exclude without cards


Isthmia domuslaterariae Reinhold 1937-8?     [Link to DiatomBase]


Isthmia japonica (Castracane) Sournia 1968     [Link to DiatomBase]


Isthmia nervosa f. micropora Cleve-Euler in Cleve-Euler & Hessland 1947     [Link to DiatomBase]


Isthmia polymorpha Montagne 1840     [Link to DiatomBase]


Isthmia sardoa Zanon 1948     [Link to DiatomBase]


Isthmia schmidtii (Heiden) Simonsen 1992     [Link to DiatomBase]