Pleurodontidae [SEP] parent taxon
Pleurodontidae
Pleurodontidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Helicoidea.
This family is classified within the clade Stylommatophora within the clade Eupulmonata (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). This family has no subfamilies.
The family Pleurodontidae includes some American taxa that used to be included within the Australasian family Camaenidae, a taxon whose monophyly was in doubt.
Anatomy.
Pleurodontids are defined by a missing diverticulum. However the diverticulum is
Labyrinthus umbrus
Labyrinthus umbrus is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Pleurodontidae.
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:
- Venezuela
- El Hatillo Municipality, Miranda, Venezuela