Geomalacus oliveirae

Geomalacus oliveirae is a species of air-breathing land slug, a terrestrial pulmonate gastropod mollusc in the family Arionidae, the round back slugs.

Geomalacus oliveirae
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Arionidae
Genus:	Geomalacus
Subgenus:	Arrudia
Species:	G. oliveirae
Binomial name
Geomalacus oliveirae Simroth, 1891[1]

Distribution

Distribution of Geomalacus oliveirae include:

• Portugal (Beira Alta)^[2]
• Spain (Toledo, Cáceres, Salamanca)^[2] - Red List Spain: Sensitive to habitat change (Gómez Moliner et al. 2001).^[2]

Description

Geomalacus oliveirae is a slug light with 4 black colour bands, inner bands are irregularly interrupted, main marginal bands sharply delimited against the light background.^[2] The length of the body of preserved specimen is 20 mm.^[2]

Reproductive system: Genital retractor inserts more anteriorly in the median line of dorsum than in the other species.^[2]

Ecology

Geomalacus oliveirae lives in Portugal in Mediterranean shrubland and on granitic substrate, also under Betula, Pinus and Juniperus trees, below 1300 m.^[2] It lives in Spain under Pinus and in olive orchards.^[2]