765 



Prod. 



30, 62, 200; Q2, 46,106; Q3, 25) ; and abundantly by Steven- 

 son in the crinoidal limestones of the four south western 

 counties (K, 80 ; L, 35.)— X///, XIK 



PToductus suhaoiileatus^ English, near indianensis. XI, 



Productus subhorridus, Meek., 1877. XIII, 



Productus symmetricus. (McChesney. Trans. Chicago 



Acad e m y of 

 Science, Vol. 

 1, 1866, page 

 25, plate 1, 

 fig. 9.) Col- 

 y lett's Indiana 

 Report of 

 188 3, page 

 123, plate 25, 

 figs. 1, 2, nat- 

 ural size,, 



PI ^5 ^^^^^ speci- 

 men. Closely 



related between Productus nebrascensis and punctatus; and 

 clearly to the European scahriculus. — Type in Illinois coal 

 measures, — In S. W. Pennsylvania, recognized by J. J. Steven- 

 son (K, p. 80) in the Crinoidal limestone of the Barren meas- 

 ures. XIV. 



Productus tenuistriatus, Hall, Iowa, 1858. XL 



Producti iw a western carbon il'e reus limestone, on a slab 



from near Wayne 

 XI .^^sS^^^^SS^^^^^KIK^^K^ City, Missouri 



river; given 



(medal ruled) by 



Owen inhisGeol. 



Wiscon.,Iowa and 



1 Minnesota, 1852, 



^i pi. 3A, fig. 12.— 



^ XI 



Ow Pre 



