Heisler, N.; Forcht, G.; Ultsch, G.R.; Anderson, J.F. (1982). "Acid-base regulation in response to environmental hypercapnia in two aquatic salamanders, Siren lacertina and Amphiuma means". Respiration Physiology. Quyển 49 số 2. tr. 141–58. doi:10.1016/0034-5687(82)90070-6. PMID6815749.
iucnredlist.org
Geoffrey Hammerson (2004). Amphiuma means. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2.
nih.gov
pubmed.ncbi.nlm.nih.gov
Heisler, N.; Forcht, G.; Ultsch, G.R.; Anderson, J.F. (1982). "Acid-base regulation in response to environmental hypercapnia in two aquatic salamanders, Siren lacertina and Amphiuma means". Respiration Physiology. Quyển 49 số 2. tr. 141–58. doi:10.1016/0034-5687(82)90070-6. PMID6815749.