30 Thirty-fifth Annual Eeport of the 



No. of 

 «-. ™ , -*t. specimens. 



21 Platyostoma Niagarense, u " 1 



22 Favosites Forbesi var occiden talis, " u 1 



23 Eucalyptocriuus crelatus, " " 1 



24 " crassus, M " 1 



25 Niagara shale with Bryozoa, " w 1 



26 Lichenalia concentrica, " " 1 



Lower Helderberg Group. 



27 Tentaculites gyracanthus, Clarksville, N. Y 1 



28 Stromatopora, " " 1 



29 Favosites Helderbergia 1 , Sharon, " f 1 



30 Zaphrentis Roemeri, Clarksville, " '. 1 



31 Streptelasina striotum, " " 1 



32 Atrvpa reticularis, " " 1 



33 Pentaraerus galeatus, " " 1 



34 Orthis varica, " « 4 



35 Spirifera perlamellosa, u " 1 



36 " macropleura, " " 1 



37 Shaly limestone with Bryozoa, " " 1 



Orishany Sandstone, 



38 Rensselsena ovoides, Schoharie, N.Y 1 



39 " ovalis, Walpole, Canada 1 



40 Spirifera arrecta, Schoharie, N. Y 1 



41 " arenosa. " « 1 



Upper Hclderberg Group. 



42 Strophodonta perplana (Schoharie grit), Clarksville, N, Y. . 1 



43 Atrvpa impressa, tk " " " . . 1 



44 Heliophyllum Halli, Leroy, N. Y 1 



45 Favosites Emmonsi. " " 1 



4b* " hemispherica, * " 1 



47 Eridophyllum Simcoense " " 1 



Hamilton Group. 



No. of 

 specimens. 



48 Leiorhynchus limitaris (Marcellus shale), W. Avon, X. Y. . 1 



49 Spirifera mucronata, Widder, Canada. 



50 " granulif era, Alexander, N. Y 



51 M medialis, York, " 



52 Cyrtina Hamiltonensis, Widder, Canada 



53 Orthis Yanuxemi, Canandaigua Lake, N. Y 



54 Amboco?lia umbonata, Bellona, " 



55 Pentamerella arata, " " 



56 Tropidoleptus carinatus, Canandaigua Lake, N. Y 



57 l\hynchonella congregata, Leonardsville, (i 



58 Atrvpa reticularis, Canandaigua Lake, " 



59 " aspera, Avon, " 



