THE NAUTILUS. 



137 



Zonites indentatus Say. 

 Zonites milium Morse. 

 Zonites fulvus Drap. 

 Zonites suppressus Say. 

 Zonites multidentatus Binn. 

 Patula solitaria Say. 

 Patula alternata Say. 

 Patula perspectiva Say. 

 Patula striatella Antli. 

 Patula lineata Say. 

 Helix labyrinthica Say. 

 Helix hirsuta Say. 

 Helix monodou Rack. 



var. fraterna Say. 

 Helix palliata Say. 

 Helix tridentata Say. 

 Helix albolabris Say. 

 Helix Pennsylvanica Say. 

 Helix exoleta Binn. 

 Helix dentifera Binn. 

 Helix thyroides Say. 

 Helix profunda Say. 

 Helix pulchella Miill. 

 Helix pulchella Miill. 



var. costata Miill. 

 Helix nemoralis Miill. 

 Pupa fallax Say. 



Planorbis (? var.) Harni Pils. 

 Carychium exiguum Say, 

 Unio aesopus Green. 

 Unio alatus Say. 

 Unio circulus Lea. 

 Unio clavus Lam. 

 Unio crassidens Lam. 

 Unio cylindricus Say. 

 Unio gibbosus Barnes. 

 Unio fabalis Lea. 

 Unio iris Lea. 

 Unio Kirtlandianiis Lea. 

 Unio ligamentinus Lam. 

 Unio multiradiatus Lea. 

 Unio mytiloides Raf. 

 Unio obliquus J^am. 

 Unio occidens Lea. 

 Unio parvus Barnes. 

 Unio phaseolus Hindr. 

 Unio pustulosus Lea. 

 Unio rectus Lam. 

 Unio securis Lea. 

 Unio subovatus Lea. 

 Unio subrotundus Lea. 

 Anodonta undulata Say. 

 Margaritana marginata Say. 

 JNIarffaritana ruo:osa Barnes. 



Margaritana undulata Say. 



EDIBLE MOLLUSKS OF RHODE ISLAND. 



BY HORACE P. CARPENTER, PROVIDENCE, R. I. 



I have read with much interest the article in the January Nauti- 

 lus by Prof. Keep and its supplement by Henry W. Winkley in 

 the February number and am tempted to add a short article on the 

 edible mollusca of Rhode Island. I think in point of numbers of 

 species, as well as individuals, Rhode Island will excel any state in 

 the Union. As we have seen California has but five species and 

 Maine only four regulars and two occasional, while Rhode Island 

 can show eight every day and five irregular as below. 



