MARINE MOLLUSKS MACGINITIE 83 



Distribution: The Parry Islands and Newfoundland to Cape Cod 

 (Thorson, 1944), Great Britain, Sweden, Norway, Iceland, Greenland. 

 This species is new to Alaska. The Point Barrow specimens represent 

 a westward extension of range from about long. 120° to 156° W. 



Order CTENOBRANCHIA 



Suborder PTENOGLOSSA 



Family EPITONiroAE 



Genus Epitonium Roding, 1798 



Epitonium greenlandicum (Perry, 1811) 



Plate 5, figures 2, 3 



Scalaria greenlandica G. Perry, 1811, appendix, pi. 28, fig. 8. 



Epitonium groenlandicum Morris, 1951, p. 122, pi. 27, fig. 6. — Clench and Turner, 

 1952, p. 320, pi. 131, fig. 2; pi. 154, figs. 1-3. 



Twenty specimens were collected at depths ranging from 110 to 522 

 feet but only four of these were living; the others were usually worn or 

 broken and encrusted with barnacles and bryozoans. Two live 

 specimens (38 and 39 mm. long) were taken at 152 feet, 1 (36 mm.) 

 at 216 feet, and 1 (25.5 mm.) at 328 feet. The dead shells range 

 between 11.5 and 59.0 mm. in length. Except for a narrow brownish 

 border around the thin edge, the operculums of these specimens are 

 jet black. 



Other material examined. — About 30 specimens from the 

 Aleutians and from 15 miles north of Cape Prince of Wales. 



Distribution: Spitzbergen south to southern Norway, Godhavn, 

 Greenland, south to Montauk Point. L. I. (Clench and Turner, 1952); 

 coasts of Siberia and Alaska south to Wrangell and to northern Japan. 



Suborder TAENIOGLOSSA 



Family LACUNIDAE 



(ienus Aquilonaria Dall, 1887 



Aquilonaria tiirneri Dall, 1887 



Plate 2, figures 8, 9 

 Aquilonaria turneri Dall, 1887, p. 204, pi. 3, figs. 1-3. 



Three live specimens and one shell of this rare species were taken 

 1 shell (7.9 high by 5.9 mm. wide) at 217 feet; 1 living specimen (6.3, 

 by about 5.0 mm.) at 477 feet; 1 (4.0 by 3.5 mm.) at 453 feet; and 

 1 (14.3 by 10.2 mm.) at 151 feet. 



Discussion: In August 1882 L. M, Turner took 3 specimens of 

 this species from the ooze filling the crevices of rocks at Labrador's 

 reef, Ungava Bay, and in the summer of 1885 Captain Healy took 



