Crossodactylus aeneus Müller, 1924, Senckenb. Biol., 6: 171. Holotype: ZSM 2/1924, now lost according to Glaw and Franzen, 2006, Spixiana, München, 29: 171. Type locality: "Barreira (Wasserstation der Bahn nach Therezopolis in 500 m Höhe am Südosthang der Serra dos Orgaes [= Órgãos]), Staat Rio de Janeiro", Brazil.
Muller's Spinythumb Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 71).
States of Rio de Janeiro and São Paulo, Brazil.
See account by Cochran, 1955 "1954", Bull. U.S. Natl. Mus., 206: 244-246. In the Crossodactylus gaudichaudii group of Caramaschi and Sazima, 1985, Rev. Brasil. Zool., 3: 43-49.
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