NOTES AND EXPLANATIONS. 



2 = Nummulites floridana, Conrad, Am. Jour. Sci. II, 2d series, 399, 3. 



3 := Turbinolia Goldfussii, Lea, ib."195. 



4 = Turbinolia Stokesii, Lea, Cont. to Geol. 194. 

 8 = Anthophyllum cuneiforme, Conkad. 



10 = Turbinolia Maclurii, Lea, Cont. to Geol. 193, 6, 206. 



12 = Scutella Lyelli, Conrad, Jour. Acad. Nat. Sci. VII, 152. 



13 = Orbitolites interstitia (Lea), Limulites, Gabb & Horn. 

 15 = Lunulites Bouei, Lea, Cont. to Geol. 189, 6, 202. 



If) = Orbitolites discoidea, Lea, ib. 192, 6, 205. 



17 = Lunulites Duclosii, Lea, ib. 190, 6, 203. 



19 = Terebratula wilmingtonensis, Lyell & Sowerby, Jour. Geol. Soc. 



I, 431. 

 29 = Ostrea e versa, Desuayes, Cog. Foss. Supplement, pi. xxxiv, f. 5, 



6, 7, 8. 0. subeversa, Conrad, Eocene Cat. Am. Jour. Conch. 



1, 15. It belongs to tlie section of Esph-es gryphndes of Desbayes. 

 35 = Pecten calvatus, Morton, Synopsis, 58, 10, 3, 1834. 



41 = Leda compsa, Gabb, Jour. Acad. Nat. Sci. IV, 2d series, 3S7, 57. 



42 = Nucula cultelliformis, Rogers, Trans. Amer. Philos. Soc, V, 



new ser. 339. 



46 = Nucula magna, Lea, Cont. to Geol. 196, 6, 121. 



47 = Nucula media, Lea, ib. 83, 3, 62. 



49 = Leda oregona, Shumard, Trans. Acad. Nat. Sci. of St. Louis, I, 121. 



50 = Nucula ovula, Lea, ib. 80, 3, 59. 



52 = Nucula parva, Rogers, Trans. Am. Phil. Soc. V, new ser. 340. 



53 = Nucula plana, Lea, Cont. to Geol. 199, 6, 213. 



54 = Nucula plicata, Lea, ib. 85, 3, 64. 



56 = Nucula pulcherrima, Lea, ib. 84, 3, 63. 



57 = Nucula semen, Lea, ib. 200, 6, 214. 



59 = Leda willametensis, Shumard, Trans. Acad. Nat. Sci. of St. 

 Louis, I, 121. 



74 = Cucullaea ononcheila, Rogers, Trans. Am. Phil. Soc. VI, 2d ser. 



372, 28, 2. 



75 = Cucullaea transversa, Rogers, ib. 373, 29, 1. 



78 = Area rhomboidella, Lea, Cont. to Geol. 74, 2, 52. 

 83 = Pectunculus ellipsis, Lea, ib. 78, 3, 56. 

 86 = Nucula pectuncularis, Lea, ib. 81, 3, 60. 

 I 96 = Crenella concentrica, Gabb, Palseont. of Cal. 186, 24, 169. 



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