2S KAvsAs uyrrEBsiTY :/rA?.rz2^Ly. 



~JLi^- - : : -ZzZ.ir ;r nxe pz-tts of pavement 



teet- - : r. 



Ccelodu^ brownii. Pla:e \T, fig. 1^. 

 Cixlodui hrournii Cope. JonrE. Acad- iXat. ScL Phil. IX, M7, pi. XX, f. 19. 



A "-" ^^ - - - the left ! ~-T " -~ - r' vTiiTig two rows of teeth, the 

 -ner. T_ : ^^tis preserved, on the inner 



row, neariy < - ^' ui len^in ^ srs teeth of the middle 



row. ' - -^' ' . _ave the crow:_- ^:T:--rved. Cope's type had 



onlv r . external rows, and none of the teeth had well- 



preserved crowns. T.- reth Srrin. to corresxx)nd exactly in 



size -^'r * - typres. 



T' er side the ects as a rather broad trongh, with 



. ^rently broader posteriorly than anteriorly. Its width 



Lt-- -.- -^-^-: -^~- great as the width of the inner row of teeth. The 

 inner teeth are lai^e, their width eqnal to nearly half their length. 

 The snrface of the crowns is smooth and convex, more so antero- 

 posteriorly than transversely. The middle row has the teeth placed 

 a little obliqnely to the others, and the surface is more flattened trans- 

 versely in the middle. The axes of the crowns of the two rows are 

 placed at a distinct angle with each other. 



Length of four teerb . :r::er rz— .36 mm. 



Transverse diam.e:- row 17 " 



Length of five te>r:_ . . - ; _ .31 " 



Transverse diameter of crowns, middle row 12 " 



Thickne^ of jaw, at middle row of teeth 22 " 



Ti.e specimen was collected from the Kiowa shales near Belvldere, 

 by Mr. C. X. aould. 



Cffloffiis sfn iif.oni. D. 5p. Plate VI, fig. 12: plate VIII, fig. 6. 



A fragment of the right lower jaw, containing two perfect crowns 

 of the internal row, together with the bases of four teeth of the middle 

 row, evidently represents a species distinct from the previous one. 

 The teeth are much smaller in .size, more elongated and distinctly 

 kidney-shaped, the ends narrowed. The surface is smooth, strongly 

 convex antero-]x>steriorly, and gently so from side to side. The jaw is 

 much le.s5 robu.st than in the preceding species. 



Transverse diameter of tooth, internal row 14 mm. 



Antero- posterior diameter of same .5} '• 



Length of four teeth, middle row 17 " 



Transverse diameter of tooth, middle row 11 " 



The middle teeth .seem to be larger in proportion to those of the 

 internal series than in the preceding .species. Kiowa shales. 



