TYPE SPECIMENS OF PALEOZOIC FOSSILS 279 



parazyga Hall & Clarke 



Parazyga deweyi Hall 



1710 ■ 2 -^ s - a hypotype Waldheimia deweyi Hall. 10th annual 



report of the New York state cabinet of natural history. 

 1857. p. 89. 



Parazyga deweyi Hall & Clarke. Paleontology 

 of New York. 1894. v. 8, pt 2, pi. 49, fig. 43, 44. 



Helderbergian The Helderberg, N. Y. 



171 1 13 ^- 3 - hypotype Hall & Clarke. Paleontology of New York. 



1894. v. 8, pt 2, pi. 49, fig. 45. 



Helderbergian The Helderberg, N. Y. 



17 1 2 -\®-- hypotype Hall & Clarke. Paleontology of New York. 



1894. v. 8, pt 2, pi. 49, fig. 46. 



Helderbergian The Helderberg, N. Y. 



Parazyga hirsuta Hall 



1 7 13 79 i gl hypotype Atrypa hirsuta Hall. 10th annual re- 



port of the New York state cabinet of natural history. 

 1857. p. 168. 



Trematospira hirsuta Hall. Paleontology of 

 New York. 1867. v. 4, pi. 45, fig. 21, 22. 



Hamilton shales Darien Center, Genesee co. N. Y. 



C. A. White, coll. i860 



1714 --;,-- hypotype Hall. Paleontology of New York. 1867. 



v. 4, pi. 45, fig. 23-27. 



Parazyga hirsuta Hall & Clarke. Paleontology 

 of New York. 1894. v. 8, pt 2, pi. 49, fig. 28-32. 



Hamilton shales Eighteen Mile creek, Erie co. N. Y. 



C. A. White, coll. i860 



17 1 5 fy i hypotype Hall & Clarke. Paleontology of New York. 



1894. v. 8, pt 2, pi. 49, fig. 36. 

 Hamilton shales Canandaigua lake, N. Y. 



17 16 ^Z- 1 hypotype Hall <S: Clarke. Paleontology of New York. 



1894. v. 8, pt 2, pi. 49, fig. 37. 



Hamilton shales Canandaigua lake X. Y. 



17 1 7 — r,- 1 hypotype Hall & Clarke. Paleontology of New York. 



1894. v. 8, pt 2, pi. 49> fig- 39- 



Hamilton shales Canandaigua lake, N. Y. 



