Keywords: Diatomaceae of Philadelphia Plate 21.jpg follows PLATE 21 <table> <tr> <td style vertical-align top; >Fig </td> </tr> <tr> <td style vertical-align top; >1</td> <td style vertical-align top; >Caloneis permagna Bail Cl </td> </tr> <tr> <td style vertical-align top; >2</td> <td style vertical-align top; >Caloneis permagna var lewisiana n var </td> </tr> <tr> <td style vertical-align top; >3</td> <td style vertical-align top; >Caloneis silicula Ehr Cl </td> </tr> <tr> <td style vertical-align top; >4</td> <td style vertical-align top; >Caloneis silicula var inflata Grun Cl </td> </tr> <tr> <td style vertical-align top; >5</td> <td style vertical-align top; >Caloneis brevis var vexans Grun Cl </td> </tr> <tr> <td style vertical-align top; >6-7</td> <td style vertical-align top; >Caloneis wardii Cl </td> </tr> <tr> <td style vertical-align top; >8</td> <td style vertical-align top; >Caloneis trinodis Lewis </td> </tr> <tr> <td style vertical-align top; >9</td> <td style vertical-align top; >Caloneis trinodis Lewis var </td> </tr> <tr> <td style vertical-align top; >10</td> <td style vertical-align top; >Caloneis powellii Lewis Cl </td> </tr> <tr> <td style vertical-align top; >18</td> <td style vertical-align top; >Caloneis formosa Greg Cl </td> </tr> <tr> <td style vertical-align top; >11</td> <td style vertical-align top; >Neidium affine Ehr Pfitzer</td> </tr> <tr> <td style vertical-align top; >12</td> <td style vertical-align top; >Neidium affine var genuina forma minor Cl </td> </tr> <tr> <td style vertical-align top; >13</td> <td style vertical-align top; >Neidium affine var amphirhyncus Ehr Cl </td> </tr> <tr> <td style vertical-align top; >14</td> <td style vertical-align top; >Neidium amphigomphus Ehr Pfitzer </td> </tr> <tr> <td style vertical-align top; >15</td> <td style vertical-align top; >Neidium hitchcockii Ehr Cl </td> </tr> <tr> <td style vertical-align top; >16</td> <td style vertical-align top; >Neidium productum Wm Sm Cl </td> </tr> <tr> <td style vertical-align top; >17</td> <td style vertical-align top; >Neidium iridus Ehr Cl </td> </tr> </table> https //archive org/details/diatomaceofphi00boye 1916 Charles Sumner Boyer 1856-1928 PD-old-auto-1923 1928 Diatomaceae of Philadelphia |