FOSSILS OF THF CLINTON GROUP. 601 



ANTHOZOA. 



Helioliies subtubulatus, McCoy. Ludlow Falls, Fauver's Quarry, Huff- 

 man's Quarry, Fair Haven. At Brown's Quarry the form with 

 cells 7 mm. in diameter occurs, also a second form with cells 1.2 

 mm. broad. Siebold's Ouarry on Brandt pike. 



Favosites favosus, Goldfuss. Fair Haven, Brown's Quarry. 



Favosites favosoideus, Hall. Soldiers' Home. 



Favosites Niagarensis, Hall. Fair Haven, Brown's Quarry, Soldiers' 

 Home, Siebold's Quarry, Ludlow Falls. At Todd's Fork speci- 

 mens occur with 10 tubes in a width of 18 mm. At Brown's 

 Quarry, tubes 1.8 mm. in diameter occur, with 9-11 diaphragms 

 in 4 mm. Another form has tubes 1.9 mm. wide, and 6 to 7 

 diaphragms in 4 mm. A third has tubes 2.2 mm. wide. 



Favosites venusius, Hall. Ludlow Falls, Fair Haven. 



Alveolites Niagarensis, Rominger. Ludlow Falls. 



Striatopora flexuosa, Hall. Fair Haven, Ludlow Falls. 



Halysites catenulatus Linnaeus. Ludlow Falls, Fair Haven, Soldiers' 

 Home, Siebold's Ouarry. 



Syringopora (Drymobora) fascicularis (Davis), Foerste. Ludlow Falls, 

 Fair Haven, Siebold's Quarry on Brandt pike. 



Aulopora precia, Hall, var. compressa, Foerste. Ludlow Falls. 



Cyathophvllum celator, Hall, var. Daytonensa, Foerste. (Plate 34, Figs- 

 9-11.) Soldiers' Home. 



Cyathophylhcm f calicnlum, Hall. ( Plate 34, Fig. 8.) The outer area is 

 supplied with dissepiments; the value of this character in dis- 

 tinguishing this form from the genus Streptelasma, the writer has 

 not the material to determine. Soldiers' Home, Huffman's, Fau- 

 ver's, Fair Haven. Casts of apparently the typical form occur at 

 Collinsville, Alabama. 



Ptychophylliim ipomea (Davis) Foerste. Centreville. 



Diphyphyllum cczspitosum, Hall. Brown's Quarry, Ludlow Falls, Sol- 

 diers' Home, Centreville, Yellow Springs. 



Acervularia Clinionensis, Nicholson. Yellow Springs. 



Streptelasma Hoskinsoni, Foerste. (Plate 3 i, Figs. 1-6.) Brown's Quarry. 



Streptelasma? geometricum, Foerste. (Plate 34, Figs. 7, 12,13.) Soldiers' 

 Home, Todd's Fork. This may be but another form of Cyatho- 

 phyllum calicnlum, but no dissepiments were noticed. 



Streptelasma obliquins, Foerste. (Plate 34, Figs. 14, 15.) Hanover, 

 Indiana. 



