158 



Margarita umbilicalis, Broderip and Sowerby. 



A few fine living specimens of this arctic shell have been dredged at Ashe 

 Inlet and Port Burwell, by Dr. R. Bell in 1884 and J. W. Tyrrell in 1885 ; also 

 off Nottingham Island, Hudson Strait, by J. McKenziein 1886. The specimens 

 from Port Burwell referred to on page 60dd of the Report of Progress of 

 this Survey for 1882-83-84, as very large individuals of M. helicina, have 

 since been identified with this species by the writer. 



Dall says that two specimens of M. umbilicalis were taken from the 

 stomach of a codfish, caught in Nachvak Bay or Inlet (Ungava) by L. M. 

 Turner in 1883. " The locality is about 90 miles south of Hudson Strait." 

 "This well distinguished species" (Dall adds) "is more northern in its southern 

 limits than M. helicina, and has been taken at Point Barrow, Cumberland 

 Inlet, Melville Peninsula, and East Greenland ; the latter locality from 

 specimens sent by the second German Polar expedition and catalogued in 

 their report as Trochus helicinus.")* 



Margarita olivacea (Brown). 



Turbo olivaceus, Brown (1827 and 1844). 

 Margarita argentata, Gould (1841 and 1870). 

 Margarita glmica, Moller (1842). 



Grand Manan, "taken alive in four fathoms, coarse sand, off Duck Island 

 boat moorings " (Stimpson). A few living specimens were dredged by the 

 writer off Grande Greve, Gasp^ Bay, in 20-50 fathoms, in 1869; on 

 the north shore of the Gulf of St. Lawrence, off Sawhill Point, in 30 

 fathoms sand, and off the St. John River, near the West Point of Anticosti, 

 in 60 fathoms sand, in 1871. Little Metis, Riviere du Loup and Mur- 

 ray Bay (Sir J. W. Dawson). 



"Fossil — Montreal, rare" (Sir J. W. Dawson). 



Margarita acuminata (Sowerby ?) Mighel? and Adams. 



Margarita acuriiinata ? Sowerby (1838). 

 Margarita acuminata, Mighels and Adams (1842). 



" Gulf of St. Lawrence, taken from th<' stnmach of a codfish, by Mr. Foster, 

 in the summer of 1841. Only a simple specimen was found, which is in the 

 cabinet of J. W. Mighels." Grand Manan, " in 40 fathoms on a soft muddy 

 bottom off the Swallow's Tail " (Stimpson). Not found of late years by any 

 collectors in the Bay of Fundy or Gulf of St. Lawrence. "Arctic Ocean " 

 (Pilsbry). 



* Proceedings of the U. S. National Museum, vol. IX., (1886), p. 206. 



