36 



Report of the State Geologist. 



Miorodon, grega/rius. 

 Gram mysia ell i/ptica. 

 Actinopteria eta. 



Atrypa reticularis, large, as above. 

 Schizophoria impressa, large, as above. 



Spirifer mucronatus. This is a form of the species which presents the 

 characters normal to the typical form ; delicately varicose surface, well 

 defined median plication at the bottom of the sinus, and narrow, considerably 

 extended wings. 



( h/rtMba recta. 



Spirifer rrmcronatus. The small, short-winged variety mentioned above. 



Productella speciom. 

 Liorhynchus glob uliformis. 



Figure 2. 



2, Is ninety feet higher up; sandy shales, containing: 



Atrypa reticularis, very abundant. 



Sch izophoria impream. 



L iorhyuchvs glob uliformis. 



Spirifer mucronat/us, both the normal form and the variety above men- 

 tioned. 



3. Calcareous and arenaceous shales, sixty feet above. 



Spwifer mucronat/us. The small variety above mentioned; abundant. 

 Scliizoplioria impresxu, large. 

 / *rod uctella speciosa. 

 Atrypa reticularis, large. 



