INDEX TO MOLLUSCA OF NEW YORK 



103 



Helicidae, 33*. 

 Helicodiscus, 34". 



lineatus, 34", 35'. 

 Helisoma trivolvis, 59". 

 Helix, 4i 4 . 



albolabris, 36*. 



alternata, 33*. 



appressa, 38*. 



arborea, 30 1 . 



binneyana, 2Q 2 . 



caroliniensis, 37. 



cellaria, 28. 



chersina, 3i 3 . 



clausa, 3p 4 . 



concava, 41*. 



dentifera, 37*. 



diodonta, 36*. 



electrina, 28 T . 



elevata, 38". 



exoleta, 37 2 . 



fallax, 35 7 . 



fraterna, 40 3 . 



fuliginosa, 27 8 . 



ftilva, 3i 2 . 



hirsuta, 39. 



hortensis, 41*. 



indentata, 29*. 



inflecta, 36 1 . 



inornata, 28*. 



intertexta, 31*. 



labyrinthica, 46". 



ligera, 31*. 



lineata, 34 s . 



minuta, 40'. 



minutissima, 32*. 



monodon, 39 s , 40*. 



multidentata, 32*. 



multilineata, 37". 



ovalis, 49 5 . 



palliata, 3 /, 38 1 . 



pennsylvanica, 38 T . 



perspectiva, 34*. 



profunda, 36 2 . 



pulchella, 40". 



radiata, 33*. 

 rufa, 36. 

 sayii, 36'. 

 scabra, 33'. 

 solitaria, 34*. 



Helix striatella, 33 8 , 34*. 



subglobosa, 4i 5 . 



suppressa, 32 1 . 



thyroides, 38, 39'. 



thyroidus, 38", 39*. 



tridentata, 35 8 . 



viridula, 28'. 



zaleta, 37*. 

 Hemilastena, 91. 



ambigua, 91. 

 Homomyaria, 8o 4 . 

 Hyalina arborea, 3O 2 . 



cellaria, 28. 



electrina, 28 s . 



exigua, 30*. 



ferrea, 29'. 



fuliginosa, 27 s . 



indentata, 29'. 



inornata, 28*. 



intertexta, 31. 



ligera, 31. 



limatula, 30. 



lineata, 34". 



minuscula, 3O T . 



multidentata, 32*. 



nitida, 29".' 



viridula, 28 8 . 

 Hydrobia laevis, 19". 

 Hydrobiinae, ig 1 . 

 Hygrophila, 5i 7 . 



lanthina, ii 2 . 



fragilis, n 2 . 

 lanthinidae, n a . 

 Integripalliata, 70*. 

 Ischnochiton albus, 64 2 . 

 Ischnochitonidae, 63 s . 

 Isodora integra, 58". 

 Isognomostoma inflecta, 35' 

 Isthmia bollesiana, 43 7 . 



gouldii, 43 5 . 



milium, 44*. 



ovata, 42. 



simplex, 33*. 



ventricosa, 43'. 



Kellia, 79 4 . 

 planulata, 79*. 



