INDEX TO MOLLUSCA OF NEW YORK 



105 



Loligo, 3*. 



illecebrosus, 3". 



pallida, 3\ 



peali, 3 6 . 



punctata, 3*. 

 Lottia alveus, 25 6 . 

 Lucina divaricata, 79*. 



filosa, 78 8 . 



strigilla, 78". 

 Lucinella, 79*. 



divaricata, 79*. 

 Lucinidae, 78 T . 

 Lymnaea acuta, 54*. 



catascopium, 55*. 



columella, 52. 



desidiosa, 54*. 



elodes, 53". 



elongata, 53". 



fragilis, 53'. 



fusiformis, 54 3 . 



humilis, 56 s . 



jugularis, 52 1 . 



macrostoma, 52". 



navicula, 52. 



pallida, 55 9 . 



palustris, 53 9 . 



reflexa, 53*. 



umbrosa, 53 8 . 



See also Limnea. 

 Lymnaeus desidiosus, 54*. 

 Lymneus elodes, 53 9 . 



reflexus, 53 s . 

 Lyogyrus, 2i 8 . 



granum, 2i 9 . 

 Lyonsia, 66 s . 



hyalina, 66 8 . 



Machaera costata, 65*. 

 Macoma, 68*. 



balthica, 68*. 



calcarea, 68 8 . 



tenta, 68 7 . 



Macrocyclis concava, 41*. 

 Mactra gigantea, 67*. 



lateralis, 67. ' 



solidissima, 67, 67*. 

 Mactridae, 67*. 

 Mactrinae, 67*. 

 Mangelia pyramidalis, f. 



Margarita, 24 9 . 



multilineata, 25*. 



ornata, 24 9 . 

 Margaritana, 92*. 



deltoidea, gi z . 



hildrethiana, 91. 



margaritifera, 92*. 



marginata, Qi 8 . 



rugosa, go 5 . 



undulata, 9o 9 , 91*. 

 Megayoldia, 95*. 



thraciaeformis, 95 3 . 

 Melampus, 51*. 



bidentatus, 5i 6 . 



corneus, SI T . 



denticulatus, 51*. 



lineatus, 5i 5 . 

 Melania bizonalis, if, iS l . 



depygis, i6 5 . 



elevata, 16*. 



gemma, if, i8\ 



livescens, i6 T . 



niagarensis, if. 



subularis, 15*. 



virginica, I7 6 . 

 Melantho decisa, 23, 24*. 

 var. genicula, 24. 

 var. heterostropha, 24 6 

 var. integra, 24. 

 var. obesa, 24'. 



decisus, 24". 



integer, 24 2 . 



ponderosa, 23 7 . 



rufa, 24*. 



rufus, 24 3 . 



Menetus exacutus, 6o 8 . 

 Meretrix, 69 7 . 



convexa, 69". 

 Mesodon albolabris, 36 7 . 

 dentate var., 37 1 . 



bucculenta, 39 2 . 



dentifera, 37 T . 



diodonta, 36*. 



elevata, 38". 



exoleta, 37'. 



multilineata, 37. 



profunda, 36 2 . 



sayii, 36'. 



thyroides, 39 1 . 



