352 
The American Geologist. 
June, 1903. 
moiul the smoolli cylindrical form is connected with inidoubted 
Bcatricca iiiufiilata by intermediate forms. To avoid definitely 
referring these forms to typical B. iinditlata they may be known 
as Bcatricca cylindrica. On the island of Anticosti both species 
of I'eatricea have a much more extended ran^-c, apparently 
from the Trenton to near the top of the Ordovician. 
Coral reefs in Kentucky and Indiana. 
CLINTON ABS^T 
INTHESEfiRE^i 
CORAL REEF 
In Nelson, Marion and Washington counties. Kentucky, 
an assemblage of massive corals occurs which is identical with 
the corals found in the coral reef at ]\Iadison, Indiana. Col- 
nmnaria alz'colata and Cohiinnaria halli are common, and Cal- 
opoccia cribriforniis occurs in considerable numbers at some 
localities although the specimens rarely equal a foot in di im-* 
eter. To the northern coral reef the name Madison coral reef 
is here given, while the one in central Kentucky is called the 
Bardstozvn coral reef. Owing to similiarity in appearance 
the temptation is very great to consider the two coral reefs as 
of practically the same age. This temptatior'. is strengthened 
