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Morphological Attributes: Wallmaterial: hyaline Overall appearance: elongate Coiling: biserial Chamberform: triangular to trapezoid Aperture Position: basal Aperture Form: arcuate lunear arch, --, --, -- Sutures: depressed, --, -- Ornamentation: --, --, --, -- |
identified by scientist Quaternary Holocene recent off Peru and Northern Chile Challenger Station 300 FEU-1003469 |  | identified by M. Hesemann Quaternary Holocene recent Pacific off Alaska Sitka FEU-1023972 |  | Quaternary Holocene recent Pacific off Alaska Sitka FEU-1021510 |  | Quaternary Holocene recent Pacific off Alaska Sitka FEU-1021511 |  |