XEW YORK STATE MUSEUM 



2711 SL ^- TYPE Hall. Paleontology of New York. 1883. v. 5,pti, 



plates and explanations, pi. 51, fig. 5. 



Hall. Paleontology of New York. 1885. v. 5, pti, 



Pi- S^fig- 5- 



Hamilton beds Canandaigua lake, N. Y. 



R. P. Whitfield and J. W. Hall, coll. 1858 



2712 ^M- 1 - TYPE Hall. Paleontology of New York. 1883. v. 5, 



pt i, plates and explanations, pi. 51, fig. 6. 



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

 pi. 51, fig. 6. 



Hamilton beds Skaneateles lake, N. Y. 



G. B. Simpson, coll. 1863 



2713 -^(p- TYPE Hall. Paleontology of New York. 1883. v. 5,pti, 



plates and explanations, pi. 51, fig. 9. 



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

 pi. 51, fig. 9. 



Hamilton beds Cayuga lake, N. Y. 



J. W. Hall, coll. 1866 



MEGAMBONIA Hall 



Megambonia (?) aviculoidea Hall 



2714 j TYPE Megambonia aviculoidea Hall. Paleon- 



tology of New Y'ork. 1859. 3 :2 74> P^ 49^> n S- 8. 

 Helderbergian The Helderberg, N. Y. 



Megambonia bellistriata Hall 



2 7 j ij jLts_L TYPE : PLASTOTYPE Megambonia bellistriata 

 Hall. Paleontology of New York. '859. 3:467^1.109, 

 fig. 4. 



Oriskanian Schoharie N. Y. 



Megambonia cardiiformis Hall 



27I 6 iLLos HYPOTYPE Pterinea cardiiformis Hall. Geology 

 of New York ; report on the 4th district. 1843. p. 172. 



Megambonia sub ca rdii formis Hall. Paleon- 

 tology of New York. 1883. v. 5, pt i, plates and ex- 

 planations, pi. 52, fig. 7, 8. 



Megambonia cardiiformis Hall. Paleontol- 

 ogy of New York. 1885. v. 5, pt i, pi. 52, fig. 7, 8. 

 Onondaga limestone Clarence, Erie co. N. Y. 



Megambonia crenistriata Clarke 



2JL53. TYPE Megambonia crenistriata Clarke. New 

 York state museum memoir 3. 1900. p. 35, pi. 4, fig. 15. 

 Oriskanian Becraft mountain, Hudson N. Y. 



