N. A. INVEKTKBRATE PALAEONTOLOGY. 717 



Tweuty six uew species of invertebrates are described in this paper, 

 which is divided under the following heads, viz : 



(1) Bibliography of th& formations here discussed, viz, the Genesee, 

 the Naples, the Portage, and the High Point Chemung rocks of New 

 Yoik. 



(2) The Petrographic and Palseontologic Chai-acters of the Genesee 

 Ueds. 



(3) Review of the Fauna and Flora of the Genesee Shales. Here the 

 following new species are described : Goniatites nodifer, Beyricliia Da- 

 gon, Goniatites asfarte, Orthoeeras Stebos, 0. Mephinto, 0. Asynodeus, 

 Platyostoma Belial^ Loxonema (?) Molocli, Modiomorpha (?) Ghemos, Spiri- 

 fcra BelpJiegor, IS. Pluto, Leiorynchus (?) Hecate. 



(4) The Petrographic and PalsBoutologic Characters of the Naples 

 Beds. 



(5) Review of the Fauna and Flora of the Nai)les Beds. Here the 

 following new species are described : Geratiocaris simplex, G. Beecheri, 

 Echinocaris Whitjieldi, Goniatites LutJieri, Orthoeeras aciculoides, 0. On- 

 tario, 0. Jilosum, Bellerophon incisus, Trochus {Palceotrochus) proicursor, 

 Platyostoma (?) minutissimum, Loxonema i^oe, Hyolithes Napolis, Lingula 

 triquetra, Aulopora annectens. 



(6) The Petrographic and Palaeontologic Characters of the Portage 

 Beds. 



(7) A List of the Fossils occurring in the Genesee, Naples, and Portage 

 Beds of Ontario County, with the names of species heretofore identified 

 Irom the horizons elsewhere in the State of New York, but not as yet 

 known within this district. From these tables he concludes that the 

 Naples shales have no such palseontologic relation to the rocks of the 

 Chemung period as to justify the union of them with these rocks; that 

 their fauna and flora is more closely allied to those of the Hamilton 

 shales, and that therefore these beds are to be regarded either as con- 

 stituting the uppermost member of the Hamilton period or, together 

 with the Genesee shales, representing a distinct geological epoch. The 

 more probable conclusion is that these two groups of strata represent 

 the epoch of the lower Upper-Devonian in Western New York. 



(8) Fauna of Chemung Beils at High Point. It is unfortunate that 

 six of the new species described are not illustrated in any manner. 



Claypole, E. W. — On the Vertical Range of certain Fossil Species in 

 Pennsylvania and New York. Amer. Nat., vol. xix, pp. 644-654. 

 July, 1885. Philadelphia. 



(1) Remarks on certain criticisms by Prof. James Hall, of Albany, in 

 the preface to volume G7 of the Pennsylvania reports, on the palsonto- 

 logical portion of the work in the volume. Mr. Claypole states that 

 there is no doubt that in Perry County spirifers, unbroken and with both 

 valves in contact, are found about 1 ,000 feet above red sandstone beds 

 holding the scales of Holoptychius or Bothriolepis or both. (2) The au- 

 thor states that Spirifera disjuncta, S. mesocostalis, S. mesostrialis, though 

 evidently characterizing, probably, in some places, by their abundance, 



