244 RECORD OF SCIENCE FOR 1886. 



Davies, W. Note on Prof. E. D. Cope's article upon Eilestiis and Pe- 

 lecopterus, etc. (Geol. Mag., new ser., Decade in, vol. in, pp. 141, 

 i42, March, 188G. London.) • 



"Professor Cope is, I thiuk, mistaken in assigning Xiphias Dixoni to Agassiz. 

 The name first appears in a paper by Dr. Leidy '' '• On Sanroceplialus and 

 its Allies," in the Trans. Amer. Pliilos. Soc, vol. xi, p. 01, where the name 

 ■was given to the prolonged ctlimoid bono referred by Sir Philip Egerton 

 to Sani'occphaliis lanciformis, as then understood. 



In that paper Dr. Leidy proves that the teeth assigned by Agassiz to Ihc Sauro- 

 ceplmlus of Harlan, had uo relation to that genns, and he refers the jaws 

 and teeth from the Euglisli chalk to a uew genus under the name of Pro- 

 tosplujrccna, Leidy. The "rostral" bones described by Sir Philip Egerton, 

 he contended, did not belong to Frofosplnjrania, but to a species of A/jj/iias, 

 to which he gave the trivial name of A'. Dixoni. Subsequently Professor 

 Cope described his genus Erisichthc, which certainly embodies both of 

 Leidy'.s species. I may mention here that the prolonged ethmoids are 

 fouud in our Chalk, Upper Greensand, and Gault; and here also are found 

 (and iu no other deposit) tlio peculiar fin-rays referred to rti/chodns by 

 Agassiz. From this association the inference is natural that the ethmoids 

 and fins belong to the same species offish, viz, the Frotosj^hyrana of Leidy, 

 ErisicMhe Cope. (See Paper by W. Davies, F. G. S., on Saurocephalus lan- 

 ci/ormis of the British Crustaceous Deposits, with description of a new spe- 

 cies. (Geol. Mag., 1878, Decade ii, vol. v, p. 254, pi. viii.) 



Davies, W. M. Brief notices of the papers road before the Geological 

 Section of the American Association: Tully Limestone, by S. G. 

 Williams; Mollusca of the New Jersey Marls, by E. P. Whitfield; 

 New York Devonian Geology, by II. S. Williams; Cambrian in New 

 York, b}' C. D. Walcott; Cretaceous Flora, Devonian and Carbonif- 

 erous, Fishes, by J. S. Newberr}' (Amer. Jour. Sci., 3d ser., vol. xxxii, 

 pp. 319-321, October, 188G. New Haven.) 



Dawson, J. W., Sir. Cretaceous Floras of the Northwest. Canad. 

 Kec. Sci., vol. ii. No. 1, pp. 1-0, 18SG. Montreal. 



A summary of the article iu the Transactions of the Royal Society of Canada. 

 Dawson, J. W., Sir. Cretaceous of Northwestern Canada. (Canad. 

 Eec. Sci. ; Amer. Jour. Sci., 3d ser., vol. xxxi, p. 155, February, 18SG. 

 New Haven.) 



Notice of. 



Dawson, J. W., Sir. The Fossil Flora of the western Northwest Terri- 

 tory of Canada. (Amer. Nat., vol. xx, pp. 157, 158, February, 1886. 

 New Haven.) 



Brief rdsuunS of papers noticed last year. 

 Dawson, J. W., Sir. On the Fossil Flora of the Laramie Series of West- 

 ern Canada. (Amer. Nat., vol. xx, pp. G35-G37, July, 188G. Phila- 

 delphia.) 



Abstract of a paper read before the Royal Society of Canada, May, l8Si'>, by Sir 

 J. W. Dawson, LL.D., F. R. S. 



Dawson, J. W., Sir. On the Fossil Flora of the Laramie Series of 

 Western Canaila. Abstract of a paper rc;id to Koyal Society of 

 Canada, M;iy, 1SS8. (Amer. Jour. Sci., 3d ser., vol. xxxii, pp. 242, 

 243, September, 18S5. New Haven.) 



