Sb KANSAS UNIVERSITY QUARTERLY. 



series of vertical wrinkles near the base, usually irregular. A single 

 pair of large, acuminate lateral denticles, slightly divergent, often 

 incompletely separated from the principal cone. Root with a con- 

 siderable inward prominence immediately below the base of the 

 crown." Woodward, 1. c. 



"A name given to very large, robust teeth with vertically wrinkled 

 crown and slightly divergent acuminate lateral denticles. There 

 are specimens in the British Museum from undetermined horizons 

 in the chalk of Kent, Surrey, and Sussex." Woodward. 



This species is unknown to me. Its occurrence in Kansas is given 

 on the authority of Cope. The horizon is evidently the Benton. 



L,(fiiiiiff luudffei. 



Lamna mudgei Cope, Cret. Vert. 207, pi. XII, ff. 11, 12 — Niobrara of Kansas, 

 Greensand of New Jersey. 



" Indicated by three teeth from the Niobrara epoch of Kansas and 

 one from the Greensand No. 4, from New Jersey. These teeth are 

 rather stout, especially at the base, and the crown is not very elon- 

 gate. The root is excessively i^rotuberant, projecting horizontally 

 beyond the convex side, and flat or truncate below the protuberance. 

 The enamel is entirely smooth. Length, 14 mm." 



This species is unknown to me, or unrecognizable from the 

 description and figures of the mutilated type specimens. 



Ij(( lit H a in (fcroi'Ii izft . 



La 'linn rnrwrorhiza Cope, Cret. Vert. 297, pi. XLII, ff. 9, 10; Woodward, Cat. 

 Foss. Fishes, Brit. Mus. I, .399 — Niobrara of Kansas, Albian of England, 

 Cenonian of S. E. Russia (Woodward). 



"Teeth of small size, elevated though robust, the maximum total 

 height being about 25 mm. Outer coronal face flat, or nearly so, with 

 a faint median longitudinal elevation, and often a few folds at the 

 base ; inner coronal face very convex, smooth ; cutting edges sharp : 

 a single pair of relatively large, narrow, acuminate lateral denticles, 

 divergent, also often marked at the base by minute vertical folds ; root 

 with a prominent inward projection below the base of the crown ; nutri- 

 tive foramen in a groove." 



The above description by Woodward is drawn from a European 

 specimen, while the type described and figured by Cope is from Ellis 

 county, Kansas, probably Niobrara. I do not know the species. 



LainiKf (0(7ouf<(sj>is ?), sp. Plate XII, fig. 5. 

 A single tooth from the Lower Cretaceous ( Kiowa shales, Clark 

 county), resembles the figure of Odontaspis kopingensis Davis, as 

 figured by that author ( Trans. Roy. Dubl. Soc. IV, XXXVI, fP. 27, 28), 

 except that it is smaller and has the base rather more prominent, more 

 triangular, and more pointed. The tooth has also resemblance to 



