OF DENISON UNIVERSITY. 
93 
PLATE XIII. 
Fig. I. FenesUUa Meekana^ ii. sp p. 64. 
1 . A specimen of the natural size from Richfield, O. Coll, of E. O.U. 
la. Portion of obverse of same x 9 
16. One branch of same x 18, showing striations and opercular cov- 
ers in three of the zooecia apertures. 
Fig. 2. Fenestella Herrickana^ n. sp p. 63. 
2. A fragment of this species of the natural size. Coll, of C. L. H. 
2a. Obverse side of same x 9. 
2b. One branch of 2a x 18, to show more clearly the ornamentation 
and opercular covers. 
2 c. Reverse of same x 9, showing the longitudinally striated condi- 
tion. 
2d. A branch of another specimen x 18, showing the reverse side in 
the old condition where the striae have become obsolete and 
the M^hole surface covered with minute granules. 
Fig. 3. Fenestella albida, Hall p. 65. 
3. A specimen of the natural size belonging to the variety oiRich- 
Jieldensis. The irregular growth often seen in the variety is 
unusually striking in this specimen. Coll, of C. L. H. 
3a. Portion of same x 9, showing the subcarinate character of the 
reverse. 
33. Small portion of the obverse face of another specimen xg. 
5r. A branch of 3<5 x 18, to show the characters more clearly. 
Fig, 4. Fenestella foliata, n. sp p. 67, 
4. A nearly complete zoarium of this species of the natural size. 
Coll, of Prof. C. L. H. 
4a. Portion of a specimen showing obverse face x 9. 
4<5. A branch of \a x 18 . 
4<r, Several branches from near the base of fig. 4x9, showing reverse 
side. 
Fig. 5. Fenestella fegalis, Ulrich p. 70. 
5. A small fragment of this species x 9, having thinner branches 
and larger cell apertures than usual. 
5a. A branch of same x 18 to show the surface markings more 
clearly. 
Fig. 6. Fenestella suhjiexuosa, n. sp p. 68. 
6. Obverse of a gutta-percha cast of this species x 9, showing the 
widely separated zooecia apertures, but little depressed dissepi- 
ments and finely nodose carina. Coll, of Prof. C. L. H. 
Fig. 7. Fenestella cavernosa, n. sp, p.69. 
7. A fragment of the natural size. Coll, of E O. U. 
'ja. A branch showing the obverse side x 18. 
"jb. Portion of the reverse of another example x 9, showing the 
porous character of this face of the zoarium. 
