'6 
PALEONTOLOGY OF NEW YORK. 
Lower Helderberg group (Tentaculite limestone). Clarksville, Albany county; 
Schoharie, Schoharie county, and Jerusalem Hill, Herkimer county. 
Tentaculites elongates. 
PLATE CXIV, FIG. 14. 
TentaaiUtes elongatus. Hall. Pal N. Y., vol. 3, p. 130, pi. vi, figs. 16-21. 1859. 
Lower Helderberg group. Schoharie, Schoharie county. ♦ 
Tentaculites acula, n. sp. 
PLATE CXIV, FIGS. 15-17. 
This species is distinguished by the regular, equidistant annuli and the few 
annulations on the intervals. 
Lower Helderberg group. Port Jervis, Orange county. 
Tentaculites Dexithea, n. sp. 
PLATE CXIV, FIGS. 18, 19. 
Teiiiacndites scalariforviin (partivi), Hall. Pal. N. Y., vol. v, pt. ii, p. 167. 1879. 
This species is distinguished from the T. scalariformis occurring in the Upper 
Helderberg limestone by its more elongate and slender form, and more sloping 
annuli. 
Schoharie grit. Pendleton, Indiana. 
Tentaculites scalakiformis. 
Pl.ATE CXIV, FIG. 20. 
Ttntacnlites scalariformis. Hall. Pal. N. Y., vol. v, pt. ii, p. 167, pi. xxxi, figs. 3-11. 1879. 
Corniferous limestone. Delaware, Ohio. 
HYOLITHES, Eichwald, 1840. 
(See Vol. V, part ii, pp. 191-202.) 
Hyolithes CENTENNIALIS. 
PLATE CXIV, FIGS. 21-23. 
Hyolithes nentennialis, Baerett. Ann. Lyceum Nat. Hist., vol. xi, p. 299. 1877. 
Lower Helderberg group. Port Jervis, Orange county. 
