Dear Olivier,

I don't know any reports from New Jersey, Alboran sea and W. Morocco, only
from North Europe to Portugal.
The reports of Colus gracilis from the Mediterranean are "fossil shells or
incorrect classifications as Colus jeffreysianus"[Sabelli et al. (1992):
Annotated check-list of Mediterranean marine mollusks, vol. 2, page 399]

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Reports in my library (Colus gracilis in the ölder literature also as Sipho,
Neptunea, Chrysodomus):

Bouchet, Ph. & A. Warén (1985): Revision of the northeast Atlantic bathyal
and abyssal
Neogastropoda excluding Turridae (Mollusca, Gastropoda)
Boll. Malacologico, Milano, Supplement 1, page 227

Friele, H. & J. Grieg (1901): The Norwegian North-Atlantic Expedition,
1876-1878. Vol. 7, Zoology, Mollusca III.
Grondahl & Son, Christiania, 1901, 131 pp., page 103
Dear Olivier,

Hayward, P.J. & J.S. Ryland (1998): Handbook of the Marine Fauna of
North-West Europe
Oxford University Press, Oxford - New York - Tokyo, Repr. (with corrections)
1998, 800 pp., page 535

Hoisaeter, T. (1986): An annotated check-list of marine molluscs of the
Norwegian coast and
adjacent waters.
Sarsia, 1986, 71: 73-145, page 94

Martens, von (1903): Die beschalten Gastropoden der deutschen
Tiefsee-Expedition 1898-1899.
A. Systematisch-geographischer Teil. Wissenschaftl. Ergebn. der Deutschen
Tiefsee-Expedition
auf dem Dampfer "Valdivia"  1898-1899, 7: 1-146, 5 Taf., page 3

McKay, D.W. & S.M. Smith (1979): Marine Mollusca of East Scotland.
Publ. Royal Scottish Museum, Edinburgh, 1979, 185 pp., page 20

Nobre, Aug. (1838-1940): Fauna Malacologica de Portugal - Molluscos marinhos
e das aguas salobras
Porto, 806 pp., 87 pl., page 171

Oskarsson, I. (1982): Skeldyrafana Islands,
Prentsmidjan Leiftur HF., Reykjavik, 1982, 351 pp., page 256

Pain, T. (1978): The genus Colus Roeding, 1798, in Western Europe.
La Conchiglia, 1978, 10 (114-115): 3-7.

Rolán Mosquera, E. & G.P.G. Pedrosa (1981): Molluscs collected at the
Galicia Bank (Spain).
La Conchiglia, 1981, 13 (150-151):6-7, 10, (page 6, fig. page 10)

Smith, S. M. & Heppell, D. (1991): Checklist of British Marine Mollusca,
National Museums of Scotland Information Series No. 11, 1991, 114 pp., page
33

Cordially,
Gert