184 Cincinnati Societi/ of JYatural History. 



R. P. Whitfield^ described, from the Judith River Group, at the 

 mouth of Judith river, Tapes montanensis, Mactra maia^ Sanfjuino- 

 laria oblata, and Thracia grinnelli. 



W. M. Gabbf described, from tlie Cretaceous of New Jerse}^, Penta- 

 crinus hryani, Goniaster mammillhta^ Scalpellum conradi^ Nautilus 

 hryani.^ Surculd strigosa, Opalia thomasi, 0. cyclostama, Laxispira 

 lumhricalis^ Ostrea bt^yani, Paliurus triangularis ; from the Ripley 

 Group, of North Carolina, Exilifusus k'erri^ Fasciolaria kerri.^ F. 

 ohliquicostata, Gyrotropfis squa^nosus, Ataphrus kerri^ Idonearca 

 carolinensis ; from Patula creek, Georgia, Drillia georgiana.^ Trito- 

 nium edetitatum, Nassa globosa, Fasciolaria crassicosta, Ptychosyca 

 inornata, Aporrhais hicarinata, Bivonia cretacea, Pholadomya 

 littlei, Schizodesma appressa, Tellina georgiana, Gari elUptica^ 

 Peronoeoderma georgiana, Trigonia angulicosta, Idonearca littlei, 

 Trigonarca cuneata, Ostrea littlei.^ 0. exogyrella ; and from Alabama, 

 Idonearca alabamensis, and JSFeithea complexicosta. 



J. W. SpencerJ; examined the countr3' between the Upper Assine- 

 boine river and lakes Winnipegosis and Manitoba, and found rocks of 

 Cretaceous age oi> Thunder Hill, at a height of nearh^ 800 feet above 

 Swan lake. Following the course of Swan river below Thunder Hill, 

 there are numerous exposures of these rocks for about thirtj^ miles, 

 which, with those of Thunder Hill, furnish a thickness of from 550 to 

 650 feet. There are also numerous exposures along the Bell river in 

 the Porcupine mountains. Thej^ repose on rocks of Devonian age. 

 Mr. G. M. Dawson, from the calcareous character, the microscopic 

 forms, and the presence of Inoceramus and Ostrea congesta, referred 

 the rocks to the Niobrara Group. 



Prof. J. F. Whiteaves§ described, from the Cretaceous of the Queen 

 Charlotte Islands, Ammonites perezianus^ A. logananus, A. richardsoni, 

 A. skidegatensis, A. carlottensis, A. taper onsianus^ A. filicinctus, A. 

 crenocostatus, Amauropsis tenuistriata, Pleurotomaria skidegatensis, 

 Martesia carinifera, Pleuromya carlottensis, Pholadomya ovuloides, 

 Callista subtrigona, Trigonia diversicostata^ Meleagrina amygda- 

 loidea, and Syncyclonema meekanum. 



Prof. E. D. Cope|| described, from the Judith River Group of Montana, 

 AnMysodon lateralis, Lcelaps incrassatics^ L. explanatus, L.falculus, 



■■'- Carroll to Yellow Stone Nat. Park, 



t Proc. Acad. Nat. Sci. 



t Geo, Sur. of Canada, 1876. 



§ Mesozoic Foss., Pt. 1. 



II Proc. Acad. Nat. Sci. 



