PALEONTOLOGICAL INDEX 



52.: 



Aturia, clii. 

 Aulacodiscus, Ji97. 



crux, 498. 



margaritaceous var. mollerl, 498. 



rogersil, cxx ; 497. 



sollittanus, 498. 

 Auliscus, 497. 



caballi, 497. 



prunosus, 497. 



spinosus, 497. 

 Auricularia, 219. 

 Aurinia, cxxiv ; 17i. 

 Avellana ovoidea, 131. 

 Aves, xciv ; 1, 58. 



B 



Balaena, cli ; 55, 56. 



afflnis, xciv ; 55. 



antarctica, 55. 



mysticetus, 55. 



palseatlantica, 45, 46. 



prisca, 45, 46. 



rorqual, 46. 

 Balaenidae, SJ,^ 35, 49, 51. 

 Balaenodon, 56. 

 Balaeooptera, 47, 5.}. 



definita, 54. 



prisca, 40. 



pusilla, 44. 



sibbaldii, 3. 



siirsiplana, xciv ; SI/. 

 Balaenopterae, 54, 55. 

 Balaeoopteridae, 34. 

 Balauidae, 9'/. 

 Balanus, cli ; Off. 



concavus, Ixxxii, Ixxxv, Ixxsix, xc. 

 xci, xcii ; 9i. 



finctiii, 94, 97. 



proteus, 94, 97. 

 Barbatia, cxxxvi, clii ; 391. 



centenaria. 391. 



marylandica, 392. 



virginiae, 393. 

 Barnea, cxxx ; 27^. 



arcuata, cviii, cxxx ; 27.}. 

 Basilosaurus, 7, 20, 23. 



atlanticus, 6, 7. 

 Belaenoptera pusilla, 44. 

 Belemnitella americana, xxviii. 

 Belosphys atropius, IS. 



conradi, 16. 



spinosus, 17. 



stenus, 16. 

 Biddulphia, i92. 



acuta, cxx ; ^92. 



americana, 492, 493. 



americana var. neogradeuse, 493. 



angulata, 495. 



aurita, 492. 



condecora, cxx ; i92. 



cookiana, 493. 

 decipiens, cxx ; .'i9S. 

 favus, 492. 

 granulata, 494. 

 interpunctata, cxx ; JiS.'i. 

 mobiliensis, 494. 

 quadricornis, 494. 

 reticulosa, 494, 495. 

 reticulum, 494. 

 semicircularis, cxx ; .}9/. 

 suborbicularis, cxx ; ^93. 

 subrotundata, 495. 

 tessellata, cxx ; ^95. 

 tridens, 496. 

 Biddulphise, 492. 

 Biflustras, 411, 412. 

 cyclopora, 411. 

 emarginata, 411. 

 ovalis, 411. 

 papyracea, 411. 

 proliflca, 412. 

 Bolivina, Jf73. 



beyrichii, 473, 474. 

 beyricbii var. alata, cxviii ; i7S. 

 gramen, 473. 

 Bonellia lineata, 218. 

 Boreofusus, 184. 

 Bornia, 330. 



depressa, cxii ; 331. 

 mactroides, ex ; 330. 

 marylandica, cxii ; 330. 

 triangula, cxii, cxxxii, civ ; 330. 

 Brachiopoda, cxvi ; 1, 402. 

 B.'yozoa, cxvi ; 1, W. 

 Bucardia fraterna, 317. 



markoei, 316. 

 Buccinanops variabilis, 197. 

 Buccinidse, IS.'/. 

 Buccinofusus, 18i. 



parilis, cii ; 18-',, 186, 206. 

 Buccinum altile, 188. 



aratum, 189, 190, 191. 

 bilix, 189. 

 fossulatum, 189. 

 integrum, 197. 

 lienosum, 189. 

 lunatum, 199. 

 multirugatum, 189. 

 porcinum, 189, 190. 

 protractum, 188. 

 pusillum, 197. 

 quadratum, 198. 

 reticosum, 191. 

 scala, 207. 

 scala? var., 207. 

 trivitatum, 195. 

 trivittatum, 195. 

 Bulla acuminata, 134. 

 conulus, 136. 



