210 



CRUSTACEA. 



Anthracopal^emon, Salter, 1861, Quar. Jour. 



Geo. Soc. Lond., vol. 17. [Ety. an- 

 thrax, coal ; pakemon, ancient prawn 



or shrimp.] 

 gracilis, Meek & Worthen, 1865, Proc. 



Acad. Nat. Sci. Phil., Coal Meas. [Sig. 



slender.] 

 hillanus, Dawson, 1877, Geo. Mag., Coal 



Meas. [Ety. proper name.] 

 Arciijeocaris, Meek, 1872, Proc. Acad. Nat. 



Sci. Phil. [Ety. archaios, ancient; 



karis, a shrimp.] 

 vermiformis, Meek, 1872, Proc. Acad. 



Nat. Sci. Phil., Low. Carb. [Sig. worm- 

 shaped.] 

 Arges, Goldfuss, 1839, Nova Acta Phys. 



Acad. Caes. Leop. Nat. Cur. [Ety. 



mythological name.] 

 phlyctainodes, Green, 1837, (Calymene 



phlyctainodes) Am. Jour. Sci., vol. 32, 



Niagara Gr. [Sig. pimplj', pustulous.] 

 Arionellus, Barrande, 1852, Syst. Sil. Boh. 



[Ety. diminutive of Arion, a generic 



name.] 

 bipunctatus, Shumard, 1863, Trans. St. 



Louis Acad. Sci., Potsdam Gr. [Sig. 



double-dotted.] 

 cylindricus, Billings, 1860, Can. Nat. & 



Geo*, vol. 5. Quebec Gr. [Sig. cylin- 

 drical.] 

 oweni, see Agraulos oweni. 

 planus, Shumard, 1861, Am. Jour. Sci., 



Potsdam Gr. [Sig. flat.] 

 pustulatus, Walcott, 1877, 29th Reg. Rep. 



N. Y., Chazy Gr. [Sig. pustulated.] 

 subclavatus, Billings, 1860, Can. Nat. & 



Geo., vol. 5, Quebec Gr. [Sig. some- 

 what club-shaped.] 

 texanus, Shumard, 1861, Am. Jour. Sci., 



Potsdam Gr. [Ety. proper name.] 

 tripunctatus, Whitfield, 1876, Rep. Recon. 



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



Gr. [Sig. three-dotted.] 

 Asaphiscm, Meek. Syn. for Bathyurellus. 



wheeleri, see Bathyurellus wheeleri. 

 Asaphus, Brongniart, 1822, Hist. Nat. Crust. 



Foss. [Ety. asaphus, uncertain, ob- 

 scure.] 

 acantholeurus, see Dalmanites acantholeu- 



rus. 

 alacer, Billings, 1866, Catal. Sil. Foss. 



Antic, Hud. Riv. Gr. [Sig. lively, 



quick.] 

 aspectans, Conrad, see Dalmanites aspect- 



ans. 

 astragalotes, Green, 1834, Am. Jour. Sci., 



vol. 25, (?) Gr. [Sig. having vertebras.] 

 barrandi, Hall, 1851, Lake Sup. Land. 



Dist., Birdseye Gr. [Ety. proper 



name.] 

 canadensis, Chapman, 1856, Can. Jour., 



vol. 2, Trenton Gr. [Ety. proper 



name.] 

 canalis, see Isotelus canalis. 

 cory<xms, see Proetus corycceus. 

 crypturus, Green, 1827, Am. Jour. Sci., 



vol. 13, Up. Sil. [Sig. concealed tail.] 



curiosus, Billings, 1865, Pal. Foss., vol. 1, 

 Quebec Gr. [Sig. curious.] 



dentieulatus, see Dalmanites denticulatus. 



diurus, Green, 1840, Am. Jour. Sci., vol. 

 37, Niagara Gr. Probably the frag- 

 ment of a Dalmanite. 



extans, see Bathyurus oxtans. 



gigas, see Isotelus gigas. 



goniocercus, Meek, 1872, Hayden's Geo. 

 Rep., Quebec Gr. [Sig. angular-tailed.] 



goniurus, Billings, 18(i8, Can. Nat., vol. 

 5, Quebec Gr. [Sig. angular-tailed.] 



halli, Conrad, 1840, syn. for Dalmanites 

 boothi. 



halli, Chapman, 1858, Ann. & Mag. Nat. 

 Hist., 3rd ser., vol. 2, Trenton Gr. 

 [Ety. proper name.] 



hausmani, Brongniart, as identified by 

 D'Archiac and Verneuil. Not Amer- 

 ican. 



hincksi, Salter, 1859, Ann. & Mag. Nat. 

 Hist., 3rd series, vol. 4, Trenton Gr. 

 [Ety. proper name.] 



homalonotoides, Walcott, 1877, 29th Reg. 

 Rep. N. Y., Trenton Gr. [Sig. like 

 Homalonotns.~] 



huttoni, Billings, 1865, Pal. Foss., Quebec 

 Gr. [Ety. proper name.] 



illaanoides, Billings, 1860, Can. Nat., vol. 

 5, Quebec Gr. [Sig. like an Ulaenus.] 



iowensis, Owen, 1852, Geo. Wis., Iowa 

 and Minn., Trenton Gr. [Ety. proper 

 name.] 



laticostatus, syn. for Dalmanites anchiops. 



latirnarginatus, Hall, 1847, Pal. N. Y., 

 vol. 1, Trenton and Hud. Riv. Gr. 

 [Sig. broad-margined.] 



limulurus, see Dalmanites limulurus. 



marginalis, Hall, 1847, Pal. N. Y., vol. 1, 

 Chazy Gr. [Sig. having a margin.] 



megalopthalmus, Troost, 1840, 5th Geo. 

 Tenn., Niagara Gr. Not clearly de- 

 fined, but probably a Dalmanites. 



meghtos, see Isotelus megistos. 



micrurus, see Dalmanites micrurus. 



morrisi, Billings, 1865, Pal. Foss., Que- 

 bec Gr. [Ety. proper name.] 



myrmecopltorus, see Dalmanites myrme- 

 cophorus. 



nasutus, see Dalmanites nasutus. 



notans, Billings, 1866, Catal. Sil. Foss. 

 Antic, Hud. Riv. Gr. [Sig. marked.] 



obtusus, Hall, 1847, Pal. N. Y, vol. 1, 

 Chazy Gr. [Sig. obtuse.] 



pelops, Billings, 1865, Pal. Foss., Quebec 

 Gr. [Ety. mythological name.] 



platycephalus, Stokes, 1823, Geo. Trans., 

 vol. 1, Trenton Gr. [Sig. flat-headed.] 



platypleurus, Green, 1837, Am. Jour. Sci., 

 vol. 32, Low. Sil. [Sig. flat-sided.] 



pleuropteryx, see Dalmanites pleuropteryx. 



polypleurus, Green, 1838, Am. Jour. Sci., 

 vol. 34, Keokuk Gr. [Ety. many- 

 ribbed.] Probably a Phittipsia. 



quadraticaudatus, Billings, 1865, Pal. 

 Foss., Quebec Gr. [Sig. square-tailed.] 



