| Fig. | | Page |
| GOMPHONEIS |
| 1 | Gomphoneis mamilla (Ehr.) Cl. | [70] |
| 2 | Gomphoneis herculaneum (Ehr.) Cl. | [70] |
| GOMPHONEMA |
| 3 | Gomphonema montanum Schum. | [71] |
| 4 | Gomphonema geminatum Lyng. | [71] |
| 5 | Gomphonema acuminatum var. turris (Ehr.) Cl. | [71] |
| 6-12 | Gomphonema lanceolatum var. insignis (Greg.) Cl. | [71] |
| 7 | Gomphonema acuminatum var. coronata (Ehr.) Cl. | [71] |
| 8 | Gomphonema constrictum Ehr. | [72] |
| 9-10 | Gomphonema sphærophorum Ehr. | [72] |
| 11 | Gomphonema acuminatum var. turris (Ehr.) Cl.? | [71] |
| 13 | Gomphonema ventricosum Greg. | [73] |
| 14 | Gomphonema intricatum Kuetz. | [72] |
| 15 | Gomphonema æquale Greg. | [72] |
| 16 | Gomphonema sarcophagus Greg. | [72] |
| 17 | Gomphonema parvulum var. micropus (Kuetz.) Cl. | [73] |
| 18-19 | Gomphonema angustatum Kuetz. | [72] |
| 20 | Gomphonema acuminatum var. trigonocephala (Ehr.) Cl. | [71] |
| 21 | Gomphonema augur Ehr. | [72] |
| 22 | Gomphonema capitatum Ehr. | [72] |
| 23 | Gomphonema olivaceum Lyng. | [73] |
| 24 | Gomphonema brasiliense var. demeraræ Grun.? | [73] |
| RHOICOSPHENIA |
| 25-26-27 | Rhoicosphenia curvata (Kuetz.) Grun. | [56] |
