original description
Finlay, H. J. (1939). New Zealand Foraminifera: Key Species in Stratigraphy - No. 1. <em>Transactions of the Royal Society of New Zealand.</em> 68: 504-533., available online at http://rsnz.natlib.govt.nz/volume/rsnz_68/rsnz_68_04_003710.html
page(s): p. 517 [details] Available for editors
[request]
basis of record
Hayward, B. W.; Grenfell, H. R.; Reid, C. M.; Hayward, K. A. (1999). Recent New Zealand shallow-water benthic Foraminifera: Taxonomy, ecologic distribution, biogeography, and use in paleoenvironmental assessment. <em>Institute of Geological and Nuclear Sciences Monograph.</em> 21: 1-258., available online at https://www.researchgate.net/publication/256455698 [details] Available for editors
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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 lenticular, trochospirally coiled, about eleven chambers in the final whorl, umbonal region with overlapping platelike extensions of the chambers, retral processes present but only observable at the interior as there are no hollow ponticuli, sutures curved, elevated, each with a double row of pores with slightly elevated rim, but these are not homologous with the fossettes of Elphidium, central umbilical region has a distinct spiral canal system formed by sealing off the umbilicalmost part of the chamber lumen as in Elphidiella, the posterior umbilical aperture then connects the spiral canal to the subsutural canals that also are formed as in Elphidiella, periphery sharply angular; wall calcareous, perforate, lamellar, optically radial, septa bilamellar with added septal flap, surface with spiralling ridges parallel to the peripheral margin, apertural face with radiating ridges, and with surface between ridges densely covered with fine tubercles; aperture and foramina consist of a row of openings with bordering rims situated in deep clefts between the ridges near the base of the apertural face, openings may be somewhat obscured by the ridges and tubercles. M. Eocene to Holocene; New Zealand; Eastern Australia; Sub-Antarctic; Kerguelen Island; Falkland Islands; Argentina; Uruguay. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification) [details]
From editor or global species database