278 NEW YORK STATE MUSEUM 



Streptorhynchus subplanum Beecher & 

 Clarke. New York state museum memoir i. 1889. pi. 2, 

 fig. 14, 143. 



Niagaran Waldron Ind. 



C. D. Walcott and C. Van Deloo, coll. 187$ 



1704 i*p HYPOTYPE Beecher & Clarke. New York state museum 



memoir i. 1889. pi. 2, fig. 16, 18. 



Niagaran Waldron Ind. 



C. D. Walcott and C. Van Deloo, coll. 1878 



1705 ^/^ HYPOTYPE Beecher & Clarke. New York state museum 



memoir i. 1889. pi. 2, fig. 17, 20. 



Niagaran Waldron Ind. 



C. D. Walcott and C. Van Deloo, coll. 187$ 



1706 i ^ J - HYPOTYPE Beecher & Clarke. New York state museum 



memoir i. 1889. pi. 2, fig. 19. 



Niagaran Waldron Ind. 



C. D. Walcott and C. Van Deloo, coll. 187$ 



i77 79 5 37 HYPOTYPE Beecher & Clarke. New York state museum 

 memoir i. 1889. pi. 8 (series of 13 growth stages). 

 Niagaran Waldron Ind. 



C. D. Walcott and C. Van Deloo, coll. 1878 

 Orthothetes woolworthanus Hall 



1708 3-2-2^- HYPOTYPE Strophomena woolworthana Hall. 



loth annual report of the New York state cabinet of 

 natural history. 1857. p. 48. 



Streptorhynchus woolworthana HalL 

 2d annual report of the New York state geologist. 1883. 

 pi. 39, fig. 29. 



Orthothetes woolworthana Hall & Clarke. 

 Paleontology of New York. 1892, v. 8, pt i, pi. 9, 

 fig. 29. 



Helderbergian Schoharie county, N. Y. 



J. Gebhard purchase 

 PARASTROPHIA Hall & Clarke 



Parastrophia hemiplicata Hall 



1709 :L *f- Q - HYPOTYPE Atrypa hemiplicata Hall. Paleon- 



tology of New York. 1847. 1:144. 



Parastrophia hemiplicata Hall & Clarke. 

 Paleontology of New York. 1894. v. 8, pt 2, pi. 63, 

 fig. 2. 



Trenton limestone Jacksonburg N. Y. 



