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CiNGULA (Alvania) castanea (Moller). 



Hissoa castanea, Moller (1842). 

 Cingula castanea, G. O. Sars (1878). 



Gaspe Bay (Whiteaves) ; Mingan (J. Richardson) ; near Caribou Island, 

 in 15 fathoms sand (Packard); Dead Island, near Square Island, Labrador, 

 1 to 4 fathoms, hard bottom, Stearns expedition (Miss Bush). 



Fossil in the Leda clay of Montreal (Sir J. W. Dawson). 



Cingula (Alvania) Jan Meyeni (Friele). 



Rissoa Jan-Mayeni, Friele (1877). 

 Cingula Jan-Meyeni, Verrill (1879). 



Some small but adult specimens of this shell were dredged by the writer 

 in 1869 off Grande Greve, in Gasp6 Bay, in from 20-50 fathoms ; and a few 

 larger ones, in 1871-73, to the north, south-east and south of the Island of 

 Anticosti, in 200 fathoms mud. These were identified with Friele's R. Jan- 

 Mayeni by Verrill in 1879, and before that year they had been referred to 

 Rissoa scrohiculata, Moller, on the authority of Jeffreys. 



A few specimens of this species have been found fossil in the Leda clay of 

 Montreal, by Sir J. W. Dawson. 



Cingula (Onoba) aculeus, Gould. 



Cingula aculeus, Gould (1841). 

 Rissoa aculeus, Stimpson (1851). 



Grand Manan Island, " in the littoral zone, rare " (Stimpson) ; shores of 

 the Bay of Fundy, common (Verrill). 



Family Skeneiidce. 

 Skeneia planorbis (Fabriciua). 



Turlo planorbis, O. Fabricius (1780). 

 Skenea planorbis, Fleming (1828) ; et auct. 

 Skenea serpuloides, Gould (1841). 



Nova Scotia (Willis) ; very common on all rocky shores in Massachusetts 

 Bay, Casco Bay and the Bay of Fundy (Verrill) ; Greenland (Fabricius). 



