POEC. 



728 



Poecilodus springeri, St. John & Worthen, Geo. Sur. 111., 



Vol. 7, 1883, p. 138, pi. 8, figs. 19^, 

 upper back left tooth, crown; hj 

 inside edge ; o, outside inro tied edge. 

 Sante F&, N. Mex., Subcarlonif- 

 erous. — XI, 



Poecilodus stludovici, St. John & Worthen, Geo. Sur. 111., 



XI 8 a 



S ct 



10 ai 



Vol. 7, 1883, p. 132, pi. 8, figs. 8a, mandible, with pair of back 

 teeth m place, resting on the granular bony support, right jaw, 

 showing joint at the end; front end of jaw mutilated, but it is 

 evident that whatever teeth it bore must have been extremely- 

 small ; 9^, upper back tooth, right jaw, crown; 10^, 5, <?, ditto^ 

 left jaw, crown, outer and inner edges; 11^, S, lower back right 

 tooth, crown and outer edge ; 12(z, 5, <?, ditto, crown, inner edge^ 

 and front side edge. Alton, 111. St Louis limestone. — XI. 

 Poecilodus varsoviensis, St. John & Worthen, Geo. Sur. 



111., Vol. 7, 1883, p. 131, pi. 8, 



figs. 13«, enlarged twice^ lower 



back left tooth; 14a, large ex- 



^t^^''% 'i ample crown of tooth; 5, inner 



VoLJ^ni.i edge- Warsaw, 111. Subcarhon- 



iferous limestone. — XL 



Poecilodus wortheni, St. John, Geo. Sur. 111., Vol. 7, 1888, 



^p3.a 14, a 



\A-\ 





Vol. 7,j}l.g. 



p. 136, pi. 8, fig. 18«, upper back left jaw fish tooth, seen from 

 above, partially restored in outline ; 5, cross profile, inner edge ; 



