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Eatoniella globosa
	Holotype of Eatoniella globosa from Auckland War Memorial Museum
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Littorinimorpha
Family:	Eatoniellidae
Genus:	Eatoniella
Species:	†E. globosa
Binomial name
	†Eatoniella globosa; Ponder, 1965
Synonyms
	Eatoniella (Dardaniopsis) globosa Ponder, 1965; Eatoniella (Eatoniella) globosa Ponder, 1965;

Eatoniella globosa

Last updated January 22, 2026

Eatoniella globosa is a species of marine gastropod mollusc in the family Eatoniellidae.^[1] It was first described by Winston F. Ponder in 1965. It is endemic to the waters of New Zealand, found in the waters of the upper North Island.

Description

In the original description, Powell described the species as follows:

Shell thin, fragile, inflated, pinkish, semi-transparent. Whorls three, weakly convex, false margined, with subobsolete spiral scratches. Protoconch dome-shaped, similarly sculptured to the adult whorls, from which it is not marked off. Body whorl comprises most of shell, globose; a weak spiral ridge runs around the convex periphery. Umbilicus large, deep, crescentric, surrounded by a sharp ridge. Aperture pear-shaped, with a slightly thickened, strongly retracted, outer lip which has two chinks, one in middle, other posteriorly. Peristome continuous, rather thin, columella very slightly concave. Colour of first two whorls yellowish brown, the rest pinkish. Umbilical region, columella, and outer lip bright pinkish.^[2]

The holotype of the species measures 1.15 mm (0.045 in) in height and with a width of 0.8 mm (0.031 in).^[2] It has a similar but distinct appearance when compared to E. notalabia .^[2]

Taxonomy

The species was first described by Winston F. Ponder in 1965 as Eatoniella (Dardaniopsis) globosa.^[2] In 1995, Hamish Spencer and Richard C. Willan establihed the species' modern name, Eatoniella globosa, removing the subgenus Dardaniopsis.^[3]^[4] The current accepted name of the species is either Eatoniella globosa, or alternatively Eatoniella (Eatoniella) globosa.^[5]^[1] The holotype was collected in 1949 by K. Hipkins from Piwhane / Spirits Bay, to the north of the Aupouri Peninsula in the Far North District, New Zealand. It is held in the collections of Auckland War Memorial Museum.^[6]^[7]

Distribution and habitat

The species is endemic to New Zealand,^[1] found in the waters surrounding the north and north-eastern coasts of the North Island.^[2] In 2005, a specimen of Eatoniella globosa was found off the coast of Raglan, extending its known range to the west coast of the North Island.^[8] Rare specimens have been found in the Tamaki River of Auckland.^[9]

Eatoniella globosa has been shown to live almost exclusively on a species of red Corallina seaweed.^[10]

References

1 2 3 4 Eatoniella globosa Ponder, 1965 . Retrieved through: World Register of Marine Species on 22 January 2026.
1 2 3 4 5 Ponder, W. F. (1965). "The Family Eatoniellidae in New Zealand". Records of the Auckland Institute and Museum . 6: 47–99. ISSN 0067-0464. JSTOR 42906115. Wikidata Q58676802. This article incorporates text from this source, which is under a CC BY 4.0 license.
↑ Spencer, H. G.; Willan, R. C. (1995). "The marine fauna of New Zealand: Index to the fauna. 3. Mollusca" (PDF). New Zealand Oceanographic Institute Memoir. 105: 1–125. ISSN 0083-7903. Wikidata Q66411987.
↑ Morley, Margaret S. (April 1997). "New Zealand Mollusc Name Changes from Powell (1979) to Spencer & Willan (1996)". Poirieria. 20: 13–22.
↑ Maxwell, P.A. (2009). "Cenozoic Mollusca". In Gordon, D.P. (ed.). New Zealand Inventory of Biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Christchurch: Canterbury University Press. p. 205. ISBN 978-1-877257-72-8.
↑ Blom, Wilma M. (2025). "Annotated Catalogue of Fossil and Extant Molluscan Types in the Auckland War Memorial Museum". Bulletin of the Auckland Museum . 22. doi:10.32912/BULLETIN/22. ISSN 1176-3213. OCLC 1550165130. Wikidata Q135397912.
↑ "Eatoniella globosa". Collections Online. Auckland War Memorial Museum . Retrieved 22 January 2026.
↑ Hayward, Bruce W.; Morley, Margaret S.; Blom, Wilma; Grenfell, Hugh R.; Smith, Nancy; Rogan, Doug; Stephenson, A. Brett (2002). "Marine biota of Raglan, Waikato West Coast". Poirieria. 28(b): 1–16. ISSN 0032-2377. Wikidata Q115466507.
↑ Hayward, Bruce W; Morley, Margaret S (2005). Intertidal life of the Tamaki Estuary and its Entrance, Auckland (Report). Auckland Regional Council . Retrieved 15 November 2022.
↑ Berthelsen, Anna (2014). Interactions between subtidal coralline turf and associated small mobile invertebrates (PhD). University of Auckland. hdl:2292/23600.