Template:Ref-Eycleshymer1910
From Embryology
Eycleshymer AC. and Wilson JM. Normal Plates of the Development of the Salamander Embryo (Nectürüs maculosus). Vol. 11 in series by Keibel F. Normal plates of the development of vertebrates (Normentafeln zur Entwicklungsgeschichte der Wirbelthiere) Fisher, Jena., Germany.