1. Normal breathing in fishes and the evolution of internal mares;Atz;Quart. Rev. Biol.,1952
2. Influence of Silurian-Devonian climates on the rise of air-breathing vertebrates;Barrell;Bull. geol. Soc. Am.,1916
3. Active respiration of fish in relation to ambient concentrations of oxygen and carbon dioxide;Basu;J. Fish Res. Bd. Can.,1959
4. Notes on the living specimens of the Australian lungfish, Ceratodus forsteri, in the Zoological Society's collection;Dean,1906
5. A comparative study of the extent of gill-surface in some representative Indian fishes, and its bearing on the origin of the air-breathing habit;Dubale;J. Univ. Bombay,1951