Note 312 — Front matter (continued 4)
Reading edition
As an instance M. de Quatrefages cites Haeckel's own words, from his Anthropogenie. "The Vertebrate Ancestor No. 15, akin to the Salamanders, must have been a species of Saurian (Lizard). There remains to us no fossil relic of this animal; in no respect did he resemble any form actually existing. Nevertheless, comparative anatomy and ontogeny authorize us in affirming that he once existed. We will call this animal Protamnion."