PALEONTOLOGIC CONTRIBUTIONS 69 



Horizon and locality. Lowest Bertie waterlime at Farmer's 

 Mills, near Utica. It is there associated with Eusarcus van- 

 in g e n i and Orbiculoidea molina. Both brachiopods 

 are extremely abundant on the slabs before us, demonstrating that 

 the beds where the peculiar Eusarcus vaningeni occurs 

 are undoubtedly of marine origin. 



Remarks. Lingula vicina is readily distinguished from 

 L. testatrix which occurs higher up in the Bertie waterlime 

 at Litchfield, by its smaller size, rounded anterior extremity and 

 greater height of shell. 



Lingula subtrigona nov. 

 Plate 24, figures 9 and 10 



Description. Shell of medium size ; very flat ; of broadly sub- 

 triangular outline ; length and width equal ; greatest width one- 

 third of length from anterior margin. Shell obtusely angular in 

 posterior half with straight margins and rounded apex; well 

 rounded in anterior half where lateral and anterior margins form 

 a broad, semioval curve. Pedicle valve with slightly elevated broad 

 beak, which is a little forward of posterior margin and from it a 

 low elevation extends halfway to the anterior margin. The brachial 

 valve is entirely flat. The cardinal region shows a faint pedicle 

 groove only on the inside. The surface is remarkable for the 

 wide, flat, fairly smooth interspaces, with very faint growth-lines, 

 between sharply elevated, filiform varices. Where the shell is 

 exfoliated, radiating lines are seen. 



Horizon and locality. Manlius limestone on Frontenac island 

 near Union Springs. According to Mr Luther's label, the speci- 

 mens are from the " waterlimes below horizon of blue limestone 

 on Frontenac island, from farm of John Wooley, east of road from 

 Union Springs to Cross Roads Station, 3 miles south of latter." 



Remarks. We have only two specimens of this Lingula, which 

 is at once distinguished from the congeners in both the Manlius 

 and Bertie waterlimes by its broad, subtriangular shape and the 

 character of the surface sculpture. It is, however, very similar 

 to the L. perovata Hall, from the Clinton beds. 



Lingulasma (?) elongatum nov. 



The writer has, in New York State Museum Bulletin 162, pages 

 41 and 42, recorded from the Schenectady beds — a shaly develop- 

 ment of the Trenton limestone in the lower Mohawk and middle 



