Fig. 169.—Murex Turonensis.
Fig. 170.—Ostrea longirostris. One quarter natural size.
Living form.
The Foraminifera are also represented by new genera, among which are the Bolivina, Polystomella, and Dentritina.
Fig. 169.—Murex Turonensis.
Fig. 170.—Ostrea longirostris. One quarter natural size.
Living form.
The Foraminifera are also represented by new genera, among which are the Bolivina, Polystomella, and Dentritina.