Cook Islands Biodiversity Database

Species Page

Back to: «« Search Page | « Results Page

Add to My List

Physastra nasuta

Multimedia & Additional Resources

Type	Description	Download
Image:	Snails showing tentacles and eyes	35KB

General Information

GLOBAL DISTRIBUTION: NATIVE Australia - PNG - Cooks

COOK ISLANDS STATUS: Introduced - Recent, Naturalised; S.Group - widespread; N.Group - widespread (species ID?); Freshwater, wetlands - ponds - slow streams

KEY FEATURES: Shell is bulbous with short spire, to 20mm long, with a left-hand spire (=sinistral, when looking at opening it opens on your left).

Cook Islands Distribution

View Distribution Map

Southern Group: Present Makatea:
RR	MG	AT	MK	MT	AK	PL	TK	MN
+++			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

Physastra nasuta (Morelet)
TAXONOMY: ANIMALIA; MOLLUSCA; GASTROPODA; PULMONATA; Basommatophora; Lymnacacea; PLANORBIDAE

Vouchers & References

Vouchers:
Rarotonga: specimens+photo, 3/2004, G.McCormack with ID as Physastra nasutaQQ. Mauke: specimens, 1980s, N.Broodbakker with ID as Physastra nasuta. Pukapuka: specimens+photo, 3/2004, G.McCormack with ID as Physastra nasutaQQ.

References:
None recorded.

Data Update History (information):
zTX, zB02, zM04a, 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.
Please refer to our use policy.

Biodiversity Database: More Options | Help

My List: View List | Edit List | Clear List