Richmond Groiil^ of Cincinnati Anticline — Foerstc. 351 
son and IMarion counties, belong to species cotiimon to 
both the Lower and the [Middle Richmond. Among- these 
are HchcrtcUa sinuata, Strophonicna snicata, Rafincsquina 
altcniata. RJiyncliotrcnia capax, Zygospira niodesta, Bys- 
sonychia radiata, Lophospira tropidoplwra, Strcptclasnia riis- 
ticuni, Protarca vcstnsta, Tetradinni minus, and various var- 
ieties of Platystrophia. Several species, however, are not 
known to have occurred earlier than during the JNIfddle Rich- 
mond. DinortJiis subquadrata w-as found in ihe richly fossil- 
iferous part of the Richmond at Bardstown. A typical speci- 
men of Platystrophia acntilirata was found at Bardstown, and 
several, with almost equally prolonged hinge-lines, at the Wil- 
liam McGregor locality. Strophonicna vctusta occurs at Bards- 
town, Raywick, and at the ]\IcGrudor locality. 
In central Kentucky, Bcatricea nndulata, Bcatricca nodn- 
losa, and Hctcrospongia sid)rainosa appear "to be more charac- 
teristic of the upper Lorraine than of any other horizon. How- 
ever, at With rows Run, west of Bardstown, both species of 
Beatricea have been fovmd, associated with Palacophyllnm di- 
varicans and Protarca vetusta, a short distance above the great 
coral bed; and, at Raywick. a large robust specimen of Bca- 
tricca nndulata and several specimens of Hctcrospongia sub- 
ramosa were collected at about the same level. Southwest of 
]\Iount Washington, along \Miittakers creek, a depauperate 
specimen of Bcatricca nndulata, three-fourths of an inch in di- 
ameter, and Hctcrospongia subramosa occur at the base of the 
Richmond section, associated with Strcptclasnia rusticum. Bc- 
atricca nodulosa was collected by A. C Benedict in the Rich- 
mond near Connorsville. Indiana. The exact horizon of the 
Connorsville specimen is unknown. Bcatricca undulafa occurs 
at Richmond, on Elkhorn creek, fifteen feet below the Clinton 
in the Upper Richmond. It is associated with specimens of 
Bcatricca which have a smooth cylindrical form ; not tinted 
longitudinally as in B. nndulata, nor with distant irregular ele- 
vations as in B. nodulosa. Similar smooth cylindrical speci- 
mens occur east of Raywick, in Kentucky, in the great coral bed 
forty-one feet below the cherty beds forming the u]jper half of 
the Clinton. Another specimen was found along the road 
northwest of Fredericktown, Kentucky, apjiarently having 
<lropped from some point below the great coral bed. .\t Rich- 
