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Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

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668Maggenti and Gardner2. (ECHINOD: Asteroidea) A raised ossicle on the aboralsurface, crowned with small movable spines or granules.paxilliform a.Pearman's organ (ARTHRO: Insecta) A rugose area adjacentto a membranous tympanum on the inner side <strong>of</strong> the hindcoxae <strong>of</strong> Psocids, thought to be a stridulatory organ.pecilonymy see poecilonymypecking order see hierarchypecten n.; pl. pectines [L. pecten, comb] 1. Any comb- orrake-like structure. 2. (ARTHRO: Chelicerata) In Scorpiones,one <strong>of</strong> a pair <strong>of</strong> appendages on the somite immediately behindthe genital somite. 3. (ARTHRO: Insecta) a. In Culicidae,a Culicinae larvae, bearing a comblike row <strong>of</strong> spiculeson the basal part <strong>of</strong> the siphon; in Anophelinae and Dixidaelarvae, borne on the posterior margin <strong>of</strong> the pecten plate.b. In Apidae, the pollen rake. c. In genitalia, distally pointingrows <strong>of</strong> comblike teeth lining the articular membrane <strong>of</strong>the gonopophyses. d. In Diaspidinae, see gland spines.pectina n.; pl. -ae [L. pecten, comb] (ARTHRO: Insecta) One <strong>of</strong>the broad fringed plates on the pygidium <strong>of</strong> coccids.pectinate a. [L. pecten, comb] 1. Having branches or processeslike a comb. 2. Of claws; having teeth.pectinate chaeta (ANN: Oligochaeta) Crochet seta with twolateral teeth with several fine teeth between.pectinations n.pl. [L. pecten, comb] (MOLL: Polyplacorphora)Small sharp teeth on the outer edges <strong>of</strong> the insertionplates.pectunculate a. [L. pecten, comb; -unculus, little] Having arow <strong>of</strong> minute appendages; pectunculoid.pectus n. [L. pectus, breast] (ARTHRO) A sclerite composed <strong>of</strong>pleuron fused with the sternum.pedal a. [L. pedis, foot] Pertaining to a footlike appendage.pedal disc (CNID: Anthozoa) In Actinaria, the base or foot.pedal elevator muscle (MOLL: Bivalvia) Muscle fibers attachedin the umbonal cavity that raise the foot.pedal gape (MOLL: Bivalvia) Opening between shell valves that

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