184 

 BucciNUM CYANEUM, var. Perdix (or Finmarchianum). 



Tritonium grcenlandicum, var. perdix (Beck) Morch (1869). 



Tritonium grcenlandicum, var. glahrmii, Morch (1869). 



Buccinum finmarchianum (Verkruzen) Friele (1877) ; and G. O. Sare (1878). 



Buccinnm yrmilandicum, var. finmarchiamim, Jeffreys (1880). 



Buccinum cyaneum, variety, Perdix or Finmarchianum, Verrill (1882). 



Professor Verrill (op. cit., pp. 492 and 493) says that specimens of B. 

 cyaneum were dredged by the U. S. Fish Commission, on the Le Have Bank, 

 in 1872, off Cape Sable, and off Halifax, N.S., in 1877. " Some of our speci- 

 mens," he adds, "belong to the dark variety tenehrosum, Han. ; others are near 

 the variety Finmarchianum, Verkruzen. The variety per-dix or glabra, 

 Morch (Catal. Moll. Spitzberg., p. 14, 1869) is probably the same thing as 

 the latter." 



Buccinum cyaneum, var. patulum. 



Buccinum grcenlandicum, var. patulum, G. O. Sars (1878). 

 Buccinum cyaneum, var. patulum, Verrill (1882). 



" From Murray Bay, mouth of the St. Lawrence River, Principal Dawson 

 has Bent me specimens of a peculiar rather small form, belonging apparently 

 to this species. The aperture is unusually broad, with the lip expanded and 

 patulous anteriorly, projecting decidedly beyond the columella. The surface 

 is eroded, but was nearly smooth, without ribs, and with fine wavy, unequal 

 spiral lines, mostly indistinct; one specimen has several larger, distant, 

 raised spiral lines. The colour is dark brownish ; inside of aperture purplish 

 or livid brown." " Fossil in the Post-pliocene of Canada" (Verrill ; op cit., 

 p. 494.) 



Buccinum tenue. Gray. 



Buccinum tenue. Gray (1839) ; teste Stimpson. 

 Buccinum scalariforme (Beck) Moller (1842). 



"Dredged alive, in considerable numbers, in 1877, by the U. S. Fish 

 Commission SS. Speedwell, off Cape Sable, N.S., in 88 to 91 fathoms, on a 

 bottom of fine compact sand, associated with B. cyaneum and Sipho pubescens. 

 Also off Cape Sable, 22 miles, 59 fathoms; mouth of Halifax Harbour, 21 

 fathoms, 9 living young; off Halifax, 9 to 12 miles, 42 to 92 fathoms. It 

 had not been found so far south previously. These .specimens all belong to 

 a small race of the species" (Verrill; op. cit., p. 495). 



The typical form had previously been dredged at many localities in the 

 Gulf and mouth of the River St. Lawrence, by the writer, and Sir J. W. 

 Dawson, and just inside of the Strait of Belle Isle by Packard. In the 

 writer's experience, B. tenue is the commonest species of Buccinum in the 

 Gnlf of St. Lawrence, at depths of from about 10 to 60 fathoms. It occurs 



