ig Ithaca Group 19 



donta imicronata a, Spirifer mesacostalis a, Atrypa reticularis a, 

 Goniatites coniplanahisf r, Edmondia subovita r, Niicida corbuli- 

 forniis r, Ambocoelia innbonata r, Microdon bellistriatus c, Grammy- 

 sia subaraiata r, Palceoneilo filosa c, Orthoceras bebryx var. cayuga, 

 AviculopeBen, Cyrtina hamiltonensis, ABinopteria boydix. 



Stations 10 & zz. — The lists of fossils from two slightly differ- 

 ent horizons at the top of Triphammer falls having the same 

 fauna have been combined in the following list: Schizodus 

 chemuiigensis, Edmondia subovata, Nucula diffidens, Lunulicar- 

 diuin fragile r, Cyrtina hamiltonensis a, AElinopteria boydi c, Pro- 

 duHella speciosa c, Atrypa reticidaris a, Modiornorpha subalata var. 

 chemungensis c, Spirifer mesacostalis c, Chonetes setigera c, Micro- 

 don bellistriatus X , AviculopeH^en sp., PterinopeHen ereHtcsx, Cra- 

 nia sp. r, PalcBoneilo plajia c, Orthoceras sp. r, Platyceras sp. r, 

 Mytilarca chemungensis r, PalcBoneilo filosa c, Spathella typica r, 

 Goniophora yninor r, Strophodonta mucronata a, Macrodon sp. r, 

 Orthis inipressa c, Pleurotomaria capillaria r, Chonetes scitida c, 

 Orthoceras bebryx var. cayuga? r, Aulopora sp. r, Chonetes lepi- 

 da r, Orthoceras demusf r, ProduH^ella hallana r. 



Station 12. — The following species were obtained at the old 

 quarry above Triphammer falls: Strophodonta mucronata a, /<^/- 

 tsoneilo constrifla, Cyrtina hamiltonensis, Spathella typica Schizo- 

 dus chemiingensis , Chonetes scitida, Spirifer mesacostalis , ProduBella 

 speciosa; ASlinopteria boydi, Pterinea ( Vertumnia) reproba. 



Station ij. — Below lower bridge, Forest Home. 



The shales here contain an abundance of fossils, of which the 

 following species were identified: Strophodonta imicronata, Ortho- 

 nota parvula, Modiornorpha subalata var. chemung crisis, Grammy- 

 sia subarcuata, Palceoneilo maxima, P. plana, P. constriHa, Crania 

 sp?, Cho7ietes scitida, Orthoceras s"^., Rhynchonella pugnus, Schizo- 

 dus chemungensis, Leda diversa, Spirifer mesacostalis, Spathella 

 typica, Atrypa reticularis, AHinopteria boydi, Bellerophon ithacensis, 

 AviculopeBen cancellatus, Pleurotomaria sp., PterinopeHeyi (Ver- 

 tumnia) reproba, Ardhroacantha ithacensis. 



Prof. H. S. Williams informed the writer that he discovered 

 Spirifer Icevis and its associated fauna near this station but they 

 have not been re-discovered. 



