Labyrinthus umbrus is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Labyrinthidae.
This taxon was described as Labyrinthus umbrus by Fred Gilbert Thompson from Rancho Grande, Aragua in Venezuela in 1957.
Alan Solem considered this taxon as a subspecies Labyrinthus leucodon umbrus in 1966.
Distribution This species occurs in: VenezuelaSolem A. (31 May) 1966. The Neotropical land snail genera: Labyrinthus and Isomeria (Pulmonata, Camaenidae). Fieldiana: Zoology, volume 50: page 58-59. El Hatillo Municipality, Miranda, Venezuela
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