24 



Trophon clathratus (Linne). 



Fusus scalar! formis, Gould, 1841. 

 Tritonium scalariforme, Stimpson, 1851. 

 Trophon scalariformis, Gould, 1870. 



Casco Bay (Mighels, Fuller, Kingsley) ; East and 



West Cod Ledges off Cape Elizabeth (Verrill). 

 Trophon clathratus var. gunneri, Loven. 



Off Grand Manan and off Cape Sable, 59 fath, 



(Verrill). 

 Purpura lapillus (Linne). 



Very abundant everywhere, on ledges and rocks,. 



between tides. 

 Purpura lapillus var. imbricata, Lamarck. 



Found in company with the type, but less numerous. 

 Columbella (Anachis) avara (Say), 1822. 



Casco Bay, stomach of a haddock (Mighels). 

 Columbella (Anachis) haliaeti (Jeffreys). 

 Anachis costulata, Verrill. 



Gulf of Maine, Cashes Ledge, Jeffreys Bank, etc., 30 



to 114 fath. (Verrill). 

 Columbella (Astyris) rosacea, Stimpson. 

 Buccinum rosaceum, Mighels, 1843. 



Whole coast of Maine. 



Columbella (Astyris) dissimilis, Stimpson, 1851. 

 Astyris zonalis, Verrill, 1873. 



Whole coast of Maine. 

 Nassa trivittata, Say, 1821. 



Buccinum trivittatum, Adams, 1838. 



Whole coast of Maine. 

 Nassa obsoleta, Say, 1821. 



Buccinum obsoletum, Gould, 1841. 

 Ilyanassa obsoleta, Stimpson, 1865. 



Very common all along the coast in coves and inlets, 

 on muddy flats between tides and at low-water mark. 

 Buccinum undatum, Linne. 

 (Whelk or sea snail.) 



Very abundant all along the coast, on rocky bottoms, 

 from low-water mark to 50 or more fathoms. 



