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The species was described by Charles A. Kofoid in 1905 from the same area was this specimen was found, now know as Scripp's Canyon off San Diego, CA, in July 2009. Lugol's-fixed specimen.
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Drawing by C. A. Kofoid from his 1905 description of Tintinnopsis dadayi (Plate 26, fig. 3). Dimensions added from text description (p. 290).
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Lardero, La Rioja, Spain
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Miranda do Douro, Bragana, Portugal
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Miranda do Douro, Bragana, Portugal
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Miranda do Douro, Bragana, Portugal
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Miranda do Douro, Bragana, Portugal