WoRMS name details
Pseudohelenina Collins, 1974
520852 (urn:lsid:marinespecies.org:taxname:520852)
unaccepted (subjective junior synonym in opinion of Hayward et al. (2021))
Genus
Discorbis collinsi Parr, 1932 accepted as Pseudohelenina collinsi (Parr, 1932) accepted as Ammonia collinsi (Parr, 1932) (type by original designation)
- Species Pseudohelenina collinsi (Parr, 1932) accepted as Ammonia collinsi (Parr, 1932) (In opinion of Hayward et al. (2021))
marine, fresh, terrestrial
feminine
Collins, A. C. (1974). Port Phillip Survey 1957–63 Foraminiferida. <em>Memoirs of the National Museum of Victoria.</em> 35: 1-61., available online at https://biodiversitylibrary.org/page/39053549 [details] Available for editors 
[request]
[request]
Type locality contained in Port Phillip Bay
type locality contained in Port Phillip Bay [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Pseudohelenina Collins, 1974. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=520852 on 2025-04-05
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Nomenclature
original description
Collins, A. C. (1974). Port Phillip Survey 1957–63 Foraminiferida. <em>Memoirs of the National Museum of Victoria.</em> 35: 1-61., available online at https://biodiversitylibrary.org/page/39053549 [details] Available for editors [request]
[request]Other
additional source
Hayward, B.W.; Holzmann, M.; Pawlowski, J.; Parker, J.H.; Kaushik, T.; Toyofuku, M.S.; Tsuchiya, M. (2021). Molecular and morphological taxonomy of living Ammonia and related taxa (Foraminifera) and their biogeography. <em>Micropaleontology.</em> 67: 109-313. [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]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Diagnosis Test trochospiral, biconvex, all of the two to three whorls visible on the more convex spiral side, chambers enlarging gradually, sutures depressed, oblique and curved back at the periphery, only the six chambers of the final whorl visible and sutures radial and depressed around the deeply indented umbilicus on the flatter umbilical side, the deeply incised sutures giving the appearance of sutural slits around the umbilicus, periphery broadly rounded, peripheral margin lobulate; wall calcareous, hyaline, optically radial, moderately coarsely perforate except for a small clear area on the distal face of the final chamber, surface smooth; primary aperture interiomarginal, umbilical, bordered with a small projecting flap, secondary sutural apertures on the spiral side, subtriangular in outline and extend along the spiral and septal sutures for a short distance, those of early chambers closed secondarily. Pleistocene to Holocene; Australia: Victoria. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
