REPORT OF THE STATE PALEONTOLOGIST I903 259 



T. gyracanthus (Eaton) 



This very characteristic Manlius fossil is very abundant both in the 

 lower and upper portions of this formation. In one or two narrow 

 zones of the Upper Manlius it practically occupies the bed to the 

 exclusion of all else. The shell is normal in its development. 



Coniilaria pyramidalis var. jervisensis n. var. 

 The specimens identified with this species are from the Upper 

 Oriskany. They agree fully with Hall's original description of 

 those from the shaly Helderbergian beds below, with the exception 

 that on our shells the transverse striae are twice as numerous as on 

 the typical species. Near the apex there are 20 striae to three lines 

 while on the rest of the shell there are 30. Hall^ gives 15 or 16 in 

 three lines but says that at intervals near the aperture they are some- 

 times more crowded. Here the crowding has become the normal 

 condition. The dimensions of a specimen incomplete posteriorly are 

 22mm in length, 9 mm in width at aperture. 



CEPHALOPODA 



Cyrtolites? expansus Hall 

 Five or possibly six specim.ens from the Upper New Scotland are 

 all smaller than those described by Professor Hall.^ The largest 

 measures 15mm by 11 mm by i6mm in width and length at aperture 

 and length from apex to anterior portion of aperture respectively. 

 The carination is quite prominent and two of the specimens show 

 concentric striae. Only one specimen gives indication of a broadly 

 expanded aperture. 



Orthoceras helderbergiae ? Hall 

 The internal mold from the Coeymans identified provisionally with 

 this species agrees closely with the short description given by Pro- 

 fessor Hall.3 



Orthoceras sp. 

 One internal mold, i^ inches long by % inch wide at the larger 

 end by ^ inch at the smaller end, found in the Lower New Scotland, 



^Pal. N. Y. 3:347. 



»Pal. N. Y. 3:479, pl. 114- 



•Pal. N. Y. 3:345. 



