| Pinnularia montgomeryana Krammer, 2000 |
| Pinnularia mormonorum (Grunow ex A. Schmidt) Boyer, 1916 |
| Pinnularia neglectiformis Krammer, 2000 |
| Pinnularia neomajor Krammer, 1992 |
| Pinnularia neomajor var. inflata Krammer, 2000 |
| Pinnularia neorabenhorstii Gogorev, 2018 |
| Pinnularia nodosa (Ehrenb.) W. Sm., 1856 |
| Pinnularia obscura Krasske, 1932 |
| Pinnularia obscuriformis Krammer, 2000 |
| Pinnularia ovalis Hilse, 1861 |
| Pinnularia parva (Ehrenb.) Greg., 1854 |
| Pinnularia parva var. minuta Østrup, 1918 |
| Pinnularia parvulissima Krammer, 2000 |
| Pinnularia peracuminata Krammer, 2000 |
| Pinnularia peragallii Kulikovskiy, Lange-Bert. & Metzeltin, 2010 |
| Pinnularia permagna Bailey, 1851 |
| Pinnularia polyonca (Bréb.) W. Sm., 1856 |
| Pinnularia pseudogibba Krammer, 1992 |
| Pinnularia pulchella (Boyer) Krammer, 2000 |
| Pinnularia pulchra Østrup, 1897 |