Troglobitic harvestmen recentlydiscovered in NorthAmerican lava tubes(Travunii- dae, Erebomastridae, Triaenonychidae: Opiliones)
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New troglobitic harvestmen are described from lava caves in the states of Washington and Idaho . They include species of Travuniidae : Speleonychia sengeri, new genus and species; Erebomastridae : Speleomaster lexi, new genus and species; Speleomaster pecki, new species. The occurrence of a species of Triaenonychidae is recorded. These species are highly modified for darkness and are unrelated to surface species. The family Travuniidae is represented for the first time in the New World . Morphological, ecological and phylogenetic considerations are discussed.
Briggs, Thomas S., "Troglobitic harvestmen recentlydiscovered in NorthAmerican lava tubes(Travunii- dae, Erebomastridae, Triaenonychidae: Opiliones)" (1974). KIP Articles. 5631.