[1][2] The apertural dentition (if any) consists of a small, short lamella on the parietal wall and a tooth on the parietal-columellar corner of the peristome.

[2] Zospeum zaldivarae was discovered in the Cueva de Las Paúles in the Sierra Salvada in the Province of Burgos in Northern Spain by the biologist and speleologist Pilar Zaldívar in the 1980s.

Zospeum zaldivarae is named after Pilar Zaldívar, who is part of the Niphargus Speleoloical Team and discovered the species.

This species is only known from the type locality, Cueva de Las Paúles in the Sierra Salvada in the Province Burgos in Northern Spain.

Due to the limitation of the species to one locality and according to the Guidelines of the IUCN Red List, it is a vulnerable, narrow range endemic.