PISCES. 



319 



niiturwifisench. Anhang. 

 afterward in 1852, Kreid von 



Protichnites alternans, P. latus, P. line- 

 atus, P. multinotatu6,'P. octo-notatus 

 and P. septem-notatus are from the 

 Potsdam Gr. 

 Pteuocephalia Roemer, 1849, Texas, Mit 



Bonn., and 

 Texas. 



[Ety. pteroii vving; fc^^pAaZe head.] It 

 is identical with Dieellocephalus, and 

 has priority of definition, and was 

 illustrated the same year, 

 sancti-sabse, Roemer, 1849, Texas. Mit 

 natnrwissench. Anhang., and in 1852, 

 Kreid von Texas., Potsdam Gr. [Ety. 

 proper name.] 

 Pterygotus buftaloensis. Pohlman, 1881, 

 Bull. Buf. Soc. Nat. Hist., vol. 4, 

 Waterlime Gr. [Ety. proper name.] 

 cummin^si, Grote & Pitt, 1877. Bull 

 Buf. Soc. Nat. Hist., vol. 4, Water- 

 lime Gr. [Ety. proper name.] 

 Ptychaspis minuta, Whitfield, 1878, Ann. 

 Rep. Geo. Sur. Wis., Potsdam Gr. 

 [Sig. minute.] 

 pustulosa, Hall & Whitfield, 1877, TJ. S. 

 Geo. Expl.. 40th Parallel, Potsdim 

 Gr. [Sig. pustulous.] 

 speciosa, Walcott, 1879, 32d Reg. Rep. 



[Sig beautiful.] 

 striata, Whitfield, 1878, Ann. Rep. Geo. 

 Sur. Wis., Potsdam, Gr. [Sig. 

 striated.] 

 Rhachura, Scudder, 1878, Proc. Bost. Soc. 



Nat. Hist. [Ety. rachis, a ridge ; oura, 

 tail.] 

 Rhachura venosa, Scudder, 1878, Proc. 

 Bost. Soc. Nat. Hist.. Coal Meas. [Sig. 

 full of veins.] 

 RusiCHNiTES carbonarius, Dawson, 1868, 

 Acadian Geology, Carboniferous. [Sig. 

 pertaining to Carbon.] 

 grenvillensls, Dawson, Chazy Gr. [Ety. 

 proper name.] 

 Solenopleura nana, Ford, 1878, Am. Jour. 

 Sci. and Arts, 3d ser., vol. 15, Pots- 

 dam Gr. [Sig. a dwarf.] 

 Spathiocaris, Clarke, 1882, Am. Jour. Sci. 

 and Arts, 3d ser., vol. 23. [Ety. 

 spathe, a spathe; karis, a s.hrimp.] 

 emersoni, Clarke, 1882, Am. Jour. Sci. 

 and Arts, 3d ser., vol. 23, Portage 

 Gr. [Ety. proper name.] 

 lutheri instead of Lisgocaris lutheri. 

 Triarthrus becki is from the Utica Slate 

 Gr. 

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

 bec Gr. [Ety. proper name.] 

 glaber, Billings, 1859, Can. Nat. and 

 Geol., vol. 4, Utica Slate Gr. [Sig. 

 smooth.] 

 spinosus is from the Utica Slate Gr. 

 trilineatus should be referred to Atops 

 trilineatus. 

 Trinucleus bellulus, Ulrich, 1878, Jour. 

 Cin. Soc. Nat. Hist., vol. 1, is from 

 the Utica Slate, and seems to be the 

 . young of T. concentricus. 



CLASS ARACHNIDA. 



EoscoRPius was published in vol. 46, Am. Jour. Sci. and Arts. 



CLASS IVIYKIAPODA. 



EuPHOBERiA was published in vol. 46, Am. Jour. Sci. and Arts. 

 CLASS INSECTA. 



Archimylacris mantis is a typographical 

 or accidental mistake, and the ninie 

 , should be stricken out. 



Ephemerites primordialis. Scudder, 1878. 

 Proc. Bost. Soc. Nat. Hist., Coal 

 Meas. [Sig. primordial.] 



Termes, Linnaeus, 1748, Systema Naturae, 

 p. 610, and older authors. [Ety. Vermes, 

 a worm that eats wood] 

 contusus, Scudder, 1878, Proc. Bost. Soc. 

 Nat Hist.. Coal Meas. [Sig. broken 

 or bruised ] 



CLASS PISCES. 



Acondylacanthus (?) mudgianus, St. 

 John&Worthen (In press), Geo Sur. 

 111., vol. 7. Up. Coal Meas. [Ety. 

 proper name.] 

 nnperus. St John & Worthen (In press), 

 Geo. Sur 111., vol. 7, Up. Coal Meas. 

 [Sig. new.] 



Acondylacanthus rectus, .St. John <fc 

 Worthen (In press), Geo. Sur. 111., 

 vol. 7, Up Coal Meas. [Sig. straight.] 

 xiphias, St. John & Worthen (In press), 

 Geo. Sur. 111., vol. 7, Keokuk Gr. 

 [Sig. a sword fish.] 



Amacanthus can not be derived from a7ia- 



