INDEX. 



Abracliiopoda, Herrmannseu. ] 853, 



lud. Gen. Mai. Suppl. p. 1. {=. Ahracliiopodes, D'Orb.) 



AI>rac6iiopo€leis, D'Orbigny. 1847. 



Comptes Rendus, xsv, p. 269. Division of Brach, coat. Thecidce, Ca- 

 prinidce, BadwUdw. 



Acaaii bona, White. Spiriferidce. 1862. 



Proc. Boston Soc. Nat. Hist. April, 1862, p. 27, f. 1-2. (Carb.) Type 

 A. prima, White, 1. c. (Cf. Eumetria, Hall.) 



Acafithotliiri!^, D'Orbigny. Ehynchonellidce. 1 850. 



Ann. Sci. Nat. xiii, p. 323, and Pal. Frang. Terr. Cret. iv, p. 343. 

 Type Rliijnchonella spinosa (Schloth. sp. Verst. 1813j. Dav. Mon. Oolit. 

 Bracb. p. 71, pi. xv, f. 15-20. (Oolitic.) 



Acanthothyris, Paetel. Rhynclioncllidxe. 1875. 



Fam. u. Gatt. Moll. p. 1. {^= Acanthothlris, D'Orb. corrig.) 



Acarde, Latreille. Eudistes. 1825. 



Fam. Nat. Rfegne An.* Gen. Rudistarum, male ad Brach. ref . ( Acardia, 

 Berth. BadioUtes, Lam.). 



Acardia, Berth. Rudistes. 1827. 



Germ. Ed. Latreille Fam. Nat. p. 197. (Cf. Acarde, Latr.) 



Acardanes, Herrmannsen. Coelenterata. 1846. 



Ind. Gen. Mai. i, p. 3. (Cf. Les Acardes, Desm.) 



Acephaflophora palllobranchia, BlaiDville. 1814. 



Prodr. Bull. Soc. Philom. p. 179. Order Acephal. cont. Lingida, Tere- 

 iratula, Orhicula, Hyalea ?, Pneumodermon f. 



Acrites, Davidson & King. OhoUdce. 1874. 



Quart. Journ. Geol. Soc. Lond. May, 1874, p. 137, lapsus, =Acritis, 

 Volborth, from aKpirog. (Scr. Acritus.) 



Acritis, Yolborth. OhoUdce. 1869. 



Verb. K. Min. Ges. St. Petersburg fur 1868, p. 217, t. xvii, f. 7-9. (Sil.) 

 Type A. aniiquissima, Volb. 1. c. =Obolus ant., Eicbwald, Urwelt, 1843, * 

 ii, p. 142, t. iv, f, 1 a-c. Id. Leth. Ross. 1859, p. 928, t. xxsvil, f. 5 a-d, 

 = Aulonotreta sculpta, Kutorga, Verb. 1. c. 1847, p. 282, t. vii, f. 11. Quen- 

 stedt, Petr. Deutschl. 1871, p. 671, {^Aulonotreta, K.). 



This name, founded on Kutorga's second type of Aulo- 

 notreta, should give way to that name. It appears very 



closely related to Hall's Leptoholus, 1871. 



II 



