234 



PISCES. 



crenulatus, Newberry & Worthen, 1866, 



Geo. Sur. 111., vol. 2, Keokuk Gr. 



[Sig. crenulated.] 

 (lenshumani, Newberry & Worthen, 1866, 



Geo. Sur. 111., vol. 2, Keokuk Gr. 



[Ety. proper name.] 

 denticulatus, Newberry & Worthen, 1866, 



Geo. Sur. 111., vol. 2, Keokuk Gr. 



[Sig. denticulated.] 

 elytra, Newberry & Worthen, 1866, Geo. 



Sur. 111., vol. 2, Keokuk Gr. [Ety. 



elytron, the wing covering as the elytra 



of the beetle.] 

 gibbosus, Newberry & Worthen, 1866, 



Geo. Sur. 111., vol. 2, Keokuk Gr. [Sig. 



gibbous.] 

 limax, Newberry & Worthen, 1866, Geo. 



Sur. 111., vol. 2, Burlington Gr. [Sig. 



a slug, dew-snail.] 

 nobilis, Newberry & Worthen, 1866, Geo. 



Sur. 111., vol. 2, Keokuk Gr. [Sig. 



noble, excellent.] 

 placenta, Newberry & Worthen, 1866, 



Geo. Sur. 111., vol. 2, Kinderhook Gr. 



[Sig. a cake.] 

 politus, Newberry & Worthen, 1866, Geo. 



Sur. 111., vol. 2, Keokuk Gr. [Sig. 



smooth.] 

 rugosus, Newberry & Worthen, 1866, 



Geo. Sur. 111., vol. 4, Coal Meas. [Sig. 



wrinkled.] 

 sulcatus, Newberry & Worthen, 1866, 



Geo. Sur. 111., vol. 2, Keokuk Gr. 



[Sig. furrowed.] 

 undulatus, Newberry & Worthen, 1866, 



Geo. Sur. 111., vol. 2, Keokuk Gr. 



[Sig. waved.] 

 HoLOPTYCHius, Agassiz, 1843, Recherches sur 



les Poissons Fossiles. [Ety. hohs, 



entire ; ptycJie, a wrinkle.] 

 americanus, Leidy, 1856, Jour. Acad. Nat. 



Sci., 2nd series, vol. 3, Catskill Gr. 



[Ety. proper name.] 

 nohilissimus, Agassiz, as identified by 



Hall, 1843, Geo. Rep. 4th Dist. N. Y., 



is described as H. americanus. 

 taylori. Hall, 1843, (Sauripteris taylori) 



Geo. Rep. 4th Dist. N. Y., Catskill 



Gr. [Ety. proper name.] 

 Homacanthus, Agassiz, 1845, Mon. Pois. Foss. 



Syst., Devonian. 

 gibhosm, see Amacanthus gibbosus. 

 rectm, see Marracanthus rectus. 

 Hybocladodus, St. John & Worthen, 1875, 



Geo. Sur. 111., vol. 6. [Ety. hybos, a 



hump ; Cladodus, a genus of fossil fish.] 

 compressus, Newberry & Worthen, 1866, 



(Helodus compressus) Geo. Sur. 111., 



vol. 2, Burlington Gr. [Sig. com- 

 pressed.] 

 intermedins, St. John & Worthen, 1875, 



Geo. Sur. 111., vol. 6, Keokuk Gr. 



[Sig. intermediate.] 

 nitidus, St. John & Worthen, 1875, Geo. 



Sur. 111., vol. 6, Chester Gr. [Sig. 



neat, pretty.] 



plicatilus, St. John & Worthen, 1875, 



Geo. Sur. 111., vol. 6, Burlington Gr. 



[Sig. in small folds.] 

 tenuicostatus, St. John & Worthen, 1875, 



Geo. Sur. 111., vol. 6, Keokuk Gr. 



[Sig. finely lined.] 

 Lambdodus, St. John & Worthen, 1875, Geo. 



Sur. 111., vol. 6. [Ety. Lambda, a 



Greek letter; odous, a tooth.] 

 calceolus, St. John & Worthen, 1875, Geo. 



Sur. 111., vol. 6, Burlington Gr. [Sig. 



a sandal, a slipper.] 

 calceolus var. robustus, St. John & Wor- 

 then, 1866, Geo. Sur. 111., vol. 6, Keo- 

 kuk Gr. [Sig. robust.] 

 costatus, St. John & Worthen, 1875, Geo. 



Sur. 111., vol. 6, Burlington Gr. [Sig. 



ribbed.] 

 hamulus, St. John & Worthen, 1875, Geo. 



Sur. 111., vol. 6, Chester Gr. [Sig. a 



small hook.] 

 reflexus, St. John & Worthen, 1875, Geo. 



Sur. 111., vol. 6, Chester Gr. [Sig. 



turned back.] 

 transversus, St. John & Worthen, 1875, 



Geo. Sur. 111., vol. 6, St. Louis Gr. 



[Sig. crosswise.] 

 Lecracanthus, St. John & Worthen, 1875, 



Geo. Sur. 111., vol. 6. [Ety. lehroi, the 



antlers of a stag ; akantha, a spine.] 

 unguiculus, St. John & Worthen, 1875, 



Geo. Sur. 111., vol. 6, St. Louis Gr. [Sig. 



furnished with claw-like processes.] 

 Leiodus, St. John & Worthen, 1875, Geo. 



Sur. 111., vol. 6. [Ety. lews, smooth; 



odous, tooth.] 

 calcaratus, St. John & Worthen, 1875, 



Geo. Sur. 111., vol. 6, Burlington Gr. 



[Sig. spurred, spur-shaped.] 

 calcaratus var. grossipunctatus, St. John 



& Worthen, 1875, Geo. Sur. 111., vol. 



6, Keokuk Gr. [Sig. thick-punctured.] 

 Leptacanthus, Agassiz, 1837, Poiss. Foss., vol. 3, 



[Ety. leptos, slender; akantha, spine.] 

 occidentalis, see Acondylacanthus occi- 



dentalis. 

 Leptophractus, Cope, 1873, Proc. Acad. Nat. 



Sci. Phil. [Ety. leptos, thin ; phraktos, 



walled.] 

 obsoletus. Cope, 1873, Proc. Acad. Nat. 



Sci. Phil., Coal Meas. [Sig. obsolete.] 

 Liognathus, Newberry, 1873, Ohio Pal., vol. 



1. [Ety. lis, smooth; gnathos, the jaw.] 

 spatulatus, Newberry, 1873, Ohio Pal., 



vol. 1, Corniferous Gr. [Sig. spatulate, 



blade-shaped.] 

 LiSGODUs, St. John& Worthen, 1876,Geo. Sur. 



111., vol. 6. [Ety. lisgos, a spade ; odous, 



a tooth.] 

 curtus, St. John & Worthen, 1875, Geo. 



Sur. 111., vol. 6, Burlingtoft Gr. [Sig. 



short.] 

 selluliformis, St. John & Worthen, 1875, 



Geo. Sur. 111., vol. 6, St. Louis Gr. 



[Sig. like a little seat or stool.] 

 serratus, St. John & Worthen, 1875, Geo. 



Sur. 111., vol. 6, Burlington Gr, [Sig. 



saw-edged.] 



