320 
PLATE V 
Orbignyella nodosa n. sp. 
1. Tangential section x 18. 
2. Longitudinal section x 18. 
Lebanon limestone. Big Springs, Rutherford Co., Tenn. 
Orbignyella multitabulata n. sp. 
3. Longitudinal section x 18. 
4. Tangential section x 18. 
Pierce limestone. Almaville, Tenn. 
Mesotrypa crustulata n. sp. 
5. Tangential section x 20. 
6. Longitudinal section x 20. 
Pierce limestone. Murfreesboro, Tenn. 
