398 REPORT ON THE STATE CABINET. 



GENUS LOXONEMA, Phillips. 



LOXONEMA LEDA, N. S. 

 PLATE XV, FIG. 2. 



Loxonema sp., Hall; in Twentieth Report of N. Y. State Cab., 1st edit., p. 346. 1867. 



Shell turi-eted. Spire rapidly ascending, composed of eight or more 

 volutions, which are moderately convex on their surfaces, a little 

 more abruptly rounded below the middle, and very gradually 

 increasing in diameter ; suture close, not very distinctly marked ; 

 apicial angle about twenty degrees ; columellar side of aperture 

 elongated or pointed. Other characters of aperture unknown. 

 Surface characters obscure ; faint indications of transverse ridges 

 crossing the larger volutions exist in the matrix. 



This species was originally compared by me (loc. cit.) with L. Jitchi, to 

 which its imperfect cast bears some resemblance ; but a critical examina- 

 tion shows it to be a very distinct species. The species referred by Prof. 

 WiNCHELL to L. subulata is apparently identical with L. leda, judging from 

 a cast of the upper volutions communicated by him. It is, at any rate, 

 very distinct from L. subulata, the spire being much less rapidly ascending. 



Formation and Locality. — In limestone of the age of the Niagara group, 

 at Wauwatosa, Wisconsin, and Bridgeport, Illinois. 



GENUS SUBULITES, Conrad. 



SUBULITES VENTRICOS0S, HaLL. 



PLATE XV, FIG. 1. 



Subuliies ventricosa. Hall. Palaeontology of New York, II, p. 347, PL 83, fig. 7. 

 Siibulites brevis, W. & M. ; in Mem. Bos. Soo. Nat. His., I, p. 100, PI. ii, flg. 19. 1865. 



This species occurs at Wauwatosa ; received from Dr. H. Day ; and 

 also at Bridgeport, Illinois. 



GENUS BUCANIA, Hall. 



BUCANIA ANGUSTATA, HaLL. 

 Bucania angustata. Hall. Pateontology of New York, II, p. 349, PI. 84, fig. 6. 



A specimen undistinguishable from the species occurring at Gait, 

 Canada West, has been found at Racine, in Wisconsin. 



