PLATE 133. 
ZAPHRENTIS SCUTELLA, Nov. Spec. Niagara. 
1. Left lateral view of a corallum, with calyx filled with rock, from 
the Upper Niagara, near Louisville. Collection of the author. 
2. Similar view of a weathered. corallum, from the Upper Niagara 
red clay, near Louisville. 
3. View of the exterior of a corallum, from the Upper Niagara white 
clay, near Louisville. Collection of the author, _ 
ZAPHRENTIS PATULA. Niagara. 
4. Right lateral view of a .corallum, from the lower strata of the 
Niagara period, near Brunerstown, Jefferson county. Collection 
of the author. 
5. View of the calyx of a corallum. 
6. Oblique views of inosculated coralla. 
Examples 5 and 6 from the locality of specimen 4. Collection of 
the author. . 
ZAPHRENTIS SOCIALIS, Nov. Spec. -. Miagara. 
7. Right lateral view of a corallum. 
8. 9. Views of the calyces of coralla. 
From the horizon and vicinage of Z. patula. Collection of the 
author. 
ZAPHRENTIS PATENS, Nov. Spec. Magara. 
10. Left lateral view of a corallum. 
11. View of the calyx of a corallum. 
Both from the horizon and vicinage of Z. patula and Z. socialis. 
Collection of the author. 
ZAPHRENTIS CONULUS. Niagara. 
12. Right lateral view of a corallum. 
13. Posterior view of a corallum. 
14. View of the calyx of a corallum. 
From the Upper Niagara ferruginous clay, near Louisville. Col- 
lection of the author. 
