l88 NEW YORK STATE MUSEUM 



1071 3JgSL HYPOPLASTOTYPE Hall & Clarke. Paleontology of New 



York. 1892. v. 8, pt i, pi. 3, fig. 34. 

 St John group Long Reach N. B. 



Acrotreta ? gulielmi see Discinopsis gulielmi 

 Ambocoeliagregaria see Ambocoelia umbonata 

 var. gregaria 



AMBOCOELIA Hall 



Ambocoelia praeumbona Hall 



1072 -Z-flAS. TYPE Orthis praeumbona Hall. loth annual re- 



port of the New York state cabinet of natural history. 

 1857. p. 167. 



Ambocoelia praeumbona Hall. Paleontol- 

 ogy of New York. 1867. v. 4, pi. 44. fig. i. 



Hamilton shales Canandaigua lake, N. Y. 



R. P. Whit field and C. Van Deloo, coll. 1862 



1073 i % LQ - TYPE Hall. Paleontology of New York. 1867. v. 4,. 



pi. 44, fig. 2. 



Hamilton shales Canandaigua lake, N. Y. 



C. A. White and C. Van Deloo, coll. 1860 



1074 :L ^ Q - TYPE Hall. Paleontology of New York. 1867. v. 4, 



pi. 44, fig. 6. 



Hamilton shales Canandaigua lake, N. Y. 



C. A. White and C. Van Deloo, coll. 1860 



Ambocoelia spinosa Clarke 



1075 3JiA TYPE Ambocoelia spinosa Clarke. 131!! annual 



report of the New York state geologist. 1894. 1:177,. 

 pi. 4, fig. 6-8. 



Hamilton shales Livonia shaft, Livingston co.'N. Y. 



Ambocoelia umbonata var. gregaria Hall 



1076 io^A TYPE Ambocoelia gregaria Hall. i3th annual 



report of the New York state cabinet of natural history, 

 1860. p. 81. 



Ambocoelia umbonata var. gregaria HalL 

 Paleontology of New York. 1867. v. 4, pi. 44, fig. 23. 



Chemung beds Randolph, Cattaraugus co. N. Y. 



C. Van Deloo, coll. 1863 



