NEW YORK STATE MUSEUM 



1 07 1 ^J^a hypoplastotype Hall & Clarke. Paleontology of New- 



York. 1892. v. 8, pt 1, 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 type Or this praeumbona Hall. 10th 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. 1. 



Hamilton shales Canandaigua lake, N. Y. 



R. P. Whitfield and C. Van Deloo, coll. 1862 



1073 1S ^ SL 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. i860 



1074 :L ^- 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. i860 



Ambocoelia spinosa Clarke 



1075 7 y 1 type Ambocoelia spinosa Clarke. 13th 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 v&r. gregaria Hall 



1076 type Ambocoelia gregaria Hall. 13th annual 



report of the New York state cabinet of natural history. 

 i860, 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 



