Unicorn snail, miniature awlsnail

Shells from George Montagu’s collection.

This species was introduced as British by Pulteney (1799) and restated by Maton & Rackett (1807) and then by Montagu, all referrring this taxon to Linnaeus. Montagu (1808) was reluctant to accept this species as British but it would appear that specimens were in circulation in the early 19th century. The Lyons collection, (dating from around 1810) in Tenby contains two lots both with Weymouth (from Miss Pocock) as their origin, and in keeping with the original record of Pulteney. The RAMM label gives the source as “Mr Dillwin, Bantry Bay” and this would coincide with Dillwyn’s visit to Ellen Hutchins the Irish botanist in 1809.

The RAMM and Tenby shells are in good condition but it is not known if they were collected from sites in the UK or from collections brought back from its native Caribbean.


In January 2020 the Montagu Collection was awarded Designated status by Arts Council England. This mark of distinction recognises the collection’s international significance to the scientific community - it is the most intact and taxonomically important collection of British shells of the early 19th century (1800-1816) to be found anywhere in the UK.

For more information see Oliver PG, Morgenroth H (2018) Additional Type and other Notable specimens of Mollusca from the Montagu Collection in the Royal Albert Memorial Museum & Art Gallery, Exeter. Zoosystematics and Evolution 94(2): 281-303. https://doi.org/10.3897/zse.94.24776

Object Summary

Accession Loan No.
Moll4275
Collection Class
Molluscs
Collection Area Region
Caribbean
Collector Excavator
Montagu, Colonel George (from the collection of)
Common Name
unicorn snail, miniature awlsnail
Simple Name
mollusc: shell
Period Classification
George III (1760-1811)
Production Town
Production Person Initials
Production Person Surname
Production Year Low
Production Year High

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Achatinidae: Subulina octona (Bruguière, 1789)