— erosa, xxxiv, 218.
*— gracilis, xl, 97.f
— interrupta, xxviii, 352.f
*— monilifera, xl, 97.f
*Typhis acuticosta, xxiii, 344.
*— gracilis, xxiii, 344.
Ungulina transversa, xxiii, 345.
Unio and Alasmodonta, on the genera, with descriptions of species of Unio, D. H. Barnes, vi, 107f, 258.f
— and Anodonta, on restricting the species of, C. des Moulins, xli, 104.
— alatus, vi, 260; xiv, 285.f