GEOLOGICAL SECTION OF THE HAMILTON ASSOCIATION. 157 



Specimen. Formation. Locality. Prov. 



Pleubratula bovoides ^easm-es 1 Kansas city Missouri 



Productus cona " " " 



Necopterus " " " 



Conularia " " 



Pecopleris Arboresens " Mazon Cr'k Illinois 



Ostrea quadruplicatus Cretacious Dennison Texas 



Buccanum undatum Post Tertiary Montreal Que. 



List of specimens presented to the Geological section of the 

 Hamilton Association by Andrew T. Niell, Esq. : 



SPECIMEN. FORMATION LOCALITY. PROV. 



2 Pleurotomaria umbilicata Trenton comngwooa Ont. 



1 Murchisonia fusispira subusi- 



formis " " " 



1 Murchisonia belicincta " " " 



2 Chaetetes petripolitona " " " 



2 Strophomena attenuata " Craigleith " 



2 Lingula Collingensis " coiimgwood " 



1 Lingula custa " Craigleith . " 



1 Lingula obtusa (Hall) Utica Craigleith Ont 



1 Asophus Canadensis, caudal 



shield • 



1 Leptaena sericea " " 



1 Orthoceras 



1 Rhynchonella " " " 



2 Modilopsis modilaris free Hudson River Bu S on Ont 



1 Cyrtodonta " " " 



3 Orthis 



5 Orthis testudinaria . . .' " " " 



1 Pterinea demissa " " " 



1 Ambonychia radiata " " 



2 Pentamerus occidentalis Guelph boulder Arthur Ont 



Several SpiriferaArenosa (Conrad) orisimtiy sandstone Hagamflie Ont 

 Several Rensselasriaovoides. — Hall " 



1 Strophomena ampla 



5 Spirifera perrinea. — Hall " 



Spirifera mucronatus Corniferous St Marys Ont 



