Requested reference
Nishikawa, Y. (1977c). [Spider's thread]. Comm. Book 61th Birthd. Dr. T. Yaginuma, Osaka, pp. 4-34. 
-- Show included taxa
Nishikawa, Y. (1977c). [Spider's thread]. Comm. Book 61th Birthd. Dr. T. Yaginuma, Osaka, pp. 4-34. -- Show included taxa