PLATE 48, 
CLADOPORA ACULEATA, Noy. Spec. Niagara. 
1. Lateral view of a fragment from the Upper Niagara white clay, near 
Louisville. Collection of the author. 
CLADOPORA orpINATA, Nov. Spec. Niagara. 
2. Lateral view of a small fragment from the same horizon as C. acu- 
leata, near Louisville. Collection of the author. 
CLADOPORA PROBOSCIDALIS, Nov. Spee. Miagara. 
3. Lateral view of a fragment from the same horizon and place as the 
preceding species. Collection of the author. 
CLADOPORA MENIS, Nov. Spec. Niagara. 
4, Lateral view of the upper portion of a frond showing the tricho- 
tomous branching; from the horizon and neighborhood of the 
examples preceding. Collection of the author. 
5. Pedicle of a corallum with a portion of the trunk; from the horizon 
and place of example 4. Collection of the author. 
CiLapopora stTRiaTA, Nov. Spec. Niagara. 
6. Lateral view of several fronds of a corallum, from the horizon of the 
above examples. Collection of Mr. Nettelroth. 
CLADOPORA EQUISETALIS, Nov. Spec. Niagara. 
7. Several fronds springing from the same base; from the same horizon 
as the above. Collection of Mr. Nettelroth. 
CLADOPORA LAQUEATA. Magara. 
§. Corallum, pedicle wanting, from the Upper Niagara white clay, near 
Louisville. Collection of the author. 
9. Nearly entire corallum from the Upper Niagara red clay, near Louis- 
ville. Partly invested by Stromatopora concentrica. Collection 
of Mr. Nettelroth. 
