228 



PISCES. 



Agassizodus, St. John & Worthen, 18 75, 



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



name; odoMS, tooth.] 

 corrugatus, Newberry & Worthen, 1870, 

 (Orodus corrugatus) Geo. Sur. 111., 



vol. 4, Goal 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 ; akaiilhii,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; orfous, a tooth.] 

 cucullus, Newbenv & 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 ct Worthen, 1866, 



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



small.] 

 mucronatus, Newberry i<; Worthen, 1866, 



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



[Sig. sharp-pointed.] 

 parvulus, Newberry & Worthen, 1866, 



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



[Sig. very small.] 

 perovalis, St. John & "\\'orthen, 1875, Geo. 



Sur. II!,, vol. 6, Warsaw Gr. [Sig. 



very ovate.] 

 robustus, Newberr\' & 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 little hoe.] 

 similis, Newberry & Worthen, 1866, 



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



[Sig. similar.] 



simplex, Newberry & Worthen, 1866, 

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

 [Sig. simple.] 

 sulcatus, Newberry & AVorthen, 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 ; odoits, 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; ichlhys, 

 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 ; 

 odoux, tooth.] 

 convolutus, Newberry & Worthen, 1866, 

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

 rolled as it were together.] 

 crenulatus, Newberry & Worthen, 1866, 

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

 crenulated, zigzag.] 

 Astekacaxtiius, Agassiz, 1837, Recherches 

 sur les Poissons Fossiles. [Ety. (ixter, 

 star ; akantha, spine.] 

 fideriiis, Leidy, see Bythiacanthus siderius. 

 AsTBEOPTYCHius, Agassiz, 1843, Recherches 

 sur les Poissons Fossiles. [Ety. cuter, 

 a star; ptyche, a wrinkle.] 

 bellulus, St. John & Worthen, 1875, 

 Geo. Sur. 111., 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. HI., 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; osteoi, a 

 bone.] 

 stenocephalus, Newberry, 1875, Ohio Pal., 

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

 headed,] 



Batacanthus, St. John & AVorthen, 1875, 

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

 prickly bush ; akantha, a spine.] 

 baculiformis, St. John & Worthen, 1875, 

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

 [Sig. staff-shaped.] 

 steliatus, Newberry & AVorthen, 1860, 

 (Drepanacanthus (?) steliatus) Geo. 

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

 starred.] 



