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Evolutionary morphology of the primary male reproductive system and spermatozoa of goblin spiders (Oonopidae; Araneae). (Bulletin of the American Museum of Natural History, no. 396)

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dc.contributor.author Lipke, Elisabeth.
dc.contributor.author Michalik, Peter, 1976-
dc.contributor.author Goblin Spider Planetary Biodiversity Inventory.
dc.date.accessioned 2015-09-28T15:25:56Z
dc.date.available 2015-09-28T15:25:56Z
dc.date.issued 2015-09-24
dc.identifier.uri http://hdl.handle.net/2246/6611
dc.description 72 pages : illustrations (some color) ; 26 cm. Part of the oonopid PBI project. (Acknowledgments) en_US
dc.description.abstract Goblin spiders (Oonopidae Simon, 1890) are distributed worldwide and among the most species-rich spider taxa. However, goblin spiders are understudied in many aspects and their phylogenetic relationships are not well resolved. As previously shown for numerous other spider groups the male and female reproductive system bears many characters of phylogenetic relevance. Moreover, the diversity of sperm structures within spiders is astonishingly diverse and often taxon specific. In the present study, we analyzed the primary male reproductive system and spermatozoa of goblin spiders for the first time. We investigated 18 species of 13 genera representing the subfamilies Orchestininae and Oonopinae by means of light and transmission electron microscopy. We scored 44 characters from the gross morphology of the reproductive system as well as spermatozoa including four new characters for the male spider reproductive system. All investigated species transfer sperm as synspermia, a method corroborating with the recently proposed "Synspermiata" clade unifying all ecribellate Haplogynae. Furthermore, goblin spiders show by far the highest diversity of sperm structures in spiders. In total, we recovered 30 unambiguous synapomorphies for different oonopid taxa. In a comparison with all other spider taxa studied to date, we identified the longest sperm (Neoxyphinus termitophilus) and longest sperm conjugates (Orchestina). Moreover and most remarkable is the presence of aflagellate sperm in Opopaea apicalis, which is the first report of the loss of a sperm flagellum in tetrapulmonate arachnids. These findings are of high interest not only because of their phylogenetic implications, but also with regard to their contribution to our understanding of postcopulatory sexual selection in spiders. en_US
dc.language.iso en_US en_US
dc.publisher American Museum of Natural History. en_US
dc.relation
dc.relation.ispartofseries Bulletin of the American Museum of Natural History;no. 396.
dc.relation.uri http://dx.doi.org/10.5531/sd.sp.10
dc.subject Oonopidae. en_US
dc.subject Generative organs, Male. en_US
dc.subject Spermatozoa. en_US
dc.subject Spiders. en_US
dc.subject Phylogeny. en_US
dc.subject Morphology. en_US
dc.title Evolutionary morphology of the primary male reproductive system and spermatozoa of goblin spiders (Oonopidae; Araneae). (Bulletin of the American Museum of Natural History, no. 396) en_US
dc.title.alternative Male reproductive system of goblin spiders. en_US


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  • Bulletin of the American Museum of Natural History
    The Bulletin, published continuously since 1881, consists of longer monographic volumes in the field of natural sciences relating to zoology, paleontology, and geology. Current numbers are published at irregular intervals. The Bulletin was originally a place to publish short papers, while longer works appeared in the Memoirs. However, in the 1920s, the Memoirs ceased and the Bulletin series began publishing longer papers. A new series, the Novitates , published short papers describing new forms.

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