342 NEW YORK STATE MUSEUM 



sttxiolina Karpinsky 

 Styliolina fissurella Hall 

 Tentaculites fissurella Hall, Geology of New York; rep't on fourth district. 



1843. p. 182. 

 Styliola fissurella Hall, Paleontology of New York. 1879. v - 5> P* 2 > P- 1 7^> 



pi. 3iA, fig. 1-30 

 Styliola (Styliolina) fissurella Clarke, U. S. Geol. Sur. Bui. 16. 1885. 

 p. 14-17. 57 

 In the work last cited I have referred to the vast abundance of this 

 little pteropod, which constitutes the mass of the Styliola or Genundewa 

 limestone, and permeates the kramenzel Goniatite limestone above and all 

 concretionary and nodular masses in the formation. It is rarer in the shale 

 beds, but at times their surfaces are crowded with these needlelike bodies. 

 The character of these deposits has been discussed on a preceding page, 

 and the presence of these fossils in mass constitutes one of the striking 

 features of the black mud facies of this fauna wherever found. 



Tentaculites gracilistriatus Hall 

 Tentaculites gracilistriatus Hall, Paleontology of New York. 1879. v - 5 

 pt 2, p. 173, pi. 31, fig. 12, 13; pi. 31A, fig. 37-47 



This species, characterized by low, distant annulations and fine radial 

 lines, occurs occasionally in association with Styliolina fissurella. 

 Karpinsky 1 regards the species as synonymous with Tent, acuarius 

 Richter. It is undeniably identical with T. multiformis Sanclb. from 

 the Cypridina shales of YYeilmunster. 2 



Habitat. Genesee province; Naples subprovince. In the Styliola 

 limestone on Canandaigua lake and the concretions in the gray shales at 

 Naples. 



'Die foss. Pteropoden am Ostabhange d. Urals. Acad. St Petersbourg. Mem. Ser. 

 7. 1884. v. 32, no. 1, p. 



Verstein. des Rhein. Schichtensyst. in Nassau, p. 249, pi. 21, fig. 11. 



