General Information

GLOBAL DISTRIBUTION: NATIVE Fiji / Tuvalu - Cooks, Marquesas COOK ISLANDS STATUS: Native, in decline due to habitat loss (2005); S.Group at least; Land, coastal forest only; cryptogenic, under wood and stones KEY FEATURES: Spiralled high-domed shell, 4mmØ. SHELL yellowish horn-colour, silky above; spiral suture relatively deep; 4th whorl angular, but 5th round; columella slightly in-turned hidding 30% superficial perforation (12x in shell Ø). ANIMAL dark; tail horn blunt and shorter than sole-tip.

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

Liardetia samoensis (Mousson, 1865)
SYNONYMS: Microcystis samoensis (Mousson, 1865); Nanina samoensis Mousson, 1865; Helix striolata Pease, 186) [name invalid, preoccupied]; Liardetia (Liardetia) striolata (Pease, 1860)

TAXONOMY: ANIMALIA; MOLLUSCA; GASTROPODA; PULMONATA; Stylommatophora; Sigmurethra; Aulacopoda; Limacacea; HELICARIONIDAE (=Zonitoids)

Vouchers:
Rarotonga: specimens, report 1881 Garrett, as Microcystis samoensis, very abundant under wood and stones in forest near the shore; specimens, 2005/10, Fred Brook as Liardetia samoensis, very rare in coastal forest remnants, "evidently in decline and is threatened by coastal development" in report 2005/11.

References:
None recorded.

Data Update History (information):
zTX, zB02, zupB05b, zM07a, zD05b

Web Resources

• Google
• Google Images