228 



PISCES. 



Agassizodus, St. John & Worthen, 1875, 



Geo. Sur. 111., vol. 6. [Ety. proper 



name; odous, tooth.] 

 corrugatus, Newberry & Worthen, 1870, 

 (Orodus corrugatus) Geo. Sur. 111., 



vol. 4, Coal Meas. [Sig. wrinkled.] 

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



Sur. 111., vol. 6, Coal Meas. [Sig. 



pretty, neat.] 

 variabilis, Newberry & Worthen, 1870, 



(Lophodus variabilis) Geo. Sur. 111., 



vol. 4, Coal Meas. [Sig. variable.] 

 virginianus, St. John & Worthen, 1875, 



Geo. Sur. 111., vol. 6, Coal Meas. [Ety. 



proper name.] * 



Amacanthus, St. John & Worthen, 1875, 



Geo. Sur. 111., vol. 6. [Ety. anakanthos, 



destitute of prickles.] 

 gibbosus, Newberry & Worthen, 1866, 



(Homacanthus gibbosus) Geo. Sur. 111., 



vol. 2, St. Louis Gr. [Sig. gibbous.] 

 Amblypterus, Agassiz, 1833, Recherches sur 



les Poissons Fossiles. [Ety. amblys, 



blunt ; pteron, fin.] 

 macropterus, Agassiz, 1835, Recherch. 



Poiss. Foss., vol. 2, Coal Meas. [Sig. 



large-finned.] 

 Anaclitacanthus, St. John & Worthen, 



1875, Geo. Sur. 111., vol. 6. [Ety. 



anaklitos, leant upon ; aJcantha, a spine.] 

 semicostatus, St. John & Worthen, 1875, 



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



[Sig. half-ribbed.] 

 Antliodus, Newberry & Worthen, 1866, 



Geo. Sur. 111., vol. 2. [Ety. antlia, a 



depression; odous, a tooth.] 

 cucullus, Newberry & Worthen, 1866, 



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



a covering.] 

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



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



slender.] 

 minutus, Newberry & Worthen, 1866, 



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



small.] 

 mucronatus, Newberry & Worthen, 1866, 



Geo. Sur. 111., vol. 2, St. Louis Gr. 



[Sig. sharp-pointed.] 

 parvulus, Newberry & Worthen, 1866, 



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



[Sig. very small.] 

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



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



very ovate.] 

 robustus, Newberry & Worthen, 1866, 



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



robust.] 

 politus, Newberry & Worthen, 1866, Geo. 



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



smoothed.] 

 sarcululus, Newberry & Worthen, 1870, 



Geo. Sur. 111., vol. 4, Burlington Gr. 



[Sig. a Uttle hoe.] 

 similis, Newberry & Worthen, 1866, 



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



[Sig. similar.] 



simplex, Newberry & Worthen, 1866, 



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



[Sig. simple.] 

 sulcatus, Newberry & Worthen, 1866, 



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



furrowed.] 

 Apedodus, Leidy, 1856, Jour. Acad. Nat. 



Sci., 2d ser., vol. 3. [Ety, apedos, level, 



smooth; odous, tooth.] 

 priscus, Leidy, 1856, Jour. Acad. Nat. 



Sci., 2d ser., vol. 3, Chemung Gr. 



[Sig. ancient.] 

 AspiDicHTHYS, Newberry, 1873, Ohio Pal., 



vol. 1. [Ety. aspis, a shield; ichthys, 



a fish.] 

 clavatus, Newberry, 1873, Ohio Pal., vol. 



1, Portage Gr. [Sig. club-shaped.] 

 AspiDODUS, Newberry & Worthen, 1866, Geo. 



Sur. 111., vol. 2. [Ety. aspis, a shield ; 



odous, tooth.] 

 convolutus, Newberry & Worthen, 1866, 



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



rolled as it were together.] 

 crenulatus, Newberry & Worthen, 1866, 



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



crenulated, zigzag.] 

 Asteracanthus, Agassiz, 1837, Recherches 



sur les Poissons Fossiles. [Ety. aster, 



star ; akantha, spine.] 

 siderius, Leidy, see Bythiacanthus siderius. 

 Asteroptychius, Agassiz, 1843, Recherches 



sur les Poissons Fossiles. [Ety. aster, 



a star; plyche, a wrinkle.] 

 bellulus, St. John & Worthen, 1875, 



Geo. Sur. III., vol. 6, Coal Meas. [Sig. 



pretty, neat.] 

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



Sur. 111., vol. 6, Keokuk Gr. [Ety. 



proper name.] 

 St. ludovici, St. John & Worthen, 1875, 



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



[Ety. proper name.] 

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



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



slender.] 

 triangularis, Newberry & Worthen, 1870, 



Geo. Sur. 111., vol. 4, Burlington Gr. 



[Sig. triangular.] 

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



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



ancient.] 

 AsTEROSTEUs, Newberry, 1875, Ohio Pal., 



vol. 2. [Ety. aster, a star; osteon, a 



bone.] 

 stenocephalus, Newberry, 1875, Ohio Pal., 



vol. 2, Corniferous Gr. [Sig. narrow- 

 headed.] 

 Batacanthus, St. John & Worthen, 1875, 



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



prickly bush ; akantha, a spine.] 

 baculiformis, St. John & Worthen, 1875, 



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



[Sig. staff-shaped.] 

 stellatus, Newberry & Worthen, 18 66, 



(Drepanacanthus (?) stellatus) Geo. 



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



starred.] 



