Lesser white-toothed shrew
|Lesser White-toothed Shrew|
|Lesser White-toothed Shrew range|
The Lesser White-toothed Shrew (Crocidura suaveolens) is a tiny shrew with a widespread distribution in Africa, Asia and Europe, but not in most of Spain, north–west France and mainland Great Britain. Its preferred habitat is scrub and gardens and it feeds on insects, worms, slugs, snails, newts and small rodents. The closely related Asian Lesser White-toothed Shrew (Crocidura shantungensis) was once included in this species, but is now considered to be a separate species.
Like the common shrew, a female lesser white-toothed shrew and her young may form a "caravan" when foraging for food or seeking a place of safety: each shrew grips the tail of the shrew in front so that the group stays together.
The Scilly Shrew
The population found on the Isles of Scilly, off the southwest coast of England, was once thought to be a sub-species, Crocidura suaveolens cassiteridum, and is known as the Scilly Shrew. Skull and tooth measurements of individuals from Scilly are found to be intermediate in size of those in the Channel Islands and the darker fur of the Scilly specimens is not considered a valid reason for the naming of a sub-species. It is unusual in that it can be found on the islands' beaches. Archaeological remains indicate that it was present on the islands in the bronze age, so it may have been present before the Isles of Scilly became separated from the European continent, or may have migrated from the Channel Islands or Europe onboard ships.
In July 1924 W N Blair found an unknown species of shrew on Gugh and sent it to the mammal expert, Mr Hinton, at the British Museum. This specimen, held at the museum, is the type for the species. Ten years earlier H N Robinson found an unknown rodent at Old Town St Mary's and sent it to Mr F W Smalley "who had the largest collection of rodents in the country". The Scillonian name for the animal is "teak" or "teke". In 2010, a Scilly shrew made headlines on BBC Cornwall when it stowed away on the passenger ferry RMV Scillonian III. It was only discovered as the ship was about to arrive in Penzance. The shrew was flown back to the Isles of Scilly the next day on a Skybus plane and then released back into its natural environment.
- Hutterer, R. (2005). Wilson, D. E.; Reeder, D. M, eds. Mammal Species of the World (3rd ed.). Johns Hopkins University Press. p. 250. ISBN 978-0-8018-8221-0. OCLC 62265494.
- Insectivore Specialist Group (1996). Crocidura suaveolens. 2006. IUCN Red List of Threatened Species. IUCN 2006. www.iucnredlist.org. Retrieved on 2006-05-12. Database entry includes a brief justification of why this species is of least concern
- "Lesser white-toothed shrew". ARKive. Retrieved 21 December 2010.
- Harris, S; Yalden, D. W. "Mammals of the British Isles". The Mammal Society.
- Lord D (2009). In CISFBR, ed. Red Data Book for Cornwall and the Isles of Scilly (2nd ed.). Praze-an-Beeble: Croceago Press. pp. 402–417. ISBN 978-1-901685-01-5.
- "Scilly shrew". Isles of Scilly Wildlife Trust. Retrieved 21 December 2010.
- Blair, W.N. (1926) Blair's White-toothed Shrew. Scillonian 5:164-5.
- Robinson, H.W. (1925) A New British Animal Discovered in Scilly. Scillonian 4: 123-4
- Cornish ferry stowaway shrew flown home, 17 June 2010 (accessed 2011-08-16)