





NAPLES FAUNA IN WESTERN NEW YORK, PART 2 



433 



Diaphorostoma pugnus sp. nov. 



Page 338 



15 A specimen from the Melocrinus plantation above the 



Genundewa limestone 



Naples subprovince Blacksmith ravine, Bristol 



16 A specimen found attached to a Melocrinus calyx 



Chautauqua subprovince Fox's point, Lake Erie 



Genus palaeotrochus Hall 



Page 33s 



Palaeotrochus praecursor Clarke 



Page 335 



i 7-26 A series of views mostly of entire shells, preserved as replace- 

 ments in barite. In figure 24 will be observed the gradual 

 passage of the ornament from the concentric ridges of the 

 earliest whorls into the revolving rows of tubercles which on 

 adult whorls are crossed by fine concentric lines [fig. 26]. 

 Figure 20 is a calcareous specimen from the shales ; figure 25 

 an internal cast showing the internal excavation of the outer 

 lip. All are enlarged to two diameters except figure 18, X3 

 and figure 24, X5. 



Naples subprovince From the shales at Naples and 



the concretions on Honeoye lake 

 Chautauqua subprovince In the concretions at Java village 

 Genus pleubotomaria Defrance 



Page 316 



Pleurotomaria capillaria Conrad cognata mut. nov. 



Page 317 



27, 28 The exteriors of these shells. X2 



29 The lower portion of the final whorl. X4 



Naples subprovince Naples 



30 An incomplete specimen. x2 



Naples subprovince Lodi falls 



