INDEX 



To names of Classes, Orders, Sub-Orders, and Genera ; to technical terms ; and to 

 names of Authors discussed in the text. 



aboral pole, 2 

 Actinians, 19 

 Agassiz, A., 2 

 Agassiz, L., 2 

 Alcinoe, 21 

 Allman, 2 

 ampullae, 4 

 Anthomedusae, 13 

 Anthozoa, 15 

 Arachnactis, 15 

 axis, 2 



balancers, 5 

 balancing organ, 6 

 lleroe, 23 

 Beroidae., 6, 22 

 Bethe, 5 

 blastopore, 10 

 Bftina, 9, 12, 21 

 Bolinidae, 21 

 Bolitwpsis, 21 

 breeding season, 9 

 Brown, P., 1 



Callianira, 20 

 Callianirinae, 20 

 Calymma, 21 

 Calymmidae, 21 

 Cestidae, 6, 21 

 Cestoidea, 21 

 Cestus, 21 

 Chamisso, 2 

 Cliaristephane, 9, 20 

 Chun, 2, 8, 10, 12 

 Coelentera, 12, 16 

 Coeloplanu, 16-19, 22 

 combs, 2, 6, 17 

 costae, 2, 6 

 Ctenaria, 13, 14 

 ctenes, 2 



Ctenoplana, 16-19, 22 

 Cydippidae, 6 

 Cydippidea, 19 



Delopea, 9, 17, 21 

 J)e'iopeidae, 21 

 development, 9-12 

 Dissogony, 12 



Eleutheria, 15 

 embole, 10 

 embryo, 10 

 enteron, 4, 19 

 eolidiform appendages, 8 

 epiblast, 10 

 epithelium, 8 

 Eschscholtz, 2 

 Euchariilae, 21 

 Kucliaris, 9, 12, 21 

 fluchlvra, 9, 20 

 Euplokamis, 20 

 Enramphaea, 21 

 Euramphaeidae, 21 

 excretory pores, 4 



Fol, 2 



Gaimard, 2 



gastrovascular canals, 4 

 cavity, 15 

 gastrula, 12 

 Gegenbauer, 2 

 gelatinous matrix, 8 

 gland cells, 8 

 gonads, 4, 9 



Haeckel, E., 13 

 JIapalia, 21 

 Hertwig, R., 5 

 histology, 8 

 Hormiphora, 2, 20 

 hypoblast, 10 



Infundibulum, 2 

 interstitial tissue, 8 



Kolliker, 2 



Korotneff, 16 

 Kowalevsky, 2 



Lampetia, 17, 20 

 Lang, A., 12, 16 

 larvae, 12 

 lasso-cells, 8 

 Lesueur, 2 

 Lesiieuria, 30 

 Lemeuridae, 20 

 Leuckart, 2, 15 

 Lobatae, 6, 20 

 locomotion, 6 

 Lophoctenia, 20 



macromeres, 10 

 Martens, F., 1 

 Medusae, 13 

 Mertensidae, 20 

 MerteiisinaC) 20 

 mesenchyme, 19 

 mesoblast, 9, 10 

 metamorphosis, 12 

 Metgchnikoff, 2, 9, 16 

 micromeres, 10 

 Mnemia, 21 

 Mnemiidae, 21 

 Mnemiopsis, 21 

 mouth, 2 

 musculature, 8 



Nemertines, 19 

 nephridia, 13 

 nerve stimuli, paths of, 

 nervous system, 5 



Ocyroe, 21 

 Ocyroidae, 21 

 oral pole, 2 

 otoliths, 5 

 ova, 9 



