438 



NEW YORK STATE MUSEUM 



2 7 ir 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, pt 1, 

 P 1 - S^fig- 5- 



Hamilton beds ■ Canandaigua lake, N. Y. 



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



2712 MM type Hall. Paleontology of New York. 1883. v - 5» 



pt 1, plates and explanations, pi. 51, fig. 6. 



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

 pi. 51, fig. 6. 



Hamilton beds Skaneateles lake, N. Y. 



G. B. Simpson, coll. 1863 



2713 — ,M 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 1, 

 pi. 51, fig. 9. 



Hamilton beds Cayuga lake, N. Y. 



J. W. Hall, coll. 1866 



MEGAMBONIA Hall 



Megambonia (?) aviculoidea Hall 



2714 94 1 5 ? type Megambonia aviculoidea Hall. Paleon- 



tology of New York. 1859. 3 :274, pi. 49A, fig. 8. 

 Helderbergian The Helderberg, N. Y. 



Megambonia bellistriata Hall 



2715 type : plastotype Megambonia bellistriata 



Hall. Paleontology of New York. 1859. 3:467^1.109, 

 fig. 4. 



Oriskanian Schoharie N. Y. 



Megambonia cardiiformis Hall 



2716 ^f 2 - hypotype Pterinea c a r d i i f o r m i s Hall. Geology 



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



Megambonia subcardiiformis 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 r, pi, 52, fig. 7, 8. 



Onondaga limestone Clarence, Erie co. N. Y. 



Megambonia crenistriata Clarke 



2717 i*f& type Megambonia crenistriata Clarke. New 



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

 Oriskanian Becraft mountain, Hudson N. Y. 



