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Range DescriptionThe distribution of L. castroviejoi is limited to the Cantabrian Mountains in the northwest of Spain (Flux and Angermann 1990). It occupies elevations of 1,000 to 1,900 m between Sierra de los Ancares and Sierra de Pena Labra (Flux and Angermann 1990, Ballesteros 2003). The total distribution is approximately 25 - 40 km from north to south, 230 km east to west (Flux and Angermann 1990). It is estimated that the extent of occurrence is 5,000 km (Ballesteros 2003). This species is considered fragmented, as it occupies highly specialized patches of habitat that is scarce (Ballesteros, in press).