ii!3 Bulletin 13 11 



A Description of the Fossils from Near Fort Hunter. 



New York* 



ECCL X lOMPHA L I rS Por tlock 



Ecculiomphalus multiseptarius, n. s., PI. 15, figs, i, 2, 3. 4 



Shell discoid, loosely coiled, volutions two or more, slender 

 and gradually expanding until, in a specimen 20 mm. in diameter, 

 the outer coil is 6 mm. in diameter; the transverse se6lion of the 

 outer coil is subovate with a tendency to carination on the outer 

 edge. The internal stru(5lure,,seen in weathered specimens, is at first 

 puzzling. The well developed partitions present, in the natural 

 sections, the appearance of a cephalopod. This is well illustrated 

 by Plate 15, figure 2; the irregularity and great curvature of the 

 partitions distinguish it from that class. A number of small 

 specimens averaging 5 mm. in diameter are probably young forms 

 of this species. 



The specimens at hand differ ixo\\\ E. priscus, Whitfield, in 

 the more gradual increase in the size of the coils, in the absence 

 of liration, and in the presence of partitions. These last two 

 charadleristics may, however, be due to the state of preservation. 

 This shell differs from all others to such an extent that it is neces- 

 sary to refer it to a new species. 



Diameter of a medium specimen, 20 mm.; of a young 

 shell, 5 mm. 



Locality. — Bed V 2, near F^t. Hunter. 



*A11 the fossils herein described and figured are in the Taleontolog- 

 ical Museum of Cornell Universitv. 



