Bivalvia | ... | Unionidae | Gonideinae | Rectidentini | Contradentina | Yaukthwa zayleymanensis

nominal species Trapezoideus zayleiwanensis Haas, 1912

Trapezoideus zayleiwanensis Haas, 1912 = Yaukthwa zayleymanensis

specimen image from publication‘Preston’ Haas, 1912. Conch. Cab. 9 (pt. 2, h. 46): pl. 33, fig. 1.
(error for Trapezoideus foliaceus var. zayleymanensis Preston, 1912)

= Yaukthwa zayleymanensis

Taxonomic Opinions

+ Trapezoideus foliaceus var. zayleymanensis Preston, 1912 — Simpson, 1914