382 NEW YORK STATE MUSEUM 



subannulate shell like O. Ontario or identical with a form from the west- 

 ern subprovince. 



Spathiocaris occurs in great abundance in the bituminous shales and 

 lime banks of the Domanik, just as it does, and in like form, in the black 

 shales and sandy shales and flags of the Portage beds. It is noteworthy 

 that all the forms figured by Holzapfel take on the outline of S. e m e r- 

 s o n i, which is the prevailing form in the Portage, though in New York we 

 find the Cardiocaris outline as well as the doubly cleft shields, Dipterocaris 

 (occurring also at Biidesheim), and Holzapfel puts forward a strong argu- 

 ment in favor of the view that these bodies have no organic connection with 

 the goniatites. 



This cephalopod fauna is accompanied by lamellibranchs and gastro- 

 pods, to which less attention has been thus far specially given. Keyserling 

 described Cardiola [Ontaria] tenuistriata Munst., C. [O.] con- 

 c e n t r i c a v. Buch, C. [O.] articulata Munst., C. [B u c h i o 1 a] retro- 

 stria t a, Bellerophon tuberculatus d'Orb. (cf. B. koeneni), 

 Naticopsis domanicensis Keys. (cf. Diaphorostoma pug- 

 nus) and Sigaretus uchtae Keys. 



SUMMARY 



1 The fauna of the A T aplcs beds, as the term has been heretofore 

 employed and as used in the title of this work, is a congeries integrated by 

 its organic characters and its bionomic relations from appearance to vanish- 

 ment and unitive in its essentiality. With contemporaneous faunas of the 

 Appalachian gulf it has, in its purity, no organic relation direct or sequen- 

 tial, but at the boundaries of the province may become implicated with the 

 latter by the incident of geographic contiguity. 



2 This Naples fauna as a whole is geographically characterized with 

 greater accuracy as that of the Genesee province. In its integrity it repre- 

 sents the Eurasian Upper Devonic faunas above the horizon of Hypo- 

 thyris cuboides (Tully limestone of New York) and below the 

 brachiopod fauna with culminating Spirifer disjunctus. In the 

 New York sections, however, it is followed by and is in part contempo- 



