CRUSTACEA. 



215 



Crepicephalus, Owen, 1852, Geo. Sur. Wis., 



Iowa & Minn. [Ety. krepis, a horse- 

 shoe ; kephale, head.] 

 miniscaensis, Owen, 1852, Geo. Sur.Wis., 



Iowa & Minn., Potsdam Gr. [Ety. 



proper name.] 

 montanensis, Whitfield, 1876, Rep. Recon. 



Up. Mo. to Yel. Nat. Park, Potsdam 



Gr. [Ety. proper name.] 

 wixotuiMnm, see Conocephalites wiscon- 



sinensis. 

 Oryphxw, Green, 1837> Jour. Acad. Nat. Sci., 



vol. 7, syn. for Dalmanites. This 



name has priority over Dalmanites, 



hut the definition has not given satis- 

 faction. 

 boothi, Green, 1837, Jour. Acad. Nat. Sci., 



vol. 7. See Dalmanites hoothi. 

 callitehis, see Dalmanites calliteles. 

 greeni, syn. for Dalmanites boothi. 

 Cryptolithus, syn. for Trinucleus. 



tesselatus, see Trinucleus concentricus. 

 Cybelc, Loven, 1845, in Ofversigt of Vetensk. 



Acad. Handl. 

 punctata, Hall, 1852. This species belongs 



to the genus Encrinurus, and the spe- 

 cific name being preoccupied, the 



name is changed to E. ornatus. 

 Cyphaspis, Burmeister, 1843, Monograph of 



Trilobites. [Ety. cypJios, convex ; 



aspis, a shield.] 

 christyi, Hall, 1863, Trans. Alb. Inst., 



vol. 4, Niagara Gr. [Ety. proper 



name.] 

 girardeauensis, Shumard, 1855, Geo. Rep. 



Mo., Up. Sil. [Ety. proper name.] 

 Cythere, Muller, 1785, Entomostraca sue 



Insecta, etc. [Ety. proper name.] 

 americana, Shumard, 1858, Trans. St. 



Louis Acad. Sci., Up. Coal Meas. 



[Ety. proper name.] 

 carbonaria, Hall, 1858, Trans. Alb. Inst., 



vol. 4, Warsaw Gr. [Sig. from the 



Carboniferous Group.] 

 cineinnatiensis, Meek, 1872, Proc. Acad. 



Nat. Sci., Cin'ti Gr. [Ety. proper 



name.] 

 crassimarginata, Winchell, 1862, Proc. 



Acad. Nat. Sci., Marshall Gr. [Sig. 



thick-margi n ed . ] 

 nebrascensis, Geinitz, 1866, Carb. und 



Dyas in Neb., Coal Meas. [Ety. 



proper name.] 

 okeni, see Leperditia okeni. 

 simplex, White & St. John, 1868, Trans. 



Chi. Acad. Sci., St. Louis Gr. [Sig. 



simple.] 

 subkcvis, see Leperditia subkevis. 

 mbrecta, see Leperditia subrecta. 

 Cytherixa, Lamarck, 1818, Anim. sans 



Vert. [Ety. diminutive of Cythere.] 

 alta, see Leperditia alta. 

 crenulata, Emmons, 1856, Am. Geol., 



Trenton Gr. [Sig. crenulated.] 

 cylindrka, see Isochilina cylindrica. 

 fabulites, see Leperditia fabulites. 



spinosa, Hall, 1852, see Beyrichia spinosa. 

 Not Reuss in 1844. 



subcylindrica, Emmons, 1856, Am. Geol., 

 Trenton Gr. [Sig. somewhat cylin- 

 drical.] This name was preoccupied 

 by Munster in 1830. 



subelliptica, Emmons, 1856, Am. Geol., 

 Black Riv. Gr. [Sig. somewhat ellip- 

 tical.] 

 Cytiierops[s, McCoy, 1849, Ann. & Mag. 

 Nat. Hist., 2d series, vol. 4. [Ety. 

 Oytheropsis, resembling Cythere.] 



concinna, Jones, 1858, Ann. Nat. Hist., 

 3rd series, vol. 1, Black Riv. Gr. [Sig. 

 neat, pretty.] In 1865 Jones estab- 

 tablished the genus Primitia,' in which 

 he included this species. 



rugosa, Jones, 1858, Ann. Nat. Hist., 3rd 

 series, vol. 1, Black Riv. Gr. [Sig. 

 wrinkled.] 



siliqua, Jones, 1858, Ann. Nat. Hist., 3d 

 series, vol. 1, Black Riv. Gr. [Sig. a 

 pod.] 

 Dalmania, Emmrich, 1845. This name hav- 

 ing been preoccupied, Dalmanites has 

 been substituted, though many au- 

 thors prefer to use Odontochile, a name 

 proposed by Corda. 

 Dalmanites, Emmrich, 1845, (Dalmania) 

 Barrande, 1852, Sil. Syst. Boh. [Ety. 

 proper name.] 



acantholeurus, Conrad, 1841, (Asaphus 

 acantholeurus) Ann. Rep. N. Y., On- 

 ondaga limestone. [Sig. smooth- 

 spined.] 



achates Billings, 1860, Can. Nat. •& Geo., 

 vol. 5, Trenton Gr. [Ety. mythologi- 

 cal name.] 



segeria, Hall, 1861, 15th Reg. Rep. N. Y., 

 Up. Held. Gr. [Ety. mythological 

 name.] 



anchiops, Green, 1832, (Calymene anchi- 

 ops) Monograph, Schoharie grit. [Sig. 

 from the closeness of the eyes.] 



anchiops var. armatus, Hall, 1861, 15th 

 Reg. Rep. N. Y., Schoharie grit. [Sig 

 armed.] 



aspectans, Conrad, 1841, (Asaphus aspec- 

 tans) Ann. Rep. N. Y., Up. Held. Gr. 

 [Sig. seeing at a glance.] 



bebryx, Billings, 1860, Can. Nat. & Geol., 

 vol. 5, Trenton Gr. [Ety. mythologi- 

 cal name.] 



bifidus, Hall, 1862, 15th Reg. Rep. N. Y., 

 Up. Held. Gr. [Sig. divided.] 



boothi, Green, 1837, (Cryphasus boothi) 

 Jour. Acad. Nat. Sci., vol. 7, Ham. Gr. 

 [Ety. proper name.] 



bicornis, Hall, 1876,28th Reg. Rep. N.Y., 

 Niagara Gr. [Sig. two-horned.] 



breviceps, Hall, 1866, Pamplet, Cin'ti Gr. 

 [Sig. short-headed.] 



callicephalus, Hall, 1847, (Phacops calli- 

 cephalus) Pal. N. Y., vol. 1, Trenton 

 Gr. [Sig. beautiful head.] 



calliteles, Green, 1837, (Cryphseus calli- 

 telus) Am. Jour. Sci. & Arts, Ham, Gr. 

 [Ety. proper name.] 



