Pseudonymph semipupa see prepupa

pseudo-osculum n.; pl. -ula [Gr. pseudos, false; L. osculum, small mouth] (PORIF) The exterior opening of the pseu-dogaster; a pseudostoma.

pseudopallium n. [Gr. pseudos, false; L. pallium, mantle] (MOLL: Gastropoda) In some parasites of Echinoderms, a ring-like fold of the anterior part of the snail growing over the visceral mass and serving as a brood chamber.

pseudopenis n. [Gr. pseudos, false; L. penis, male copulatory organ] (ANN: Oligochaeta) The eversible area of the body wall or atrium tip.

pseudoperculum n. [Gr. pseudos, false; L. operculum, lid] (ARTHRO: Insecta) On the eggs of Heteroptera, an independently evolved cap-like structure.

pseudopillar n. [Gr. pseudos, false; L. pila, pillar] (MOLL: Bi-valvia) Low, broad inward projection of the shell wall.

pseudoplacenta n.; pl. -tae [Gr. pseudos, false; L. placenta, cake] (ARTHRO: Insecta) Embryonic or maternal structures of certain female viviparous insects that are presumed to give nourishment to the developing larvae; however, the physiological evidence of the importance of this structure is uncertain.

pseudoplacental viviparity (ARTHRO: Insecta) Referring to insects that produce eggs, containing little or no yolk, that are retained by the female in the ovariole up to the time of hatching. see pseudoplacenta.

pseudopod, pseudopodium n.; pl. -dia [Gr. pseudos, false; pous, foot] 1. Temporary protrusion of the cell, associated with flowing movement of protoplasm, functioning in locomotion and feeding. 2. (ARTHRO: Insecta) An outgrowth or foot-like appendage of the larval body, assisting in locomotion. see parapodium.

pseudopolyploidy n. [Gr. pseudos, false; poly, many; aploos, onefold] Chromosome sets in groups of related species having numerical relationship leading to erroneous interpretation as polyploids.

pseudopore n. [Gr. pseudos, false; poros, passage] 1. (BRYO: Stenolaemata) In Cyclostomata, a pore in the calcified wall of a zooid that is obstructed by organic matter. 2. (PORIF: Calcarea) In Leucosolenia, a large opening through the pseudoderm.

Pseudoptera n. [Gr. pseudos, false; pteron, wing] (ARTHRO: Insecta) Formerly an ordinal name for scale insects.

pseudopuncta n.; pl. -ae [Gr. pseudos, false; L. punctum, small hole or spot] (BRACHIO) A type of shell punctation that points inwardly, appearing on the internal surface as a bump. pseudopunctate a. see endopuncta.

pseudopupa n. [Gr. pseudos, false; L. pupa, puppet] (ARTHRO: Insecta) In Coleoptera and Meloidae, a larva in a quiescent pupa-like condition preceding one or more larval instars before the true pupal stage; a coarctate larva; a semipupa.

pseudopupillae n.pl.; sing. -a [Gr. pseudos, false; L. pupilla, dim. pupa, puppet] (ARTHRO: Insecta) In Odonata, black spots on the compound eyes of live specimens.

pseudorhabdite n. [Gr. pseudos, false; rhabdos, rod] (PLATY: Turbellaria) An amorphous mass of slimy material in the epidermal cells; possibly related to rhabdites.

pseudorostrum n. [Gr. pseudos, false; L. rostrum, bill] (ARTHRO: Crustacea) In Malacostraca Cumacea, paired forward projecting plates on the anterior carapace.

pseudosclerite n. [Gr. pseudos, false; skleros, hard] (ARTHRO: Chelicerata) In Acari, sclerotized area of the cuticle differing distinctly from the soft cuticle.

pseudoscolex n. [Gr. pseudos, false; skolex, worm] (PLATY: Cestoda) Distortion of the anterior proglottids into a holdfast where the true scolex is lost in early development; the deutoscolex.

pseudosegments n. [Gr. pseudos, false; L. segmentum, piece] (PLATY: Cestoda) The discreet, flattened sections making up the major part of the body; each being a repro ductive packet; a proglottid.

pseudoselenizone n. [Gr. pseudos, false; selene, the moon; zone, girdle] (MOLL: Gastropoda) A band of crescentic growth lines on the shell surface resembling a selenizone, but not identifiable as caused by a notch or slit in the aperture.

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