The Diatomaceæ of Philadelphia and Vicinity

PLATE 24

Reading edition

Fig. Page NAVICULA 1 Navicula maculata (Bail.) Cl. 90 2 Navicula prætexta Ehr. 92 3 Navicula latissima Greg. 90 4 Navicula irrorata Grev. 93 5 Navicula latissima var. elongata (Pant.) Cl. 91 6 Navicula fuchsii Pant. 91

Illustration from The Diatomaceæ of Philadelphia and Vicinity

Fig. Page

NAVICULA

1 Navicula maculata (Bail.) Cl. 90

2 Navicula prætexta Ehr. 92

3 Navicula latissima Greg. 90

4 Navicula irrorata Grev. 93

5 Navicula latissima var. elongata (Pant.) Cl. 91

6 Navicula fuchsii Pant. 91