1. A new species of trypanosome from the salamander Ambystoma gracile with notes on a collection of amphibian blood smears;Lehmann;J. Parasitol.,1954
2. On the cytology and life-history of Trypanosoma diemyctyli and the polynuclear count of infected newts (Triturus viridescens);Nigrelli;Trans. Am. Microscop. Soc.,1929
3. Trypanosomes from North American amphibians, with a description of Trypanosoma grylli Nigrelli (1944) from Acris gryllus (LeConte);Nigrelli;Zoologica,1945
4. Sur un trypanosome de Triton pyrrhogaster;Ogawa;Compt. rend. soc. biol.,1913