;528 



PLATE IX 



Batostoma suberassiun n. sp. 



1. Longitudinal section x 20. 



2. Tangential section x 20. 



3. A portion of zoarium, natural size. 



Pierce limestone. Murfreesljoro and Eagleville, Tenn. 



Batostoma dendroidea n. sp. 



4. Tangential section x IS. 



5. Longitudinal section x 18. 



Pierce limestone. Min-freosboro, Walter Hill, Wards Mills, and 

 Lascassas, Tenn. 



Batostoma ramosa n. sp . 



6. Longitudinal section x 20. 



7. Tangential section x 20. 



Pierce limestone. Murfreesboro, Tenn. 



