NAPLES FAUNA IN WESTERN NEW YORK, PART 2 



345 



The specimen is from Union Corners (Naples subprovince) in associa- 

 tion with the preceding species. 



Gephyroceras cf. domanicense Holzapfel 



See Gephyroceras domanicense Holzapfel, Memoires du comite geolo- 

 gique. 1899. v. 12, no. 3, p. 32, pi. 5, fig. 8, 9, 11, 13 



This comparison is purely a suggestion of identity based on externals. 

 Specimens which have come into our hands since the preparation of the 

 account of the goniatites of this fauna, indicate a Gephyroceras of exterior 

 strikingly similar to the shell cited. This is expressed in the course of the 

 finely undulated concentric ornament, the striae being clustered into eleva- 

 tions which form distant, low pilae (cf. Holzapfel's fig, 8). The whorl is 

 depressed lenticular with concave, peripheral grooves, broad, concave venter 

 with elevated edges. As we know nothing yet of the suture, this com- 

 parison remains inadequate, but there is little likelihood of wide depar- 



Fig. 15 Gephyroceras cf. domanicense Forestville N. Y. 



ture herein from the typical Gephyroceran suture. The New York species 

 is somewhat more closely umbilicated than the Timan shell. [See p.379] 

 The specimens are all from the Angola shales at Forestville (Chautau- 

 qua subprovince) associated with Loxopteria dispar, Euthydesma 

 sub textile, Praecardium vetustum etc. 



