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NEW YORK STATE MUSEUM 



Sphyradium, 33 1 . 



edentulum,' 33 1 . 

 Spirilla, 3 9 . 



peroni, 3". 

 Spirulidae, 3 s . 

 Spisula, 67 s . 



solidissima, 67 s . 

 Stenotrema hirsuta, 39 s . 



monodon, 39", 40 1 . 

 var. fraterna, 40 8 . 

 var. leaii, 40 4 . 

 Strepomatidae, 15 4 . 

 Strobila labyrinthica, 46 1 . 

 Strobilops, 46 s . 



affinis, 47 1 . 



labyrinthica, 46°. 



virgo, 47 1 . 

 Strophitus, 85*. 



edentula, 85 7 . 



edentulus, 85*. 



var. pavonius, 85 7 , 85 s . 



undulatus, 85 s , 86 2 . 

 Stylifer, 12* 



stimpsoni, 12 1 . 

 Stylommatophora, 27*. 

 Succinea, 49*. 



aurea, 50 8 , 51 1 . 



avara, 50 5 . 



obliqua, 49', 50 1 . 

 totteniana, 50 2 . 



ovalis, 49*. 



retusa, 49*. 



totteniana, 50 2 . 

 Succineidae, 49*. 

 Sycotypus canaliculata, 5*. 

 Symphynota, 89 s . 



benedictensis, 88 1 . 



complanata, 9o\ 



compressa, 89 s . 

 var. plebius, 90 1 . 



costata, 90 5 . 



viridis, 90 2 . 



Tachea hortensis, 41 8 . 

 Tagelus, 65*. 



divisus, 65". 



gibbus, 65*. 

 Tebennophoridae, 47 T . 



Tebennophorus carolinensis, 

 48 1 . 



dorsalis, 48 s . 

 Tectibranchiata, 25 7 . 

 Tectura alveus, 25 7 . 



testudinalis, 25°. 

 Tellina, 67 s . 



fusca, 68 5 . 



(Scissula) iris, 68 3 . 



(Angulus) tenella, 68 1 . 

 tenera, 67 s . 



tenta, 68 7 . 



(Angulus) versicolor, 68 2 . 

 Tellinidae, 67 s . 

 Teredidae, 64 s . 

 Teredo, 64 s . 



dilatata, 64*. 



navalis, 64 s . 

 Thracia, 66 5 . 



conradi, 66 s . 



truncata, 66 6 . 

 Torinia, io 8 . 



borealis, io 6 . 

 Tornatella punctostriata, 26 s . 

 Tornatellidae, 26 1 . 

 Tornatellinae, 26 1 . 

 Tornatina, 26 1 . 



canaliculata, 26 s . 

 Trachydermon, 64 1 . 



albus, 64 1 . 

 Triforis, 15 3 . 



nigrocinctus, 15 8 . 

 Triodopsis fallax, 35 s . 



palliata, 38 2 . 



tridentata, 35*. 

 Trochidae, 24°. 

 Trophon, 4*. 



clathratus, 4 s . 



scalariformiSj 4 5 . 

 Truncilla, 80 4 . 



triquetra, 80*. 

 Trypanostoma pallidum, 16 1 . 



subulare, 15 7 . 

 Turbonilla, 12 2 . 



areolata, 12 8 . 



costulata, 12 8 . 



elegans, 12 4 . 



grandis, 12°. 



interrupta, 12 2 . 



stricta, 12 5 . 



