320 



PISCES. 



kanthos, and its etymology is not ap.- 



parent unless it is from arna, together ; 



and kanthos, the felly of a wheel. 

 Asteroptychtus tenellus, St. John & 



Worthen (In press), Geo. Sur. 111., 



vol. 7, Up. Coal Meas. [Sig. young, 



delicate.] 

 Batacanthus (?) necis, St. John & Worth- 

 en (In press), Geo. Sur. 111., vol. 7, 



Keokuk Gr. [Sig. death] 

 Gatopterus macrurus is from the Triassie, 



and the specific name signifies long 



tailed. 

 Chitonodus, St. John & Worthen fin 



press), Geo. Sur. 111., vol. 7. [Ety. 



chiton, a smock or coat ; odous. a tooth.] 

 antiquus, St. John & Worthen (In press). 



Geo. Sur 111., vol. 7, Low. Burlington 



Gr. [Sig. ancient] 

 latus, Leidy. 1856 (Cochliodus latus), 



Trans. Am. Phil. Soc, vol. 11, p. 87. 



PI. 5, fig. 17, Keokuk Gr. [Sig. 



wide.] 

 liratus. St. John & Worthen (In press), 



Geo. Sur. 111., vol. 7, St. Louis Gr. 



[Sig. furrowed ] 

 rugosus instead of Poecilodus rugosus, 



P. ornatus and P. convolutns. 

 springeri, St. John & Worthen (In press), 



Geo. Sur. 111., vol. 7, Up. Burlington 



Gr. [Ety. proper name. J 

 tribulis, St. John & Worthen (In press), 



Geo. Sur. 111., vol. 7, Keokuk Gr. 



[Sig one of the same tribe.] 

 Cladodus occidentalis, Leidy, 1859, Proc. 



Acad Nat Sci., Up. Coal Meas. 



[Sig. western.] 

 Cochliodus is derived from kochlias, any- 

 thing spird; odous, a tooth. 

 crassus, Newberry & Worthen, is a syn. 



for Sancfalodus lasvissimus. 

 latus. refer to Chitonodus latus. 

 nitidus, Leidy. 1856, refer to Delto- 



ptychius nitidus. 

 nobilis, Newberry & Worthen, syn. for 



Chitonodus latus. 

 obliquus, St. John & Worthen (In press), 



Geo. Sur. Ill , vol. 7, St. Louis Gr. 



[Sig. oblique ] 

 occidentalis, Leidy, 1856. refer to Del- 



todus occidentalis. 

 validus, St. John & Worthen i In press), 



Geo. Sur. 111., vol. 7, Kaskaskia Gr. 



[Sig. strong, stout] 

 vanhornii, St. John & Worthen (In 



press), Geo Sur. 111., vol. 7, St. Louis 



Gr. [Ety. proper name.] 

 Copodus pusillus, St. John & Worthen (In 



press), Geo. Sur. 111., vol. 7, Kaskas- 

 kia Gr. [Sig. very small.] 

 vanhornii, St John & Worthen (In press), 



Geo. Sur. 111., vol. 7, St. Louis Gr. 



[Ety proper name.] 

 Ctenacanthus buttersi, St. John & Worth- 

 en (In press), Geo. Sur. 111., vol. 7. 



[Ety. proper n me.] 

 cannaliratus, St. John & Worthen (In 



press), Geo. Sur. 111., vol. 7, Kaskas- 

 kia Gr. [Sig. reed furrowed.] 

 Ctenacanthus costatus, refer to Eunema- 



canthus costatus. 

 coxanus. St. John & Worthen (In press), 



Geo. Sur. 111., vol. 7, Keokuk Gr. 



[Ety. proper name.] 

 deflexus, St. John & Worthen (In press), 



Geo. Sur. 111., vol. 7, St. Louis Gr. 



[Sig. deflexed ] 

 harrisoni, St. John & Worthen (In press), 



Geo. Sur 111., vol. 7, St. Louis Gr. 



[Ety. proper name.] 

 pellensis, St. John & Worthen (In press), 



Geo. Sur. 111., vol. 7, St. Louis Gr. 



[Ety. proper name.] 

 Ctenodus dialophus, Cope, 1878. Pal. 



Bull. No. 29, Permian. [Sig through 



the neck.] 

 fossatus, Cope, 1S77, Proc. Am. Phil. 



Soc, Permian. [Sig. dug out..] 

 gurleianus. Cope, 1877. Proc. Am. Phil. 



Soc, Permian. [Ety. proper name.] 

 periprion. Cope. 1878, Pal Bull. No. 29, 



Permian. [Sig. a round saw] 

 porrectus, Cope, 1878. Pal. Bull. No. 29, 



Permian. [Sig. prolonged.] 

 pusillus, Cope, 1877, Pal. Bull. No. 26, 



Permian [Sig. very small.] 

 Ctenoptychtus digit 'tus. Leidy, 1856, 



Trans. Am. Phil. Soc , vol. 11, St. 



Louis Gr. [Sig digitated.] 

 semicircularis, refer to Peripristis senii- 



circularis. 

 Deltodopsis, St. John & Worthen (In 



press), Geo. Sur. Ill , vol. 7. [Ety. 



from the resemblance to the genus 



Beltodus.] 

 afflnis, St. John & Worthen (In press), 



Geo. S"r. 111., vol. 7, Warsaw Gr. 



[Sig. near to.] 

 angusta, Newberry & Worthen, instead 



of Deltodus angustus. 

 bialveata, St. John & Worthen (In 



press), Geo. Sur. 111., vol. 7. Up. 



Burlington Gr [Sig. twice hollowed 



out.] 

 convexa, St. John & Worthen (In 



press), Geo. Sur. 111., vol. 7, Up. 



Burlington and Keokuk Gr. [Sig. 



convex.] 

 convoluta, St. John & Worthen (In 



press), Geo. Sur. 111., vol. 7. Up. 



Burlington Gr. [Sig. convoluted.] 

 exornata, St. John & Worthen (In 



press), Geo Sur. 111., vol. 7, Warsaw 



Gr. [Sig. adorned.] 

 keokuk, St. John & Worthen (In press), 



Geo. Sur 111., vol. 7, Keokuk Gr. 



[Ety. proper name ] 

 stludovici, St. John & Worthen (In 



press), Geo. Sur. III., vol. 7, St. Louis 



Gr. [Ety. proper name ] 

 Deltodus alatus, Newberry & Worthen, 



syn. for Chitonodus latus. 

 angularis. Newberry & Worthen, syn. 



for Orthopleurodus carbonarius. 

 angustus, refer to Deltodopsis angusta. 



