Requested reference
Ishikawa, S. (1939). [Spiders in the Ryûgadô cave]. Acta Arachnologica 4(4): 162-163. doi:10.2476/asjaa.4.162 
-- Show included taxa
Ishikawa, S. (1939). [Spiders in the Ryûgadô cave]. Acta Arachnologica 4(4): 162-163. doi:10.2476/asjaa.4.162 -- Show included taxa