428 PALEONTOLOGY OF NEW YORK. 



PARACARDIUM, Barrande. 1881. 

 Paracardium Doris. 



PLATE LXX, FIGS. 10, 11. 

 Girdiola Doris, Hall. Pal. N. Y., vol. v, pt. 1. Plates and Exi)lanation8 : PI. 70, figs. 10, 11. 1883. 



Shell minute, broadly ovate ; length and height nearly equal. Pallial margin 

 regularly curving, except on the posterior slope, which is sub-truncate. 

 Valves gibbous in the middle and above. 

 Beaks anterior to the centre, prominent, incurved. 

 Siu"face marked by numerous fine radii, with narrow interspaces. 

 A specimen has a length of 3.5 mm. and a height of 4 mm. 



This form is similar to several species of the genus illustrated by Barrande. 

 The figures given on plate Ixx do not properly represent the form of the spe- 

 cies. 



Formation and locality. In the soft shales of the Portage group, at Shakers' 

 Mill, Cashaqua creek, N. Y. 



