24 Bulletin of Laboratories of Denison University [Voi. xi. 
be added are by far the most abundant at this locality. Where 
the three species are found in one zone the brachiopods mingle 
together and just above or below the tentaculites occur. 
The latter usually lie on a film of shale, thus showing 
their shallow water habitat. Nearly always the species are 
found at the junction of two beds, but sometimes they lie in the 
middle of a stratum. This suggests that the changing condi- 
tions which separated the strata were most suitable for the life 
composing the zones. 
Many of the best fossil fishes found in the Ohio Devonian 
came from this locality. 
RADNOR. 
This fauna was collected in the Meredith quarry where the 
rock is exposed to a depth of 12 feet. As the fauna shows, 
the section lies below the bone-bed. The rock closely resem- 
bles that found elsewhere at corresponding horizons. It is 
worked on a small scale. The following species were col- 
lected : 
Spongia. Stromatopora mammillata. Nich., Stromatopora 
ponderosa. Nich., Stromatopora sp. 
Anthozoa. Cyathophyllum corniculum., Favosites inva- 
ginatus. Nich. , Favosites hemisphericus. Troost., Favosites tur- 
binatus. Bill., Syringopora tabulata. E & H., Zaphrentis com- 
pr'essa. Edw. , Zaphrentis gigantea. Leseur. , Zaphrentis pro- 
lifica. Bill. 
Braehiopoda. Atrypa aspera. Schloth., Atrypa reticu- 
laris. Linn., Chonetes mucronatus. H, , Leptaena rhomboidalis. 
Wilck. , Pentamerella arata. Con., Pholidostrophia narcea (?) 
H., Rhipidomella livia. Bill., Schizophoria propinqua. H., 
Spirifera acuminata. Con., Spirifera divaricata. H., Spirifera 
fimbriata. Mor., Spirifera gregaria. Clapp., Spirifera macro- 
thyris. H., Spirifera nianni. H., Orthotetes chemungensis. 
Con., Stropheodonta ampla. H., Stropheodonta concava. H., 
Stropheodonta demissa. Con., Stropheodonta hemispherica. 
H., Stropheodonta inequiradiata. H., Stropheodonta patersoni. 
H., Stropheodonta perplana. Con., Terebratula sullivanti. H. 
