"Part I includes descriptions of new species and variety of Resserella, two new Dalmanellas, and two new Horderleyellas, and some notes on the value of B. B. Bancroft's methods of separating dalmanellid species and genera. In Part II two new species and a new variety investigation of Orthis turgida McCoy shows that forms referred to this species belong either to Corineorthis, two new species of which are described, or Paurorthis."

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