Ling. 



350 



Lingulella cselata. (Oriiculacwlata^Hall^'Psil.lti.Y. 184:7^ 



pi. 79, fig. 9a — c. Oholella 



MG? 



lb ^(.7 . ^ 



T' * (Lingulella) ccelata^ Ford. 



Am. eJour. S. [3] II. p. 33, XV, 

 p. 127.) Walcott, Bull. U. S. 

 G.S., No. 30, page 95, plate 

 7, fig. 1, ventral valve, en- 

 larged twice, drawn by Ford ; 

 la, side view of same, with 

 beak as seen from behind. Fig. 

 16, small dorsal (?) valve en- 

 larged. Fig. \g, dorsal valve 

 enlarged, Ic?, Surface of ^^y^- 

 ^^\\^lYe greatly enlarged.— Lower Cambrian {Georgian) cong. 

 lime, near Troy, N. Y. Also, one mile S. of Schodack Landing, 

 Col. Co., N. Y.— Z. C\ See foot note to page 18^. above. 

 Lingulepis acuminata, Conr. See Walcott's Potsdam for- 

 mation of Saratoga 



WalcoW, 



County, N. Y. 1888. 

 pi.— fig. 12. See 

 Bull. 30, U. S. G. S. 

 page 62. — Confined 

 to the Lower Cam- 

 brian beds. In the 

 upper line are the 

 ventral valves ; low- 

 er line4orsal valves, 

 —L. C. 



Lingulepis pinnaformis. {Lingula pinna for mis ^ Owen). 



