Boreoscala greenlandica
(Perry, 1811)
Description:
Dimensions range from 15 mm - 61 mm high and 4 mm - 60 mm wide.
Width to height ratio: 0.27:1 ~ 0.98:1
Shell: attenuate, slender, elongate, conical; chalky, thick; small to medium. Exterior colour uniform greyish tan to chalky white, may be somewhat shiny or without lustre, costae white. About 16 whorls, moderately convex, joined; protoconch with 2-4 whorls smooth, usually eroded; teleoconch with 6-12 whorls moderately convex. Suture moderately impressed, not deep. Imperforate. Approximately 9 - 34 costae on the body whorl. Costae are blade-like to ridge-like, thick, curved and may be expanded at the suture, sometimes nearly covering the intercostal spaces. Costae slightly raised toward the suture; reflected; connected across the suture. Intercostal spaces with flattened spiral striae. Interstices with approximately 8 - 10 spiral striae per whorl. Base with well developed basal ridge with flattened spiral striae below. Base with 3 - 8 spiral striae, Columella short and arched. Aperture subovate to circular, lip thickened. Operculum black, horny, with a narrow brown border..
Distribution:
Probably cireumpolar [Clench & Turner, 1952]. Arctic Ocean near Point Barrow, Alaska, south to British Columbia, Canada; Siberia and northern Japan [Dushane, 1974], Hokkaido to Boso Peninsula, Japan; widely in the northern Pacific, Atlantic, Arctic Ocean [Nakayama, 2003], Circumboreal, Scandinavia, Iceland [Brezinger et al., 2020]; Atlantic south to Long Island [Weil et al., 1999:12]
Habitat:
Shallow subtidal to upper continental slope [ Alf et al., 2020], subtidal to 650 m., sandy mud [Higo, et al., 1999]
Type Material:
Types. The whereabouts of Perry's types isunknown to us. We here restrict the type locality to Godthaab, southwest Greenland, one of the several localities listed by Posselt. The type specimen of Scalaria subulata Couthouy has been lost. The type of Scalaria planicosta Kiener is in the Paris Museum. A cotype of S. grénlandica var. crebricostata G. O. Sars is in the Oslo Museum, Oslo, Norway. for Boreoscala greenlandica (Perry, 1811). [Clench, W. J. & Turner, R. D., 1952]
Types. The type of HE. greenlandicum lovenu A. Adams is probably in the British Museum. The type locality is here restricted to Vardo, Norway. [as Boreoscala greenlandica f. lovenii (A. Adams, 1856)]. [Clench, W. J. & Turner, R. D., 1952]
Types. The holotype of Scalaria groenlandica ornata Friele and Grieg is in the Zoologisk Museum, Universitetet, Bergen, Norway, no. 21669. We figure the holotype from station 124 (N. Lat. 66°41'; EK. Long. 6°59') off Vest Fjorden, Norway. [as Boreoscala greenlandica norvegicum (Clench & R. D. Turner, 1952), Epitonium greenlandicum ornatum Friele and Grieg, Scalaria ornata Friele & Grieg, 1901]. [Clench, W. J. & Turner, R. D., 1952]
Type: Scalaria greenlandicum Perry: Holotype lost (Clench & Turner, 1952: 320); type locality restricted to Godthaab, southwest Greenland (Clench & Turner, loc. cit.). Epitonium (Boreoscala) greenlandicum smithi MacNeil: Holotype USNM 499037; Inner Submarine Beach, Nome for Boreoscala greenlandica (Perry, 1811). [DuShane, H., 1979]
Type not listed in source data for Boreoscala greenlandica (Perry, 1811) - Locality: Greenland (restricted by Clench and Turner, 1952: 320).. [Kazunori, H., 2009]
Types: S. greenlandica, not located; S. loveni, Cambridge Museum. for Boreoscala greenlandica (Perry, 1811) - Locality: S. greenlandica, restricted by Clench & Turner (1952:320) to Godthaab, SW Greenland.. [Bouchet, P. & Warén, A., 1986]
Type not indicated in text [as Cirsotrema (Boreoscala) greenlandicum (Perry, 1811)] - Locality: Greenland. [Nakayama, T., 2003]
Type not located by either Clench & Turner (1952: 320) or Bouchet & Warén (1986: 518). for Boreoscala greenlandica (Perry, 1811) - Locality: restricted to Godthaab, southwest Greenland, by Clench & Turner (loc. cit.).. [Brown, L. & Neville, B.D., 2015]
Type not located for Boreoscala greenlandica (Perry, 1811) - Locality: not designated.. [Brown, L. & Neville, B.D., 2015]
Cotype: ZMO figured by Clench & Turner (1952: 321, pl. 154, fig. 3). [as Scalaria grønlandica var. crebricostata Sars, 1878:] - Locality: Vadsø, Norway.. [Brown, L. & Neville, B.D., 2015]
Type: “ex museo nostro,” presumably the figured specimen. [as Turbo Clathrus groenlandicus Chemnitz, 1795 in Martini & Chemnitz, 1769-1829:] - Locality: Greenland.. [Brown, L. & Neville, B.D., 2015]
Type: Cambridge Museum (Bouchet & Warén 1986: 518). [as Scalaria lovenii A. Adams, 1856:] - Locality: “Ad litt. Scandinaviæ,” restricted to Vardö, Norway by Clench & Turner 1952: 322).. [Brown, L. & Neville, B.D., 2015]
Type not located [as Scalaria grönlandica var. major Kobelt, 1888:] - Locality: not designated.. [Brown, L. & Neville, B.D., 2015]
Type not located [as Scalaria trevelyana var. major Locard 1897:] - Locality: côtes océaniques de France.. [Brown, L. & Neville, B.D., 2015]
Type not located [as Scalaria mediterranea var. major Locard in Locard & Caziot, 1899:] - Locality: Corsica.. [Brown, L. & Neville, B.D., 2015]
Type not located [as Opalia major Pallary, 1900] - Locality: Oran, Algeria.. [Brown, L. & Neville, B.D., 2015]
Type: Zoologisk Museum, Universitetet, Bergen, Norway, no. 21669, figured by Clench & Turner (1952: 324). [as Scalaria goenlandica var. ornata Friele & Grieg, 1901:] - Locality: Norwegian North Atlantic Expedition 1876-78, S.S. Vöringen Station 124, off Trænen, Helgeland, Norway, 66o 41'N, 06o 59'E, 350 fms [= 640 m].. [Brown, L. & Neville, B.D., 2015]
Type: “Collect. du Mus.”; while Clench & Turner (1952: 320) report that the type is at the MNHN, it is not listed in the MNHN type catalog. [as Scalaria planicosta Kiener, 1838:] - Locality: not given.. [Brown, L. & Neville, B.D., 2015]
Type: “My own Collection. Cabinet of Bost. Soc. Nat. Hist. and of N. Y. Lyceum of Nat. Hist.” [ Couthouy, 1838]. Type locality: “Mass. Bay, vicinity of Cape Ann.” Status: a junior primary homonym of Scalaria subulata J. Sowerby, 1812: vol. 4, 125, pl. 390, fig. 1; per Clench & Turner (1952: 320), a junior subjective synonym of Boreoscala greenlandica (Perry, 1811a). [as Scalaria subulata Couthouy, 1838:]. [Brown, L. & Neville, B.D., 2015]
Syntype: KPM-NG0102035 [as Borcoscala groenlandium japonicum (SHIKAMA, 1962)] - Locality: East to southeast of Choshi (eastern central Honshü). [Higo, S., Callomon, P. & Goto, Y., 2001]

Dall, W. H. (1925). Plate 22. Fig. 2.
Boreoscala greenlandica Perry, alt. 52 mm
Distribution
as listed in source literature
Sowerby, J. & Sowerby, J. de C. (1823).
Shown in text as Boreoscala subulata (Couthouy, 1838)
Sowerby, G. B. II. (1844).
Shown in text as Scalaria greenlandica G. Perry, 1811
Sowerby, G. B. II. (1873-1874).
Shown in text as Scalaria greenlandica G. Perry, 1811
Tryon, G.W. (1887).
Shown in text as Scalaria groenlandica Chemnitz, 1795 in Martini & Chemnitz
Clessin, S. (1897).
Dall, W. H. (1925).
Shown in text as Boreoscala greenlandica Perry, 1811
Clench, W. J. & Turner, R. D. (1952).
Shown in text as Boreoscala greenlandica f. lovenii (A. Adams, 1856)
Clench, W. J. & Turner, R. D. (1952).
Clench, W. J. & Turner, R. D. (1952).
Shown in text as Boreoscala greenlandica norvegicum (Clench & R. D. Turner, 1952), Epitonium greenlandicum ornatum Friele and Grieg, Scalaria ornata Friele & Grieg, 1901
Dushane, H. (1979).

pp: 103. Fig. 18.
Figure 18: Boreoscala greenlandica (Perry, 181 1). Greenland From Perry, 181 1 :
pit. 28, fig. 8
























