The Pygidiidæ, a family of South American catfishes Eigenmann, Carl H., 1863-1927 creator text book Pittsburgh Pub. by the authority of the Board of Trustees of the Carnegie Institute 1918 1918
print
ENG Publications of the Carnegie Museum, serial no. 101. Contribution from the Zoölogical laboratory of Indiana University, no. 164. Catfishes AS36 .P75 vol.7, no.5 Memoirs of the Carnegie Museum, v. 7, no. 5 https://www.biodiversitylibrary.org/bibliography/3930 4764119 18027479 10.5962/bhl.title.3930 DLC