442 



NEW YORK STATE MUSEUM 



2 73 8 — 2~ type Micro don (Microdonella) (Eodon) 

 complanatus Hall. Paleontology of New York. 

 1883. v. 5, pt 1, plates and explanations, pi. 74, fig. 15. 



Hall. Paleontology of New York. 1885. v. 5, pt 1, 

 pi. 74, fig. 15. 



Ithaca beds Norwich N. Y. 



J. W. Hall and G. B. Simpson, coll. 1870 



Microdon (Microdonella) (Eodon) com- 

 planatus see Microdon cypricardella complanatus 



Microdon g r e g a r i a see Microdon (Cypricardella) 

 gregarius 



Microdon (Cypricardella) gregarius Hall 

 2 739 SLA i L - type Microdon gregaria Hall. Preliminary notice 

 of lamellibranchiate shells, pt 2. 1870. p. 32. 



Microdon (Microdonella) (Eodon) gre- 

 garius Hall. Paleontology of New York. 1883. v. 5, 

 pt 1, plates and explanations, pi. 73, fig. 2. 



Microdon (Cypricardella) gregarius 

 Hall. Paleontology of New York. 1885. v. 5, pt 1, 



pl- 73. fi g- 2 - 



Ithaca beds Jefferson, Schoharie co. N. Y. 



J. W. Hall and G. B. Simpson, coll. 1869 



2740 94 2 72 type Hall. Paleontology of New York. 1883. v. 5, 



pt 1, plates and explanations, pl. 73, fig. 3. 



Hall. Paleontology of New York. 1885. v. 5, pt 1, 



Pl- 73, fig- 3- 



Ithaca beds Jefferson N. Y. 



2741 -^f 2 - type Hall. Paleontology of New York. 1883. v. 5, 



pt 1, plates and explanations, pl. 73, fig. 5. 



Hall. Paleontology of New York. 1885. v. 5, pt 1, 



pl- 73, fig- 5- 



Ithaca beds Jefferson N. Y. 



J. W. Hall and G. B. Simpson, coll. 1S69 



Microdon (Microdonella) (Eodon) gre- 

 garius see Microdon (Cypricardella) gregarius 



Microdon tenuistriata see Microdon (Cypri- 

 cardella) tenuistriatus 



