172 



SUBJECT INDEX 



Clytia, 83 



Cnidaria, 85-87 



Coelenterata, 76; Complex characters, 

 78-79, 96-97 

 simple characters, 78 

 most primitive, 79-82 

 relation to Ctenophora, 84-87 

 relation to Porifera, 69-70 

 aberrant forms, 87, 89 



Coelom, 105 



Coelomata, 104, 106 



Coeloplana, 54, 84, 89, 90-94 



Colonies, 36 et seq. 



Convoluta, 93, 102 



Corallium, 78 



Ctenodrilus, 102 



Ctenophora, ancestry, 84, 95 

 coelenterate affinities, 76, 84-87 

 platyhelminth affinities, 89-94 



Ctenoplana, 54, 88, 90-94 



Cucumaria, 117, 121, 131 



Cunina, 85, 86 



Cytula, 62, 63 



DNA (deoxyribosenucleic acid), 12, 

 19 



Daphnia, 9 



Dendrobaena, 102 



Deuterostomia, 102-104 



Dictyostelium, 44 



Dicyema, 72, 73, 75 



Dicyemidae, 72, 74-75 



Dimorpha, 31 



Dinoclonium, 34, 35 



Dinofiagellates, 33, 41 



Diplodinium {Entodinium) , 26, 27, 28 



Earliest fossils, 134 



Echinocardium, 117 



Echinoderm, relationships, 52, 124, 

 129 

 superphylum, 105 



Ectoprocta, 76, 152 



Elasmobranchs, 135, 137 



Embden-Meyerhof cycle, 9, 10, 151 



Enantiazoa, 69 



Entodinium {Diplodinium), 26, 27, 28 



Equus, 145, 147 



Euchlora, 84, 85, 86, 87 



Eudorina, 37, 38, 40 



Euglena, 29, 30 



Euglypha, 65 



Euplectella, 56 



Evolution, definition, 6-7 



Bacteria, 22-25 



Brachiopoda, 144 



Carnivora, 142-144 



horse, 144-149 



Lamellibranchs, 142-143 



life, 13 et seq. 



Mesozoa, 50 



Metazoa, 36 et seq., 50 et seq. 



Platyhelminthia, 50, 94 



Porifera, 54-71 



Protozoa, 24-25, 32-35 



vertebrates, 134 et seq. 



viruses, 21 

 Foraminifera, 33, 44, 65 

 Fossils, 134-137, 145-149 

 Fossil stratification, 137-142 

 Gastrodes, 85, 87 

 Gastrula, 65-68, 69, 97 

 Germ layers, 55, 56, 60, 61, 66-68 

 General theory of Evolution, 7, 157 

 Giardia, 46 



Glycocyamine, 121, 125 

 Glycocyamine phosphate, 125-128 

 Glycera, 123, 127 

 Gonactinia, 116 

 Gonium, 36, 38 

 Grade, 21, 35 

 Grafizoon, 96 

 Grantia, 59-61 

 Gymnodinium, 34, 35, 40 

 Haemoglobin, 8 

 Halichondria, 127, 133 

 Haliclystus, 80 

 Haliphysema, 62, 63-64, 65 

 Haplozoon, 41, 72 

 Heliocidaris, 124, 131 

 Heterotropic bacteria, 23-25 

 Hermione, 126 

 High energy bonds, 11, 12 

 Hirudo, 127, 128 

 Hitodestrol, 131 

 Holothuria, 114, 121, 131 

 Hormiphora, 89 



Horses, evolution of, 144 et seq. 

 Hydra, 11, 79, 81, 82, 83 

 Hydroctena, 85, 87, 89 

 Homoiology, 108, 136 

 Hydrozoa, 68, 76, 77, 79-83, 87, 



94-96 

 Hyracotherium (Eohippus), 146-149 



