131 Bulletin 13 iq 



LINGULA Bruguiere 



Lingula. cf. L. iole Billings 



Pal. Fos., vol. I, 1861-65, p. 215, fig. 199. 



A small lingula of which both valves are retained was found. 

 It is closely related to L. iole of Billings, but can not be included 

 in that species with certainty. 



Locality. — Found near Ft. Hunter. 



Bchinodermata 



Crinoid Stem and Plates 

 PI. 16, figs. 16, 17, 18 



A number of excellently preserved plates probably of cys- 

 tideans were found on weathered slabs of impure limestone. 

 They were, however, not sufficient for specific or generic identi- 

 fication. 



Locality. — Calciferous, near Ft. Hunter, N. Y. 



Cephalopoda 



CYRTOCERAS Goldf. 



Cyrtoceras kirbyi (?) Whitfield PI. 17, Figs. 3. 4 



A. M. N. H. Bull., vol. 2, p. 57, PI. 10 



A specimen which has been doubtfully referred to this species 

 is as follows: Shell almost straight (this may be due to pressure). 

 Transverse secftion broadly oval, tube gradually enlarging. Septa 

 strongly concave, almost angulate on the side, strongly arching 

 on the back of the shell. 



Air chambers numerous, having a depth of somewhat less 

 than 1 mm. where the longer diameter is 12 mm. and the 

 shorter 7 mm. 



Locality. — No. VI 2 of the Ft. Hunter .se(5lion. 



Cyrtoceras sp. (?) PI. 17. figs- 5, 6. 



A .small specimen 12 mm. long and 8 mm. in diameter with 

 5 septa to 3^ mm. can not be placed with any described species. 



