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Pleuropoma parvula

False Necklace-Shell

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Image:	Adult	44KB

General Information

COMMON NAMES: False Necklace-Shell

GLOBAL DISTRIBUTION: NATIVE Cook Islands (Southern Group)

COOK ISLANDS STATUS: Native, Endemic of Cooks; S.Group (Rarotonga ?extinct, Outer Islands status unknown); Land, coastal forests; forest floor

SIGNIFICANCE LIST: Cultural, Adornment

KEY FEATURES: Similar to except is reddish-brown and sometimes had a sutural and basal reddish band.

SIMILAR SPECIES: See under Yellow Necklace-Shell (Orobophana flavescens)

Cook Islands Distribution

View Distribution Map

Southern Group: Present Makatea: Present
RR	MG	AT	MK	MT	AK	PL	TK	MN
P?X	P	P			P

Northern Group:
TN	MH	RK	PK	NS	SW

Key to Symbols

blank	no data
-	absent	L	localised
X	extinct 'naturally'	W	widespread
XQi	quarantine intercepted	R	recent
XQe	eradicated	?	query preceding category
P	present	T?	taxonomic query
S	seasonal	nn	present, said to have no name
O	occasional	?1	present, name not investigated
++++	very common	?2	presence not verified, no name recorded
+++	common	N/A	absent, name not expected
++	uncommon
+	rare
Cook Islands islands: RR =Rarotonga, MG = Mangaia, AT =‘Ātiu, MK=Ma‘uke, MT=Miti‘āro, AK=Aitutaki, PL=Palmerston, PN=Penrhyn, MN=Manuae, TK=Takūtea, TN=Tongareva (TS=Tongaleva Spoken, TW=Tongareva Written, they say "el" but write "r"), MH=Manihiki, RK=Rakahanga, PK=Pukapuka, NS=Nassau, SW=Suwarrow. After a Polynesian name: ^=orthography query. Countries and other: FIJ=Fiji, WT=Wallis & Futuna, SAM=Samoa, TON=Tonga, NIU=Niue, CK=Cook Islands, CKM=Cook Islands Māori, FP=French Polynesia, AUS=Australs, SOC=Societies, TAH=Tahiti, TUA=Tuamotus, MQS=Marquesas, MNG=Mangareva, PIT=Pitcain group, EAS=Easter Island, HAW=Hawai‘i, NZ=New Zealand, NZM=New Zealand Māori

Scientific Taxonomy

Pleuropoma parvula (Pease, 1868)
SYNONYMS: Helicina parvula (Pease, 1868); Orobophana parvula (Pease, 1868)

TAXONOMY: ANIMALIA; MOLLUSCA; GASTROPODA; PROSOBRANCHIA; Archaeogastropoda; Neritacea; HELICINIDAE

More Information

SIGNIFICANCE NOTES -
POSITIVE SIGNIFICANCE: Cultural, Adornment. Comments: This landsnail is collected after rain on the makatea islands to make shell necklaces (‘ei).

Vouchers & References

Vouchers:
Rarotonga: specimens, "exceedingly abundant on all the islands [specifically Rarotonga, Aituaki, Mangia and Atiu]", 1865-69, Garrett with ID as Helicina parvula; live specimens, Motutapu in Muri, 1994/08, J.Craig, ID as Orobophana parvula; dead specimens only, Motutapu in Muri, 2005/10, presumed extinct, Fred Brook rpt 2005/11 ID as Pleuropoma parvula, yet Garrett 1881 found it abundant - check Motutapu again. Mangaia: specimens, "exceedingly abundant on all the islands [specifically Rarotonga, Aituaki, Mangia and Atiu]", 1865-69, Garrett with ID as Helicina parvula Atiua: specimens, "exceedingly abundant on all the islands [specifically Rarotonga, Aituaki, Mangia and Atiu]", 1865-69, Garrett with ID as Helicina parvula Aitutaki: specimens, "exceedingly abundant on all the islands [specifically Rarotonga, Aituaki, Mangia and Atiu]", 1865-69, Garrett with ID as Helicina parvula

References:
None recorded.

Data Update History (information):
zTX, zB02, zupB05b, zM05b, zD02

Web Resources

Citation Information

McCormack, Gerald (2007) Cook Islands Biodiversity Database, Version 2007.2. Cook Islands Natural Heritage Trust, Rarotonga. Online at http://cookislands.bishopmuseum.org.
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