palpal organ

palpal organ

[′pal·pəl ‚ȯr·gən]
(invertebrate zoology)
An organ on the terminal joint of each pedipalp of a male spider which functions to convey sperm to the female genital orifice.
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References in periodicals archive ?
Functional aspects of the male palpal organ in Dolomedes tenebrosus, with notes on the mating behavior (Araneae, Pisauridae).
Araneae: Theridiidae) and its exceptional copulatory behaviour: emasculation, male palpal organ as a mating plug and sexual cannibalism.
Glands in the male palpal organ and the origin of the mating plug in Amaurobius species (Araneae, Amaurobiidae).
But the palpal organ and epigynum are similar to the others.
Palpal organ of male ending in a long and slender or blade-like spine (Raven 1985; Smith 1986).
Agnarsson (2004) analyzed theridiid phylogeny at the generic level using a matrix of 61 terminals (8 outgroup genera, 31 theridiid genera) and 242 characters, of which 88 (36%) pertained to the palpal organ.
Palpal organ with large sinuous conductor, embolus spiraling counter-clockwise in left palp, distal part inside groove in conductor, theridiid tegular apophysis and median apophysis apparently absent.
Keywords: Wolf spider, sandy grasslands, palpal organ, phenology, habitat preference
Interestingly, the mature spermatozoa are not densely packed in the spermophore of the palpal organ (Fig.
Morphology and homologous features in the male palpal organs in Pisauridae and other spider families with notes on the taxonomyofPisauridae(Arachnida: Araneae).
in having the female epigynum with atrium (genital opening) very broadly rectangular, situated posteriorly near epigastric furrow, copulatory ducts short, and male palpal organs with cymbial furrow more than half cymbial length, and with large lamella on conductor.
The conformation of the male palpal organs of linyphiid spiders, and its application to the taxonomic and phylogenetic analysis of the family (Araneae: Linyphiidae).