Nodilittorina pyramidalis

Nodilittorina pyramidalis
at Long Reef, Australia
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
(unranked):	clade Caenogastropoda clade Hypsogastropoda clade Littorinimorpha
Superfamily:	Littorinoidea
Family:	Littorinidae
Genus:	Nodilittorina
Species:	N. pyramidalis
Binomial name
Nodilittorina pyramidalis (Quoy & Gaimard, 1833)
Synonyms[1]
Echinolittorina pyramidalis (Quoy & Gaimard, 1833) Littorina pyramidalis Quoy & Gaimard, 1833 (original combination) Trochus nodulosus Gmelin, 1791 (invalid: junior homonym of Trochus nodulosus Solander, 1766)

Nodilittorina pyramidalis, commonly known as a pyramid periwinkle, is a species of sea snail, a marine gastropod mollusk in the family Littorinidae, the winkles or periwinkles.^[1]

The subspecies Nodilittorina pyramidalis pascua Rosewater, 1970 is a synonym of Echinolittorina pascua (Rosewater, 1970)

Description[]

The pyramid periwinkle is small, ranging from 2.5 cm to less than 1 cm in length. It is pale grey in colour, with two rows of nodules on the central whirl of its body which are a pale buff colour.

It lives on or above the high tide line, usually clinging to vertical surfaces. Many individuals will cluster together in crevices to maintain moisture.

Distribution[]

Pyramid periwinkles are endemic to Australia and can be found in abundance on both the east and west coasts.

References[]

• Liu, J.Y. [Ruiyu] (ed.). (2008). Checklist of marine biota of China seas. China Science Press. 1267 pp

External links[]

• Quoy J.R.C. & Gaimard J.P. (1832-1835). Voyage de découvertes de l'"Astrolabe" exécuté par ordre du Roi, pendant les années 1826-1829, sous le commandement de M. J. Dumont d'Urville. Zoologie.
• Gmelin J.F. (1791). Vermes. In: Gmelin J.F. (Ed.) Caroli a Linnaei Systema Naturae per Regna Tria Naturae, Ed. 13. Tome 1(6). G.E. Beer, Lipsiae [Leipzig. pp. 3021-3910]
• Reid, D. G.; Williams, S. T. (2004). The subfamily Littorininae (Gastropoda, Littorinidae) in the temperate Southern Hemisphere: the genera Nodilittorina, Austrolittorina and Afrolittorina. Records of the Australian Museum. 56: 75-122

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