cxv. 
PAGE 
Figs. 1-5. Retepora doverensis n. sp 422 
1. View of a small specimen. Dover Bridge. x % 
2. Another specimen. Same locality. X % 
3. A third specimen. Same locality. x % 
4. A fourth fragment without ovicells and with few large avicularia. 
The latter are present chiefly on the worn lower end of the 
specimen. X 32/5 
5 A fifth piece from the same locality with numerous ovicells and 
avicularia. x 32/5 
Figs. 6, 7. Amphiblestrum constrictum n. sp 413 
6. Portion of a patch of this species growing partly on one of the 
radial ribs and partly in a groove between the ribs of valve of 
Pecten madisonius. In the middle of the figure the prominent 
avicularia are shown in profile. Cove Point. x 16 
7. A few zooecia showing normal form of same. X 16 
Figs. 8a, 8b, 9. Lepralia maculata n. sp 423 
8a. A specimen growing, as usual, upon a small mollusk and having 
the surface elevations or " maculae " unusually well developed. 
Plum Point. x % 
8b. Portion of surface of same. X 32/5 
9. Portion of surface of a larger mass from the same locality. 
X 32/5 
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