51 

 ©jrtolcMlarlM§, Dumeril. Craniidw. 1 806. 



Zool. Analyt. p. 168. (= Orbicula, Cuv.) 



OrfoiCMlIdsB, M'Coy. Lyopomata. 1844, 



Carb. Foss. Ireland, p. 103. Fam. Brach. cont. Oriicula. Adt. King, 

 Ann. Mag. Nat. Hist, xviii, p. 28, 1846. (^Discinidce.) 



OrbicuMdaB, D'Orbigny. Lyopomata. 1 849. 



Cours El^m. Pal. p. 80. Fam. Brach. cont. SipTionotreta, Orbicella, Or- 

 Mculoidea, OrMcula. 



OrtoaciflllBta, Agassiz. Lyopomata. 1 847. 



Nom. Zool. Index, p. 757. = OrMculidce, M'Coy corrig. Not Orhiculina, 

 Lam. gen. Rhizop. 



OrfoicMloidea, D'Orbigny. Biscinidce. 1 847. 



Comptes Eendus, xsv, p. 269. No ex. cited. Ann. Sci. Nat. xiii, 1850, 

 p. 351. No ex. cited. Prodr. Pal. Strat. 1849 (Sil.), p. 21. 1st sp. 0. 

 Morrisii, "D'Orb. 1847", Dav. Mon. Sil. Brach. p. 65, pi. vii, f. 10-12. Two 

 other sp. cited as of "D'Orb. 1848''. It would appear as i{ 0. Morrisii 

 must be considered as the type. Dav. 1856, pi. xiv, f. 1-3, cites 0. ellip- 

 tica, Kutorga sp. {Scliizotreta) as type or example of both Orbiculoidea and 

 ScMzotreta, as also in 1853, p.l29,t.ix,f. 253-255. It is, however, only ' 



the type of the latter, though both may be congeneric. (Comp. Schizo- 

 treta, Kut.) 



©B'atBioltSfiFis, Davidson, Productidce. 18^6. 



Intr. Expl. pi. xii, f. 27 ; lapsus =^ Ortlioilirix, Geinitz. 



©rthasMtooiiltes, Pander. StropJiomenidce. 1 830. 



Beitr. Geogn. Euss. Eoiches, p. 80, t. lii, f. 7 ; xxviii, f. 18, generic 

 diagrams. 1st sp. p. 81, t. xxii, f. 1, (Sil.) 0. transversa, Pander, 1. c, 

 which with eleven of Pander's eighteen nominal species is referred by 

 Bronn, lud. Pal. iii, p. 852, to Orthis calligramma, Dalman, Ter. p. 28, t. 2, 

 f. 2. See Ortliis. Syn. ScMzophoria, King. (^ Orthis, Davidson.) 



©FtEandae, Woodward. Arthropomata. 1 852. 



Man. Eec. and Foss. Shells, p. 229. Fam. Brach. cont. genera OrtMs, 

 Stropliomena, Daxndsonia, Calceola. 



®Ftlal§, Dalman. Strophomenidce. 1838. 



Kongl. Yet. Acad. Handl. f. 1827, pp. 93, 96. Ist sp. (queried by Dalm.), 

 0. f peeten, Wahl. sp. Act. Upsal. viii, p. 66 ; Dalm. 1. c. p. 110, t. 1, f. 6. 

 2d sp. (also qneried), 0. ? striatella, Dalm. 1. c. p. Ill, t. l,f. 5; 3d (not 

 regarded as typical by Dav.), 0. zonata, Dalm. 1. c. p. Ill, t. ii, f. 1 a-e 

 (not= 0. adscendens, Pander) ; 4th sp. 0. callactis, Dalm. 1. c. p. 112, t. ii, 

 f. 2; 5th sp. 0. calligramma, Dalm. 1. c. p. 114, t. ii, f. 3 a-d; Dav. 1853, 

 t. vii, f. 127. This and the 4th sp. are taken as typical by Davidson. 

 Syn. Sclxizoplioria, King ; Orthamhonites, Pander. Not Oi-iliis, Mke. 



^ Menke. Terebratulidce. 1 830. 



Syn. Mug. Menkeanum, ed. ii, p. 96. Sole ex. Anomia trmicata, Lin. sp. 

 Dav. 1856, pi. vii, f. 9-12. Id. Philippi, Moll. Sicil. ii, p. 69 ; i, p. 95, t. 

 vi, f . 12. Not congeneric with any of Dalman's species. ( = Megerlia, 

 King.) 



