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Taxonomy
Family: Subfamily:
CHAROPIDAE: PHENACOHELICINAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Heterobranchia (Subclass)
> Euthyneura (Infraclass)
> Tectipleura (Subterclass)
> Eupulmonata (Superorder)
> Stylommatophora (Order)
> Helicina (Suborder)
> [unassigned] Helicina (Infraorder)
> Punctoidea (Superfamily)
> Charopidae (Family)
> Phenacohelicinae (Subfamily)
> Costallodiscus (Genus)
> pegasus (Species)
Images: Costallodiscus pegasus Marshall & Barker, 2008
Holotype, collected 21 Feb 1972, Scout Bay, Port Pegasus, Stewart Island, NZ (M.029630). 4.5mm. © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Holotype, collected 21 Feb 1972, Scout Bay, Port Pegasus, Stewart Island, NZ (M.029630). 4.5mm. © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Holotype, collected 21 Feb 1972, Scout Bay, Port Pegasus, Stewart Island, NZ (M.029630). 4.5mm. © Museum of New Zealand Te Papa Tongarewa (CC-BY-NC-ND)
Collected Feb 1972, Head of Easy Harbour, SW Stewart Island, NZ. 3.4mm. Reproduced courtesy of Dave Roscoe
Collected Feb 1972, Head of Easy Harbour, SW Stewart Island, NZ. 3.4mm. Reproduced courtesy of Dave Roscoe
Collected Feb 1972, Head of Easy Harbour, SW Stewart Island, NZ. 3.4mm. Reproduced courtesy of Dave Roscoe
Taxonomy
Family: Subfamily:
CHAROPIDAE: PHENACOHELICINAE
Full Classification:
Mollusca (Phylum)
> Gastropoda (Class)
> Heterobranchia (Subclass)
> Euthyneura (Infraclass)
> Tectipleura (Subterclass)
> Eupulmonata (Superorder)
> Stylommatophora (Order)
> Helicina (Suborder)
> [unassigned] Helicina (Infraorder)
> Punctoidea (Superfamily)
> Charopidae (Family)
> Phenacohelicinae (Subfamily)
> Costallodiscus (Genus)
> pegasus (Species)
Details: Costallodiscus pegasus Marshall & Barker, 2008
Size/Grows to:
Width 4.5mm
Distribution:
Stewart Island
Geographical Range:
L.E.
Notes:
Land, Endemic
Distribution Map
 
References and Publications
  • Marshall, B.A., Barker, G.M. 2008 A revision of the New Zealand land snails referred to Allodiscus Pilsbry, 1892 and Pseudallodiscus Climo, 1971, with the introduction of three new genera (Mollusca: Gastropoda: Charopidae), Tuhinga: Records of the Museum of New Zealand Te Papa Tongarewa, 19 (p.153) Original Description

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
E =
Endemic
I =
Introduced
R =
Recent
Sf =
Subfossil
Fo =
Fossil
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