476 



SUBJECT INDEX 



Cleavage, 105 



Coelom, 38, 40, 41, 56, 59-70 



Coelom, formation of 109 



Coelom, filled with parenchyma, 65 



Coelom of papillae, 45-46, 49 



Coelomic canal of tentacles, 25, 59-60 



Coelomic fluid, 45 



Coelomic primordia, 118 



Coelomic sac, median, 66 



Coelomic sacs, embryogenesis, 113 



Coelomoducts, 59, 63, 141 



Coelomoducts of protosoma, excretory 



function, 66-70 

 Coelomoducts of metasoma, 66 

 Coelomoducts, protosomal, histology, 



68-70 

 Colonial nature, supposed, 7 

 Colouration, 8-10 

 Commissure, dorsal transverse, 50 

 Connective tissue of heart, 74 

 Copulation, 98 

 Corpus cardiacum, 76 

 Cuticle, 32, 34-35, 42 

 Cytophore, 94 



Diaphragm, 63, 64, 71, 113 

 Diaphragm musculature, 45 

 Digestion, 86 

 Digestion, external, 7, 79 

 Distribution, geographical, 127 

 Distribution, vertical, 123, 127 

 Divisions of body, 1 1 

 Division of body, secondary, 1 1 



Ecology, 123, 128 

 Ectoderm, 108 

 Egg, 10, 103, 104 

 Egg, polarity, 105 

 Embryology, 6, 103, 136 

 Endoderm, 110, 113, 119 

 Endothelium, lack of, 73 

 Enterocoely, 111 

 Enteron, 113 

 Epibionts, 124, 145 

 Epidermis, 32-34 

 Epidermis glandular, 10 

 Epidermis-nerve net, 55 

 Epidermis of papillae, 45 

 Epithelium, 32 

 Epithelium, ciliated, 32, 33 



Epithelium, ciliated, of spermducts, 94 

 Epithelium, ciliated, of tentacles, 85 

 Epithelium, ciliated, of testis, 92, 93 

 Epithelium of oviducts, 102 

 Epithelium, excretory, 8 

 Epithelium and nervous system, 50 

 Epithelium, of papillae, 45-46 

 Epithelium, peritoneal, 46, 59, 64 

 Epizoonts, 124 

 Evasive action, 126 

 Evolution, 140 

 Excretory granules, 65, 66 

 Excretory granules in lumen of coelomo- 



duct, 69 

 Excretory system, 59, 66-70 



Feeding, 86, 126 

 Feeding mechanisms, 6 

 Fertilization, 98, 104, 105 

 Food, 79, 125 

 Fore-part of body, 1 1 

 Frenulum, see Bridle 



Galathea, R.V., 5 



Ganglionic cells, see Nerve cells 



Gastrozooids, 7 



Gastrula, 108 



Gastrulation, 105 



Genital aperture, 20 



Genital papillae, 20, 94 



Genital system, 10, 40, 59, 66, 90, 134 



Genital system, female, 98 



Genital system, male, 90 



Geographical distribution, 6, 127 



Germ cells, 100 



Germ cells, male, 93 



Giant nerve fibres, 54-55, 57-58, 126 



Girdle, glandular, 33 



Girdles of toothed platelets, 17, 18-19, 64 



Girdles of toothed platelets, function, 19, 



55, 125 

 Girdles of toothed platelets, innervation, 55 

 Girdles of toothed platelets, musculature, 



44,55 

 Gland cells, 32, 50 

 Glands, albumen, 32 

 Glands, flask shaped, 38-41 

 Glands, globular, 38-41 

 Glands, multicellular, 38-41, 59, 64 

 Glands, pyriform, 38-41 



