INDEX TO MOLLUSCA OF NEW YORK 



Loligo, 3*. 



illecebrosus, 3". 



pallida, 3 1 . 



peali, 3 6 . 



punctata, 3 s . 

 Lottia alveus, 25*. 

 Lucina divaricata, 79 1 '. 



filosa, 78 s . 



strigilla, 78 s . 

 Lucinella, 79 1 . 



divaricata, 79 1 . 

 Lucinidae, 78 7 . 

 Lymnaea acuta, 54*. 



catascopium, 55 1 . 



columella, 52 s . 



desidiosa, 54*. 



elodes, 53 s . 



elongata, 53". 



fragilis, 53 s . 



fusiformis, 54 s . 



humilis, 56 s . 



jugularis, 52 1 . 



macrostoma, 52*. 



navicula, 52*. 



pallida, 55°. 



palustris, 53 s . 



reflexa, 53'. 



umbrosa, 53°. 



See also Limnea. 

 Lymnaeus desidiosus, 54*. 

 Lymneus elodes, 53°. 



reflexus, 53 s . 

 Lyogyrus, 2 1 8 . 



granum, 21 9 . 

 Lyonsia, 66 8 . 



hyalina, 66 8 . 



Machaera costata, 6$ 2 . 

 Macoma, 68*. 



balthica, 68\ 



calcarea, 68 8 . 



tenta, 68 7 . 

 Macrocyclis concava, 41 2 . 

 Mactra gigantea, 67*. 



lateralis, 6f. 



solidissima, 67*, 6j*. 

 Mactridae, 67*. 

 Mactrinae, 67 s . 

 Mangelia pyramidalis, 7 s . 



Margarita, 24°. 



multilineata, 25 1 . 



ornata, 24°. 

 Margaritana, 92*. 



deltoidea, 91 2 . 



hildrethiana, 91 . 



margaritifera, 92 1 . 



marginata, 91°. 



rugosa, 90 5 . 



undulata, 90 3 , 91 1 . 

 Megayoldia, 95 s . 



thraciaeformis, 95 s . 

 Melampus, 51 s . 



bidentatus, 51 8 . 



corneus, 51 7 . 



denticulatus, 51 4 . 



lineatus, 51 5 . 

 Melania bizonalis, 17 7 , 18 1 . 



depygis, 16 5 . 



elevata, 16 4 . 



gemma, 17 7 , 18 1 . 



livescens, 16 7 . 



niagarensis, 17 1 . 



subularis, 15 5 . 



virginica, 17 9 . 

 Melantho decisa, 23°, 24". 

 var. genicula, 24 s . 

 var. heterostropha, 24°. 

 var. integra, 24 s . 

 var. obesa, 24 s . 



decisus, 24 2 . 



integer, 24*. 



ponderosa, 23 7 . 



rufa, 24*. 



rufus, 24 s . 

 Menetus exacutus, 60 8 . 

 Meretrix, 6g\ 



convexa, 69 s . 

 Mesodon albolabris, 36 7 . 

 dentate var., 37 1 . 



bucculenta, 39 2 . 



dentifera, 37 7 . 



diodonta, 36*. 



elevata, 38 s . 



exoleta, 37 s . 



multilineata, 37°. 



profunda, 36*. 



sayii, 36 s . 



thyroides, 39 1 . 



