Drawing Ferry Siemensma

It’s probably not a separate species, but E. acanthophora without spines.

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Centropyxiella arenaria

  Centropyxiella arenaria , after Valkanov, 1970   Centropyxiella arenaria  Valkanov, 1970 Diagnosis: Test with almost parallel sides, covered with mineral grains; length varying strongly,

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Centropyxiella

  Genus Centropyxiella  Valkanov, 1970 Diagnosis: Test with plagiostome, embedded with xenosomes. Border of the pseudostome bent outwardly, in contrary to Centropyxis where the border

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Centropyxis armata

  Centropyxis armata, after Van Oye, 1952   Centropyxis armata  (Van Oye, 1952) n. comb.Basionym: Cyclopyxis armata Van Oye, 1952 Diagnosis: Test chitinoid, with relatively long

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Archerella elliptica

  Archerella elliptica, after Van Oye, 1956   Archerella elliptica  (Decloitre, 1974) n. comb.Basionym: Ditrema elliptica Decloitre, 1974   Diagnosis: Test elliptical with two apertures. Dimensions:

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Archerella jollyi

  Archerella jollyi, after Van Oye, 1956   Archerella jollyi  (Van Oye, 1956) n. comb.Basionym: Amphitrema jollyi Van Oye, 1956   Diagnosis: This species differs

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