234 



PISCES. 



crenulatus, Newberry & Worthen, 1866, 

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

 [Sig. crenulated.] 

 I lenshumani, Newberry & Worthen, 1866, 

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

 [Ety. proper name.] 

 denticulatus, Newberry & Worthen, 1866, 

 Geo. Sur. Ill, 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, Newberi-y & Worthen, 1866, Geo. 

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

 smooth.] 

 rugosus, Newberry & Worthen, 1866, 

 Geo. Sur. Ill, 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. holos, 

 entire ; ptyclie, a wrinkle.] 

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

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

 [Ety. proper name.] 

 nobilisumus, 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. 

 fjibbosus, see Amacanthus gibbosus. 

 rerlux, see Marracanthus rectus. 

 Hybocladodus, St. John & Worthen, 1875, 

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

 hump ; Cladodus, a genus of fossil fish.] 

 compressus, Newberry & Worthen, 1866, 

 (Helodus compressus) Geo. Sur. 111., 

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

 pressed.] 

 intermedius, 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.] 

 Lecbacanthus, St. John & Worthen, 1875, 

 Geo. Sur. 111., vol. 6. [Ety. lekrm, 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. feios, 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.] 

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

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

 occidentalis, see Aeondylacanthus oCCi- 

 dentalis. 

 Lbptophractus, Cope, 1873, Proc. Acad. Nat. 

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

 walled.] 

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

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

 LioGNATHus, Newberry, 1873, Ohio Pal., vol. 

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

 spatulatus, Newberry, 1873, Ohio Pal., 

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

 blade-shaped.] 

 LiSGODus, St. John & Worthen, 1875,Geo. Sur. 

 111., vol. 6. [Ety. lisgoa, a spade ; odoxu, 

 a tooth.] 

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

 Sur. 111., vol. 6, Burlington 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.] 



