30 Cincinnati Society of Natural History. 



Lake, Nebraska, Corhulu inornata^ Pholas cuneata, now 3Iartisia cu- 

 neata and Actceon attenuata. 



From (now the Fort Pierre Group) near Fort Clark, Teredo glohosa, 

 Hclicoceras tortuin, now Jleteroceras tor turn, Turrilites cochleatus, 

 now Heteroceras cochleatum^ H. tenuicostatum, Turrilites umhilicatus, 

 now //. iimhilicatum, and Ancyloceras uncum. 



From (now the Fort Benton Group) Fort Benton, on the Upper Mis- 

 souri, I)wceramus umbonatus now Volviceramas umbonatics, and from 

 the Black Hills, Scaphites larvaformis. 



Dr. Leich' described, from the marl of Haddonfield, Camden county, 

 New Jersej', Iladrosanrus foiilki. 



F. B. Meek* described, from Vancouver's Island, Nucula traskana. 

 Area a^quilateralis, A. vancoiivercoisis, Cardium scitulum, Phola- 

 domya borealis, P. sitbelongata, Trigonia evansana, Thracia occiden- 

 talism T. siibtruncata, Dentaliumnanaimoense, and Ammonites ramosus. 

 Dr. B. F. Shumardf described, from the same island, Inoceramus 

 Vancouver en sis, Pinna calamitoides, and Pyrula glabra. 



Prof. E. EmmonsJ described, from the Greensand of North Carolina, 

 Sphenodus rectidens, and Belemnitella compressa. 



Prof. Oswald Heer,§ of Zurich, Switzerland, described, from Ne- 

 braska, Liriodendi on meeki^ Sapotacites haydeni, Leguminosites mar- 

 coKanus, now Bumelia marcouana, Popiilus cycloplujlla, now Cissites 

 cyclophylla, Phyllites obcordatus, and P. obtusilobatus. 



In 1859, Prof Henr}^ Y. Hind|| found the Cretaceous rocks in posi- 

 tion on the Little Souris River, in longitude 100° 30' \V., and on the 

 South Branch of the Saskatchewan, in longitude 10G° 35' W., and be- 

 tween these widel}' separated points in many places on the Assiniboine, 

 the Qu'Appelle, and their affluents. Fifteen miles from the mouth of 

 the Little Souris, the rocks consist of a ver}^ fissile, dark blue argilla- 

 ceous shale, holding numerous concretions, containing a large per cent, 

 age of iron. This exposure is 70 feet thick, and the la^'ers are per- 

 fecth' horizontal. The whole is supposed to be of the age of the Fort 

 Pierre Group. The Cretaceous of this latitude appears to repose 

 directl}^ upon the Devonian, as the former is found undisturbed and 

 nearly horizontal at altitudes from 400 to 600 feet above exposures of 

 Devonian age, recognized in situ 30 miles to the east. 



Prof F. B. Meek^ described, from the Little Souris River, Anomia 

 flemingi, Inoceramus cayiadensis, Leda hindi^ now JSFucalana. hindi, and 



■■' Trans. Alb. Inst., vol. 4. t Trans- St. Louis Acad Sci., vol. 1. 



t Geo. Sur. N. Carolina. § Proc Acad. Nat. Sci. 



II Assiniboine and Saskatchewan Expl. Expcd. 



^ Rep. on Assiniboine and Saskatchewan Expl. Exped. 



