INDEX. 241 



PAGE. 



Leptocoelia hemispherica _ _ _ 152 



Lingula triangulata 34 



Meristella nasuta 98 



unisulcata 99 



Meristina maria 101 



nitida. 102 



Nucleospira concinna 103 



elegans 104 



pisiformis ] 04 



Orthis biforata , _ _ _ 35 



borealis 36 



elegantula 37 



flabellum 38 



goodwini _ _ 39 



hybrida 39 



livia , 40 



linneyi 41 



nisis 42 



propinqua 43 



rugaeplicata 44 



subnodosa 44 



vanuxemi , 45 



Pentamerella arata , . 49 



papilionensis ... 50 



thusnelda 61 



Pentamerus complanatus 63 



globulosus 64 



knappi - 55 



knighti _ 67 



knotti - 66 



littoni ,.__- . 58 



nucleus 69 



nysius, var. crassicostus 60 



nysius, var. tenuicostus 60 



oblongus 60 



oblongus, var. cylindricus 61 



pergibbosus : 62 



uniplicatus 63 



ventricosus 64 



Prgductella semiglobosa ............ , . , , T , . .. . 7Q 



GKOL. SUK. 31 



