308 Report of the State Geologist. 



Family AuLOPOEiDiE. 

 Aulopora, Goldfuss, 1826. 



AULOPORA SUBTENUIS, Hall, 1879. 



Aulopora suhtenuis, Hall, 1879. Thirty-second Rep. New York State Mus, 



Nat. Hist., p. 143. 

 Aulopora suhtenuis (pars.), Hall, 1883. Rep. State Geologist for 1883, expL PIi 



II, figs. 9-20. 

 Aulopora suhtenuis, Hall, 1887. Pal. New York, vol. VI, p. 4. 



' This species is an abundant form at the Indian Ladder, and is 

 represented in the collection by several hundred specimens. It 

 is never found procumbent and attached like other examples of 

 the genus, and there is reason to believe that the corallum grew 

 upright from a single attached individual. Buds are given off 

 along the medial dorsal line, and not somewhat laterally, as is 

 common in Aulopora. The cells are often turned sidewise instead 

 of upward. Furthermore, the corallites are not flattened and 

 impressed as they would be if they had been once attached 

 and subsequently broken off. These features may prove sufficient 

 for founding a new genus on this form, closely allied to Atjlopora. 

 Horizon. — Shaly limestone, N. Y. 



Aulopora Schoharie, Hall, 1874. 



Aulopora Schoharice, Hall, 1874. Twenty-sixth Rep. New York State Mus. 



Nat. Hist., p. 110. 

 Aulopora SchoharicB, Hall, 1879. Thirty-second Rep . New York State Mus. 



Nat. Hist., p. 142. 

 Aulopora Schoharice, Hall, 1883. Rep . State Geologist for 1882, expl. PI. II, 



figs. 1-6. 

 Aulopora Schoharice, Hall, 1887. Pal. New York, vol. VI, p. 3. 

 Horizon. — Shaly limestone, Schoharie and Clarksville. 



Aulopora tubula, Hall, 1879. 



Aulopora tubula, Hall, 1879. Thirty-second Rep. New York State Mus. Nat. 



Hist., p. 142. 

 Aulopora tubula, Hall, 1883. Rep. State Geologist for 1882, expl. PI. II, figs. 



7,8. 

 Aulopora tubula, Hall, 1887. Pal. New York, vol. VI, p. 3. 

 Horizon.— Shaly limestone, Schoharie. 



