated near the terminus of the telson.

caudal gills (ARTHRO: Insecta) In Odonata, the three external gills extending from the end of the body of zygopteran larvae.

caudal glands Glands of the tail region of many invertebrates, i.e., spinneret, cement gland, adhesive gland.

caudalid n. [L. cauda, tail] (nemata) A cephalid (subcuticular nerve commissure) located slightly anteriad of the anus.

caudal ocelli (ANN: Hirudinoidea) In piscicolid leeches, eye-spots on the caudal sucker.

caudal papillae (nemata) Papillae located on the tail.

caudal pore (NEMATA) The spinneret.

caudal process (ARTHRO: Crustacea) In Ostracoda, the posterior, upward projection of the valve border.

caudal ramus pl. rami (ARTHRO: Crustacea) One of paired appendages, usually rodlike or bladelike, sometimes filamentous and multiarticular just anterior to the anal segment or telson; caudal filaments; caudal style; cercus; cercopod; furcal ramus; stylet.

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