1876C.E., E. Ray Lankester, The History of Creation (translated), D. Appleton & Co.; Volume II, appendix, page #386:
This Cunina (12) is very differently constructed ; it has a flat, semi‐globular cup without proboscis, consists in early life of six divisions, later of sixteen, and has sixteen bag‐shaped sexual organs, and sixteen short, stiff, and strongly curved tentacles. A further explanation of this wonderful allœogenesis may be found in my “ Contributions to the Natural History of the Hydromedusæ.”
1876C.E., Alexander Agassiz, in The American Journal of Science and Arts; series three, Volume XI of number CXI, page #421:
Proved now to be in the wrong, we expect therefore justice without mercy from this stern scientific critic, and look forward in the next number of the Jenaische Zeitschrift for a thorough castigation of Hæckel by Hæckel, showing up the absurdity of allœogenesis and all that hangs thereby.
