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Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

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<strong>Online</strong> <strong>Dictionary</strong> <strong>of</strong> <strong>Invertebrate</strong> <strong>Zoology</strong> 339epimere n. [Gr. epi, upon; meros, part] 1. (ARTHRO: Crustacea)A dorsolateral, flat overhanging keel on the somiteswhich may form a carapace, flattened shield or clam-shellvalves. 2. (ARTHRO: Insecta) In Lepidoptera, a dorsal process<strong>of</strong> the phallobase.epimeron n.; pl. -ra [Gr. epi, upon; meros, part] 1. (ARTHRO)In Arachnida and Diplopoda, a ventral plate to which thebasal segment <strong>of</strong> the leg is attached; a coxal plate. 2. (AR-THRO: Crustacea) See epimere. 3. (ARTHRO: Insecta) Thatportion <strong>of</strong> a thoracic pleuron posterior to the pleural suture;for Diptera, see mesepimeron.epimorphosis n. [Gr. epi, upon; morphosis, form] 1. With thesame form in successive stages <strong>of</strong> growth. see anamorphosis,metamorphosis. 2. Larval forms which are suppressedor passed before hatching, emerging as the adultbody form. 3. (ANN: Oligochaeta) A type <strong>of</strong> regenerationthat results in the addition <strong>of</strong> new tissues and/or parts atthe level <strong>of</strong> amputation. epimorphic a., epimorpha n.epineural canal (ECHINOD) A canal or sinus between each radialnerve and the epidermis.epineural sinus (ARTHRO: Insecta) In embryology, the development<strong>of</strong> primary body cavity between the upper surface<strong>of</strong> the embryo and the yolk.epineurium n. [Gr. epi, upon; neuron, nerve] 1. Outermostconnective tissue sheath on the nerve. 2. (ARTHRO: Insecta)The fibrous connecting tissue that invests a nerveganglion.epinotal spines (ARTHRO: Insecta) In Formicoidea, the spineson the first abdominal segment that protect the pedicel.epinotum n. [Gr. epi, upon; notos, back] (ARTHRO: Insecta) InFormicoidea, the thoracic dorsum posterior to themesonotum, consisting <strong>of</strong> the metanotum and propodeum.see propodeum.epiopticon see medullaepiostracum n. [Gr. epi, upon; ostrakon, shell] (ARTHRO: Chelicerata)1. A thin elastic, colorless layer <strong>of</strong> the cuticle <strong>of</strong>arachnids which overlies the ectostracum layer; further dividedinto two layers: inner, dense and proteinaceous, and

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