ART, 5 BIBLIOGRAPHY OF THE CON'ODONTS HOLMES 27 



Genus PRIONIODINA Ulrich and Bassler, 1926 



PRIONIOOmA SEPAKANS, new species 



Plate 9, figs. 16, 17 



Tooth consisting of a slender curved bar bearing fourteen or more 

 rather short, flattened denticles, separated from each other by more 

 than their own diameter and with a main cusp about twice the size 

 of a denticle, developed at the angle of curvature. The cusp is 

 slightly extended below the bar into a protuberance. The denticles 

 are very similar to each other and to the cusp in shape. 



Cotypes.—Cdit. No. 11443, U.S.N.M. 



PRIONIODINA UNDULATA, new species 



Plate 9, fig. 18 



This bar is slightly arched along the posterior extension, but is 

 sharply deflected at the cusp, forming a right angle. The main cusp 

 is very long, stout, well rounded, and bluntly pointed. The denticles 

 on both sides are similar to the cusp but they are about one -third the 

 size and they vary somewhat as to length. The denticles farthest 

 from the cusp are upright but the nearer they approach the cusp, 

 the more they bend toward this great central tooth. A space a little 

 less than the width of the denticles separates them. 



Bolotype.—Q^X. No. 11444, U.S.N.M. 



Genus BRYANTODUS Uhick and Bassler, 1926 



BRYANTODUS INEQUALIS, new species 



Plate 10, figs. 1, 2 



The bar is traversed for half its length by a median ridge. The 

 other half is very flat, curling slightly at the end. A broad, short, 

 sharply pointed, and slightly recurved cusp rises at an obtuse angle 

 from the center of the bar. The cusp is about four times as broad as 

 the denticles at its base. Posterior to the main cusp the denticles are 

 short and slightly separated. On the anterior side the denticles are 

 about twice this length, although they gradually become shorter as 

 they approach the end of the bar. As the denticles become shorter 

 they are at right angles with the bar, whereas the long ones near the 

 cusp are noticeably curved toward that tooth. 



The unequal size of the two sets of denticles marks this species. 



Gotypes.—C&t. No. 11445, U.S.N.M. 



BRYANTODUS INCLINATUS, new epecies 



Plate 10, fig. 3 



Tooth triangular in outline, consisting of a broad flat sharp pointed 

 main cusp, inclined to the bar, followed posteriorly by at least 10 



