PLATE LIX. 
GrAMMYSI a PR/ECU rso r . 
Page 376. 
Fig-. 1. The right .side of a specimen preserving both valves. 
Schoharie grit. Schoharie, N. Y. 
Grammysia secunda. 
Page 376. 
Figs. 2. 3. Cardinal view and right side of a specimen. 
Corniferous limestone. Clarence Hollow, N. Y. 
Grammysia constricta ? 
i@H0iBn9mtb y*f» |.* js *to vofv tlvflifvr. 
Page 377. 
See. Plate 78. 
Figs. 4, 5. Right and left sides of the same specimen, referred to this species with doubt. 
From a compact limestone in the Marcellus shale. Hear Buffalo, JS. 1". 
51 -git mrnhriqs -ml mo-ft giyf.mrijjito osofimuq erf) -grriwoiirt • i!< i: .m l.i 
Grammysia lirata. 
Page 371. 
Fig. 6. Left side of a small specimen. 
Hamilton group. Schoharie Co., N. Y. 
Fig. 7. A cardinal view of a specimen holding the two valves in conjunction. 
Fig. 8. A larger individual. 
Hamilton group. Schoharie Co., N. Y. 
Fig. 9. The left side of an individual retaining the two valves in conjunction. 
Fig. 10. Cardinal view of a larger specimen. 
Hamilton group. Schoharie Co., N. Y. 
Fig. 11. A right valve of another individual. 
Hamilton group. Schoharie Co., N. Y. 
Fig. 12. A cardinal view of a specimen. 
Hamilton group. Schoha/i'ie Co., N. Y. 
