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Data last updated
Mon 1 Dec 2025
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Publication Haas (1919): summarypublication summary
Full CitationHaas, F. 1919. Die Unioniden. [in] H.C. Küster, Systematisches Conchylien-Cabinet von Martini und Chemnitz 9 (pt. 2, h. 51): 257-288, pls. 60-63. Available electronically.
Attributed Nominal Genera
Attributed Nominal Species
Trapezoideus foliaceus Haas, 1919 = Yaukthwa dalliana
‘Gould’ Haas, 1919. Conch. Cab. 9 (pt. 2, h. 51): pl. 32, figs. 3-4. (misidentified reference to Unio foliaceus Gould, 1843)
‘Preston’ Haas, 1919. Conch. Cab. 9 (pt. 2, h. 51): 267. ‘Preston’ Haas, 1969. Das Tierreich 88: 76. (error for Trapezoideus foliaceus var. zayleymanensis Preston, 1912)
Taxonomic OpinionsHarmandia castelneaui Rochebrune, 1904 = Triplodon corrugatus Harmandia somboriensis Rochebrune, 1882 Physunio (s.s.) cambodiensis (Lea, 1856) = Lens contradens Physunio (s.s.) eximius (Lea, 1856) = Lens eximius + Unio semiquadrata Sowerby, 1866 Physunio (s.s.) gravidus (Lea, 1856) = Physunio superbus + Unio abnormis Morelet, 1862 + Unio superbus Sowerby, 1867 Physunio (s.s.) inornatus (Lea, 1856) = Lens inornatus Physunio (s.s.) micropterus (Morelet, 1866) = Lens micropterus Physunio (s.s.) semialatus (DeShayes & Jullien, 1874) = Lens micropterus + Unio micropterus Fischer, 1891 Protunio messageri (Bavay & Dautzenberg, 1901) Trapezoideus dallianus (Frierson, 1913) = Yaukthwa dalliana + Unio foliaceus Martens, 1899 Trapezoideus exolescens (Gould, 1843) = Trapezidens exolescens Trapezoideus foliaceus (Gould, 1843) + Unio peguensis Anthony, 1865 Trapezoideus foliaceus (Gould, 1843) = Yaukthwa peguensis Trapezoideus ludovicianus (Rochebrune, 1882) = Lens micropterus Trapezoideus misellus (Morelet, 1865) = Lens misellus + Unio siamensis Lea, 1866 + Anodon pallegoixi Sowerby, 1867 + Unio comptus Deshayes & Jullien, 1876 + Unio fragilis Nevill, 1877 + Unio exolescens Hanley & Theobald, 1874 + Trapezoideus foliaceus var. zayleymanensis Preston, 1912 Trapezoideus misellus (Morelet, 1865) = Trapezidens exolescens Trapezoideus misellus (Morelet, 1865) = Lens pallegoixi Trapezoideus misellus (Morelet, 1865) = Lens comptus Trapezoideus misellus (Morelet, 1865) = Yaukthwa zayleymanensis Trapezoideus subclathratus (von Martens, 1899) = Indonaia subclathrata
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