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Taxonomy
Family:
PTYCHATRACTIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Neogastropoda (Order)
> Turbinelloidea (Superfamily)
> Ptychatractidae (Family)
> Exilia (Genus)
> expeditionis (Species)
Genus Synonyms:
=Benthovoluta Kuroda & Habe, 1950
=Chathamidia Dell, 1956
=Daphnella (Surculina) Dall, 1908
=Fasciolaria (Mesorhytis) Meek, 1876
=Graphidula Stephenson, 1941
=Mesorhytis Meek, 1876
=Mitraefusus Bellardi, 1873
=Palaeorhaphis Stewart, 1927
=Phenacoptygma Dall, 1918
=Surculina Dall, 1908
=Zexilia Finlay, 1926
Synonymised Names:
=Chathamidia expeditionis Dell, 1956
=Surculina expeditionis (Dell, 1956)
Images: Exilia expeditionis (Dell, 1956)
Holotype, collected 10 Feb 1954, Chatham Rise, NZ (M.009260). © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Taxonomy
Family:
PTYCHATRACTIDAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Caenogastropoda (Subclass)
> Neogastropoda (Order)
> Turbinelloidea (Superfamily)
> Ptychatractidae (Family)
> Exilia (Genus)
> expeditionis (Species)
Genus Synonyms:
=Benthovoluta Kuroda & Habe, 1950
=Chathamidia Dell, 1956
=Daphnella (Surculina) Dall, 1908
=Fasciolaria (Mesorhytis) Meek, 1876
=Graphidula Stephenson, 1941
=Mesorhytis Meek, 1876
=Mitraefusus Bellardi, 1873
=Palaeorhaphis Stewart, 1927
=Phenacoptygma Dall, 1918
=Surculina Dall, 1908
=Zexilia Finlay, 1926
Synonymised Names:
=Chathamidia expeditionis Dell, 1956
=Surculina expeditionis (Dell, 1956)
Details: Exilia expeditionis (Dell, 1956)
Size/Grows to:
Height 42mm, Width 20mm
Distribution:
Trawled off South Island east coast to Chatham Islands, 400-984 metres
Geographical Range:
CFM
Notes:
Marine, Native - Endemic
Distribution Map
 
References and Publications
  • Kantor, Y.I., Bouchet, P., Oleinik, A. 2001 A revision of the Recent species of Exilia, formerly Benthovoluta (Gastropoda: Turbinellidae), Ruthenica, 11 (p.127)
  • Harasewych, M.G. 1987 A revision of the genus Benthovoluta with notes on the evolution of the subfamily Ptychatractinae (Prosobranchia: Turbinellidae), The Nautilus, 101(4) (p.177)
  • Powell, A.W.B. 1979 New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.217)
  • Dell, R.K. 1956 The archibenthal Mollusca of New Zealand, Dominion Museum Bulletin, 18 (p.118) Original Description

*98 © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)

Key to Geographical Ranges
NZ Map showing Geographical Ranges
The symbols K.A.C.F.M.An. are used to indicate the geographical range of the species. They have been adopted to give an approximation of the range of each species within New Zealand.
K=
Kermadec Islands
A=
Aupourian - Kaipara Harbour, north around North Cape, encompassing the Three Kings Islands and south to East Cape
C=
Cookian - Lower North Island and the northern part of the South Island
F=
Forsterian - Otago, Fiordland and Stewart Island
M=
Moriorian - Chatham Islands, Pitt Island
An=
Antipodean - Subantarctic Islands of New Zealand
Fw =
Freshwater
L =
Land
N =
North Island
S =
South Island
R =
Recent
Sf =
Subfossil
Fo =
Fossil