Ostrea virginiana, var., p. 28, pi. 14, fi{ 



p. [46]. 

 " virgiuica, pp. vi., 28, pp. [22, 46]. 



Pecten madisonius, p. 23, p. [41]. 

 Pectunculus aviculoides, p. 89, p. [65]. 

 corbuloides, p. 40, p. [66], 

 decism, p. 81), p. [65]. 

 declivis, p. 89, p. [65]. 

 glycimeris, p. 17, p. [31]. 

 idoneus, p. 39, p. [65]. 

 " pulvinatus, p. 17, pi. 2, fig. 2, 



p. [31]. 

 " subovatus, p. 17, pi. 2, fig. 8, 



p. [31]. 



variabilis?, p. 17, p. [31]. 

 Perua maxillata, p. 23, p. [41]. 

 Pholas costata, p. vi., p. [22]. 

 Pholadomya abrupta, p. 20, pi. 12, p. [44]. 

 PlagioBtoma dumosum, 2d ed., p. 34, pp. [82, 



90]. 

 Pleurotoma acutirostra, 2d cd., p. 52, pi. 17, 



fig. 21, p. [108]. 



" altcrnula, p. 46, p. [72]; 2d ed., 



p. 50, pi. 17, fig. 13, p. [106]. 



caelata, 2d ed., p. 50, p. [106]. 



callifera, 2d ed.,p. 52, p. [108]. 



cancellata, 2d ed., p. 39, p. [95]. 



" conoides, 2d ed., p. 51, pi. 17, 



fig. 17, p. [107]. 



desnoyersii, 2d ed., p. 51, p. [107]. 

 dentata, 2dcd.> p. 50, p. [106]. 

 depygis, p. 4G, p. [72 1; 2d ed., p. 



52, pi. 17, fig. 20, p. [108]. 

 elaborata, p. 40, p. [72]; 2d ed., 

 p. 52, pi. 17. fig. 19, p. [108]. 

 " gemmata, p. 52;2ded.,pl 17, 



fig. 22, p. [108]. 

 " hu'ninghausii, 2d ed., p. 51, p. 



[107]. 



lesuerii, 2d ed., p. 50, p. [106}. 

 lonsdalii, 2d ed., p. 52, p. [108]. 

 " nupera, p. 40, p. [72] ; 2d ed., 

 pp. 51, 52, pi. 17, fig. 16, p. 

 [107]. 



prisca, 2d ed., p. 51, p. [107]. 

 " proruta, 2ded., p. 51, pi. 17, 



fig. 15, p. [107]. 

 rugosa, 2d ed., p. 51, p. [107]. 

 subequalis, p. 51 ; 2d ed., pi. 17, 

 fig. 18, p. [107]. 



[120] 



. 2, Pleurotoma tabulata, p. 46, p. [72]; 2d ed., 

 p. 50, pi. 17, fig. 14, p. [106], 

 . Plicatula filamentosa, p. 83, p. [60]. 

 Psammobia eborea, p. 42, p. [68]. 

 filosa, p. 42, p. [68]. 

 Pyraraidella larvata, p. 40, p. [72]. 

 Pyrula elegantissima, 2d ed.,p. 89, p. [95]. 

 " penita, p. 32, p. [54]; 2d ed., p. 89, 



p. [95]. 



" 8mithii,2ded.,p. 37, p. [93]. 

 " sulcosa, p. 18, p. [32]. 

 " tricarinata, 2d ed., pp. 34, 88, pi. 15, 

 fig. 6, p. [94]. 



R 



Itanella caudata, p. vi., p. [22]. 

 Uostellaria cuvieri, p. 38; 2d cd., p. [94]. 

 " laqueata, p. 4 1, p. [67]; 2dod., 



p. 38, pi. 15, fig. 4, p. [U4]. 



velata, p. 31, p. [53];2d ed., pp. 



38, 41, pi. 15, tig. 5, p. [94]. 



Scalaria nassula. p. 31, p. [53]. 

 sessilis, p. 45, p. [71]. 

 Scutella lyelli, 2d ed., p. 32, p. [80]. 



" quinquajfara, 2d ed., p. 31, p. [79].' 

 Solarium alveatum, p. 31, p. [53J;2ded., p. 



47, pi. 17, tig. 8, p. [103]. 

 " anuimum-, p. 44, p. [70]. 

 " antrosum, p. 31, p. [53]. 

 " uxacuum, p. 44, p. [70]. 



bilineatum, 2d ed., p. 47, p. [103]. 

 " ' c mi ;i lie ul ut urn, 2d ed., p. 34, pp. 



[82, 90]. 

 " cancellatum, p. 40; 2d ed., pi. 17, 



fig. 11, p. [105]. 

 " elaboratura, 2d ed., p. 47, pi. 17, 



fig. 4, p. [103]. 



elegans, 2ded., p. 48, p. [104]. 

 " exacuum, 2d ed., p, 48, pi. i7,fig. 



5, p. [104]. 

 funginum, p. 44, p. [70]; 2d ed., 



p. 48, pi. 17, fig. 7, p. [104]. 

 " granulatum, 2d ed., p. 50, p. [106]. 



henrici, 2d ed., p. 49, p. [105]. 

 " lineatum, 2ded., p. 50, pi. 17, fig. 



12, p. [106]. 



patulum, 2d ed., p. 34, p. [82], p. 

 49, pi. 17, fig. 9, p. [105]. 

 " scrobiculatum, p. 44, p. [70]. 

 " stalagmium, p. 44, p. [70]; 2ded., 



