17 



vj Acmsea alveus (Conrad), 



Very common all along the coast, on eel grass and 

 occasionally on rocks. 

 Lepeta caeca, Muller. 



Patella Candida, Gould, 1841. 

 Pilidium candidum, Stimpson, 1851. 

 Casco Bay to Eastport. 

 <^ Puncturella noachina (Linne). 



Cemoria princeps, Mighels and Adams, 1842. 

 Diadora noachina, Stimpson, 1851, Verrill, 1873. 

 Cemoria noachina, Gould, 1870. 



Whole coast of Maine. ^ 



\J Calliostoma occidentale (Mighels and Adams), 1842. '^^j!^'-*^ 



Trochus occidentalis, Stimpson, 1851, Gould, 1870. '^■'^'V^*^'- 

 Whole coast of IMaine. 

 fc^ Solariella obscura (Couthouy). 



Margarita obscura, Gould, 1870. 

 Machseroplax obscura, Verrill, 1882. 

 Whole coast of Maine. 

 Solariella obscura var. bella (Verkruzen). 



A few dredged off Ironbound Island, Frenchman's Bay 

 (Blaney) ; "The variety is the predominant form at 

 ^ Eastport" (Verrill). 



^ Margarites helicina (Phipps). /3ar/^ , 



Margarita arctica. Leach, 1819. hacf-/^'*^ 



Margarita campanulata, Morse, 1867. 

 Whole coast of Maine. 

 V Margarites cinera (Couthouy). 

 Whole coast of Maine. 

 Margarites olivacea (Brown). 



Margarita argentata, Gould, 1870. 

 Whole coast of Maine. 

 Margarites minutissima, Mighels, 1843. 



A single specimen taken from the stomach of a haddock in 

 Casco Bay (Mighels). "It is not very nearly allied to any of 

 the other species found on the coast. Under a magnifier it 

 somewhat resembles M. varicosa, in the ultimate whorl. It is, 

 however, readily distinguished by its very depressed and obtuse 

 spire." — Mighels. f 



