Cardita elegantoides Ortmann, 1899 † accepted as
Purpurocardia elegantoides (Ortmann, 1899) † (original description)
Cytherea pseudocrassa Ortmann, 1899 † (original description)
Glycimeris subsymmetrica Ortmann, 1899 † (original description)
Lutraria undatoides Ortmann, 1899 † (original description)
Patella pygmaea Ortmann, 1899 † (original description)
Struthiolaria hatcheri Ortmann, 1899 † (original description)
Trochita merriami Ortmann, 1899 (replacement name source)
Trochus philippii Ortmann, 1899 † (original description)
Turritella exigua Ortmann, 1899 † (original description)
Venus arenosa Ortmann, 1899 † accepted as
Adelfia arenosa (Ortmann, 1899) † (original description)
Venus difficilis A. E. Ortmann, 1899 † accepted as
Retrotapes difficilis (A. E. Ortmann, 1899) † (original description)