WoRMS taxon details
Polysegmentina Cushman, 1946
594450 (urn:lsid:marinespecies.org:taxname:594450)
accepted
Genus
Hauerina circinata Brady, 1881 accepted as Polysegmentina circinata (Brady, 1881) (type by original designation)
marine, brackish, fresh, terrestrial
feminine
Cushman, J. A. (1946). Polysegmentina, a new genus of the Ophthalmidiidae. <em>Contributions from the Cushman laboratory for foraminiferal research.</em> 22(1): 1., available online at https://cushmanfoundation.allenpress.com/Portals/_default/files/pubarchive/cclfr/22cclfr1.pdf [details] Available for editors 
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Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2024). World Foraminifera Database. Polysegmentina Cushman, 1946. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=594450 on 2024-12-17
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original description
Cushman, J. A. (1946). Polysegmentina, a new genus of the Ophthalmidiidae. <em>Contributions from the Cushman laboratory for foraminiferal research.</em> 22(1): 1., available online at https://cushmanfoundation.allenpress.com/Portals/_default/files/pubarchive/cclfr/22cclfr1.pdf [details] Available for editors [request]
additional source Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online at https://books.google.pt/books?id=n_BqCQAAQBAJ [details] Available for editors [request]
[request]additional source Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp., available online at https://books.google.pt/books?id=n_BqCQAAQBAJ [details] Available for editors
[request]From editor or global species database
Diagnosis Test discoidal, circular to ovate in outline, laterally compressed, early chambers in sigmoiline arrangement and with more than three chambers per whorl, later planispiral and partially involute, chambers increasing rapidly in breadth and height, and in number up to five to seven per whorl, occasional specimens may tend to uncoil in the final stage, proximal interior of chambers with tiny narrow longitudinal ridges just distal to the sutures, adjacent ridges may coalesce inward to form complete tubes, the interridge areas opening to the exterior as numerous narrow tunnels where the tubular structures merge into longitudinal external ridges that partly cross the chamber; wall calcareous, imperforate, porcelaneous, thick; aperture in the early stage with a tooth that in later chambers rapidly becomes more complex and finally has numerous openings in a narrow and elongate convex trematophore plate. Holocene; Pacific. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
