TYPE SPECIMENS OF PALEOZOIC FOSSILS 223 



Cyrtia cyrtiniformis Hall & Whitfield 



1314 7 ^i type Spirifera cyrtinaeformis Hall & Whit- 



field. 23d annual report of the New York state cabinet of 

 natural history. 1873. p. 238, pi. 11, fig. 21-24. 



Cyrtia cyrtiniformis Hall & Clarke. Paleon- 

 tology of New York. 1894. v. 8, pt 2, pi. 25, fig. 26-28. 



Hamilton horizon Rockford la. 



R. P. Whitfield, coll. 1866 



13 1 5 1 ^2 JL hypotype Hall & Clarke. Paleontology of New York. 



1894. v. 8, pt 2, pi. 25, fig. 29. 



Hamilton horizon Rockford la. 



R. P. Whitfield, coll. 1866 



1316 1 ^ JL hypotype Hall & Clarke. Paleontology of New York. 



1894. v. 8, pt 2, pi. 25, fig. 30. 



Hamilton horizon Rockford la. 



R. P. Whitfield, coll. 1866 



1 3 1 7 12 4~ x hypotype Hall & Clarke. Paleontology of New York. 



1894. v. 8, pt 2, pi. 25, fig. 32. 

 Hamilton horizon Hackberry Grove near Rockford la. 



R. P. Whitfield, coll. 1866 

 Cyrtia triquetral*? Cyrtina triquetra 



cyrtina Davidson 



Cyrtina acutirostris Shumard (sp.) 



1318 ?yo hvpotype Cyrtia acutirostris Shumard. Geo- 



logical report of Missouri. 1855. p. 204 



Cyrtina acutirostris Hall & Clarke. Pale- 

 ontology of New York. 1894. v. 8, pt 2, pi. 28, fig. 38. 

 Choteau limestone Pike county, Mo. 



13 1 9 lx V ftiL hypotype Hall & Clarke. Paleontology of New York. 



1894. v. 8, pt 2, pi. 28, fig. 39-42. 

 Choteau limestone Pike county, Mo. 



1320 i^&si. hypotype Hall & Clarke. Paleontology of New York. 



1894. v. 8, pt 2, pi. 28, fig. 44. 



Choteau limestone Pike county, Mo. 



1321 ^Y^ hypotype Hall & Clarke. Paleontology of New York. 



1894. v. 8, pt 2, pi. 28, fig. 54. 



Choteau limestone Pike count), Mo. 



