50 



OtooIeBlBiiia, Billings. . Trimerellidm. 1871. 



Canadian Nat. new ser. vi, p. 220, Dec. (Sil.) Type Obolus galtensis, 

 Billings, I.e. p. 222. Pal. Geol. Snrv. Canada, p. 168, f. 161, Jan. 1862. 

 (=r Trimerella, B. ) 



Otoo§Bfi3se, Kiug. Lyopomata. 1846. 



Ann. Mag. Nat. Hist. xviii,p. 28. Fam. Brach. cont. Obolus. 



©fooliB2se, Dull. Lingulidce. 1870. 



Am. Jonrn, Concb. vi, p. 100. Snbfam. Brach. cont. OboJus, Obolella, 

 Monobolina, Spondylobohis. 



OfoolBBS, Eichwald. Oholidcc. I 8S0. 



Zool. Spec, i, p. 274. (Sil.) Type O. apollmis, Eich., Schl. sp. Dav. 1853, 

 p. 136, pi. ix, f. 280-284. Syn. Aulonotreta, ])aTS, Kut. ; Ungula, Fander; 

 Ungulltes, Bronn. 



©toovates, Rafinesque. BracMopoda. 1831. 



Mon. Biv. Shells Ohio E. p. 7. No ex. cited. Gen. incert. 



©tsBilMS, Quensteclt. Obolidce. 1871. 



Potref. Deutschl. ii, p. 732 ; lapsus, = Obolus, Eichw. 



®5iycEaates, Mercati. BracMopoda. 1717. 



Met. Vatic, p. 330 (non-binomial), and subsequent writers, for a group 

 of brachiopods with deeply incurved umbones, like Stringocephalus, 

 Gypidia, and some Bhynchonellce. 



dJa'EeiccSBa, D'Orbigny. ' Biscinidce. 1847. 



Comptes KeuduS; XXV, p. 269. No ex. cited. Ann. Sci. Nat. xiii, 1850, 

 p. 350. No ex. cited. Prodr. Pal. Strat. 1849, p. 20. No type selected, 

 tirst two sp. cited as of " D'Orb. 1847". 1st sp. 0. Buchii, Verneuil, 

 Murch. Geol. Euss. Ural, ii, p. 288, t. 19, f. 1. 2d sp. O. punctata, Sow- 

 erby, in Murchison's Siluria (ed. iii), p. 212, f. (35) 1, pl.v,f. 17. (L. 

 Sil.) Dav. Mon. Sil. Brach. p. 69, pi. vi, f. 9. 9th (last) sp. cited 0. ter- 

 minals, "D'Orb. 1848", Conrad, in Emmons, Geol. N. York, iv, p. 395, f. 

 4, 1842. Dav. 1856, xiv, f. 4-7. In the absence of other information, 0. 

 liuclui may be taken as the type. (= Trematis, Sharpe.) 



Cla'toat'aaBa, Olivier. Craniidw. B708. 



Tabl. El€m. d'Hist. Nat. p. 435. Type Patella anomala. Mull. = Crania 

 an. Dav. 1856, pi. xiii, f. 24, 32, 33, 35, 36. (Eecent.) Lamarck, Prodr. p. 83, 

 1799. Type O, norvegica, Lam. non Sow. ^Crania anomala. lb. Syst. 

 An. s. Vert. 1801, p. 140, same type. (^ Crania, Eetz.) 



©I'bicBiiIa, Sowerby. Biscinidce. 1830. 



Min. Conch, vi, p. 4, pl.506. Ex. 0. reflexa, Sow. 1. c. G. B. Sowerby, 

 Couch. Man. ed. ii, p. 209, 1842. Thes. Couch, i, p. 365, 1847. Not OrW- 

 cula, Cny. (=X)isciJ?a, Lam.) 



v^S'lulcaaBacea, Anton. Lyopomata. 1 839* I 



Verzeichn. p. 21. Fam. Brach. cont. Orlicnla. 



©B'foiiccalae, Deshayes. Lyopomata. 1830. 



Eticyc. M6th. iii, p. 553, tabl. Fam. Brach. cont. Orbicula. 



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