The Diatomaceæ of Philadelphia and Vicinity

PLATE 34

Reading edition

Fig. Page SURIRELLA 1 Surirella striatula Turpin 125 2 Surirella anceps Lewis 128 3 Surirella intermedia Lewis 128 4 Surirella arctissima A. S. 128 5-6 Surirella delicatissima Lewis 128 7 Surirella intermedia Lewis forma minor? 128 CYMATOPLEURA 8-9 Cymatopleura solea (Bréb.) Wm. Sm. 129

Illustration from The Diatomaceæ of Philadelphia and Vicinity

Fig. Page

SURIRELLA

1 Surirella striatula Turpin 125

2 Surirella anceps Lewis 128

3 Surirella intermedia Lewis 128

4 Surirella arctissima A. S. 128

5-6 Surirella delicatissima Lewis 128

7 Surirella intermedia Lewis forma minor? 128

CYMATOPLEURA

8-9 Cymatopleura solea (Bréb.) Wm. Sm. 129