44 2 NEW YORK STATE MUSEUM 



2 73 8 '. <p- TYPE Micro don (Microdonella) (Eodon) 

 complanatus Hall. Paleontology of New York. 

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



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

 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 gregaria see Microdon (Cypricardella) 

 gregarius 



Microdon (Cypricardella) gregarius Hall 



2 739 9 V 2 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. .5, 

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



Microdon (Cypricardella) gregarius 

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

 pi. 73, fig. 2. 



Ithaca beds Jefferson, Schoharie co. N. Y. 



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



2740 2J L2 - TYPE Hall. Paleontology of New York. 1883. v. 5, 



pt i, plates and explanations, pi. 73, fig. 3. 



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



pl- 73i fig- 3- 



Ithaca beds Jefferson N. Y. 



2741 =^-2- TYPE Hall. Paleontology of New York. 1883. v. 5, 



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



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



pl. 73, fig- 5- 



Ithaca beds Jefferson N. Y. 



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



Microdon (Microdonella) (Eodon) gre- 

 garius see Microdon (Cypricardella) gregarius 



Microdon tenuistriata see Microdon (Cypri- 

 cardella) tenuistriatus 



