486 



Report of the State Geologist. 



96 1893 Ulrich. Geol. Surv. Minnesota. 



97 1894 Simpson. Genera of Fenestellidae. 



98 1889 Ulrich. Micro-Palaeontology of Canada. 



In the list of species, the name of each species is followed by 

 a number and letter. The number refers to the work in which 

 the species was first described, the letter to the formation in 

 which the species occurs, as follows : 



C. Chazy. 



D. Trenton. 



E. Hudson River. 



F. Clinton. 



G. Niagara. 



H. Lower Helderberg. 



K. CORNIFEROUS. 



L. Hamilton. 



N. Chemung. 



O. Lower Carboniferous. 



P. Carboniferous. 



R. Permian. 



Ge-tera and Species of American Palaeozoic Beyozoa. 

 In. the list of works containing accounts of genera and species, 

 each work is preceded by a number. The number following 

 each name refers to those numbers. The letter refers to the 

 geological formation. . (See above.) 



ACANTHOCLADIA, 15. 



americana, 23, R. 

 fruticosa, P. 



ACANTHOCLEMA, 93. 



alternatura, 74, K. 

 bispinulatum, 73, L. 

 confluens, 94, O. 

 divergens, 93, K. 

 ovatum, 93, K. 

 scutulatum, 73, L. 

 sulcatum, 93, L. 

 triseriale, 82, K. 

 ACROGENIA, 87. 



prolifera, 87, L. 



ACTINOTRYPA, 95. 



peculiaris, 38, P. 

 Amplexopora, 78. 

 affinis, 95, E. 

 Canadensis, 81, D. 

 cingulata, 78, E . 

 discoidea, Chsetetes, 61, E. 

 pustulosa, E. 

 robusta, 83 E. 

 septosa, Atactopora, 71«, E 

 superba, 81, D. 

 winchelli, 92, D. 



Anisotrypa, 83. 



fistulosa, 95, O. 



ramulosa, 95, O. 



solida, 95, O. 



symmetrica, 83, O. 

 Archimedes, 9. 



communis, 95, O. 



compactus, 95, O. 



distans, 95, O. 



grandis, 95, O. 



intermedius, 95, O. 



invaginatus, 95, O. 



laxus, 22, O . 



Meekanus, 22, O. 



negligens, 95, O. 



Owenanus, 22, O. 



permienimus, 95, O. 



Proutanus, 95, O. 



reversus, 26, O. 



sublaxus, 95, O. 



Swallovanus, 22, O. 



terebriformis, 95, O, 



Wortheni, 22, O. 

 Archimedipora, 16. 

 Arthroclema, 33. 



angulare, 95, E. 



