Thelidomus aspera

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Thelidomus aspera
Thelidomus aspera shell.jpg
Black-and-white photo of an apertural view of a shell of Thelidomus aspera from Jamaica. Scale bar = 1 cm.
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia

clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra

Superfamily: Helicoidea
Family: Pleurodontidae
Genus: Thelidomus
Species: T. aspera
Binomial name
Thelidomus aspera
(Férussac, 1821)
  • Helix granosa

Thelidomus aspera is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Pleurodontidae.


This species occurs in Jamaica.[1]

This species has not yet become established in the USA, but it is considered to represent a potentially serious threat as a pest, an invasive species which could negatively affect agriculture, natural ecosystems, human health or commerce. Therefore it has been suggested that this species be given top national quarantine significance in the USA.[2]



Thelidomus aspera is a host for larvae of the parasites Angiostrongylus cantonensis[3] and Aelurostrongylus abstrusus.[3]


  1. ^ Rosenberg G. & Muratov I. V. 11 August 2005. RECENT TERRESTRIAL MOLLUSKS OF JAMAICA.
  2. ^ Cowie R. H., Dillon R. T., Robinson D. G. & Smith J. W. (2009). "Alien non-marine snails and slugs of priority quarantine importance in the United States: A preliminary risk assessment". American Malacological Bulletin 27: 113-132. PDF.
  3. ^ a b Lindo J. F., Waugh C., Hall J., Cunningham-Myrie C., Ashley D., Eberhard M. L., Sullivan J. J., Bishop H. S., Robinson D. G., Holtz T. & Robinson R. D. (2002). "Enzootic Angiostrongylus cantonensis in Rats and Snails after an Outbreak of Human Eosinophilic Meningitis, Jamaica". Emerging Infectious Diseases 8(3):

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