NORTH AMERICAN INVEKTEHKATE PALAEONTOLOGY. 581 



"U niTEAViiS, J. F. — Paleozoic Fossils, (vol. in, part 1, Geol. and Nat 

 Hist. Snrv. Canada. Montreal, March, 18&4, pp. 1-43, pis. i-viii.) 

 This part is ou sonu^ new, iniiJOi-ri'ctiy characterized, or previously 

 unrecorded species of fossils from the Guelph Formation of Ontario. 

 The lists of the fossils of this formation in the "Geology of Canada" 

 contain the follmvin<jf names, for the species of which no descriptions or 

 figures have ever been published, and which, consequently, it has been 

 impossible to recognize: Columnaria galtensis, DiphyplnjUum irregulare, 

 Amplexm lascatus, Cycloncma (jaltensiH, C. Thysbe, C. P.sychc, C. depreasa, 

 Pleurotomaria huronensit, Murchisonia tullia, Gyrtoceras jonesi. The 

 present author describes two new genera, Fyoiostyl us nnd Codonochcilus, 

 and the following new species: Pycnostylus guelphenais, 1\ cleyans, Mono- 

 mereUa ovata, M. ovata var. lata, Goniophora crassa, Anodontopsis con- 

 linna, Tlionia gaUensis, T. f costulata, i^uhuUtes compactus, Codoncheilus 

 striatum, Trochonema inornaium, HtraparoUus crenulatan, I'leuroiomaria 

 cyclostonia, P. durhamensis, Murchisonia hespelerensis, M. constricta, M. 

 soluta, M. tropidophora, Tryblidium canadense, Scenella conica, EccuUom- 

 phalus circinains, Ascaceras townsendi, Eurypterus hoylei. 



Whitfield, li. P. — Xotice of some new Species of Primordial Fossils 

 in the Collections of the Museum, and Corrections of pieviously de- 

 scribed Species. (Bull. Amer. Mus. Xat. Hist., February, 1884, vol. 

 I, No. 5, pp. 139-154, pis. xiv and xv. New York.) 

 Mr. Whitfield thinks that the typical New York Potsdam is about 

 equivalent to the lower portion of the Wisconsin areas, and that the 

 Acadian beds of Canada and Vermont and perhaps the other Atlantic 

 areas are not appreciably different in age, but that the difference in 

 faunse is more the result of conditions ni)on which life depended than 

 a difference in time. Mr. Whitfield was probably unaware of the fact 

 that 3,000 feet of limestone without a break separate the Georgian 

 from the Potsdam fauna in Central Nevada. He describes the following 

 new species : Lingulepis minima, Orthisina orientalis, Nothozoe vermon- 

 tana, Conocephalites verrucosus, ArioneUus quadrangularis, Angelina 

 hitchcocJd, Dikellocephalus ? marcoui, Maclurea icadsworthi. 



Williams, H. S. — On the Fossil Faunas of the Upper Devonian along 

 the Meridian 7(P 30' from Tompkins County, New York, to Bradford 

 County, Pennsylvania. (Bull. U. S. Geol. Surv., vol. i, No. 3, pp. 

 55-86. Washington, 1884.) 

 This paper is the first of a series ; it contains an interesting discussion 



of the relative positions of the Upper Devonian faunas of the meridian 



of Ithaca, N. Y. Mr. Williams does, not always explain clearly where 



his stations, designated by numbers, are located. 



Williams, H. S.— The Si)irifers of the Upper Devonian. (Science, 



vol. Ill, pp. 374, 375. Cambridge, 1884.) 



The author criticises the stratigraphieal position assigned to some of 

 the fossil species in Report of Progress (i. 7, I'd Geol. Surv. of Pennsyl- 

 vania. 



