330 



INDEX OF NAMES 



Echinus esculentus, habitat, 57 



pedicellariae, 88-9 



parasitised, 149 



food, 288 

 Echinus microtuberculatus, habitat, 



Echinus jniliaris, parasitised, 133 

 Elysia, locomotion, 164 

 Ensis directus, burrowing, 167 

 Enter omorpha, spp., salinity test, 79 



sheltering Copepoda, 83 



description, 305 

 Entomostraca, larval forms^, 267 

 Eiidendriimi, tropism, 233 

 Eulalia viridis, habitat, 67 



protective coloration, 95 

 Eunice, spp., reproduction, 265 

 Eupagurus, spp., armour, 103-4 



invader, 11 1 



commensal, 136 



shell selection, 134, 243-4 



Facelina, spawn, 275 



Ficulina, reproduction, 258 



Fissurella, temperature range, 76 

 respiration, 209 

 reproduction, 270 



Flustra, adaptive form, 70 



Foraminifera, shell construction, 

 242-3 



Fucus, spp., economic aspect, 294 

 serratus, description, 305 

 platycarpiis , description, 307 

 vesiculosus, description, 303 



Fulgur, spawn, 272-3 



Galathea, spp., masking, 91 



autotomy and regeneration, 

 123 



locomotion, 154, 167 



respiration, 213 



reproduction, 268 

 Galvina, spp., autotomy, 129 



spawn, 274 



growth, 276 

 Gamasus, resistance to drowning, 65 

 Gammarus, spp., habitat, 49, 56, 61 



adaptive form, 70 



locomotion, 155 

 Gasteropoda, power of adhesion, 67 



protective resemblance, 97-8 



spines, function of, 113 



locomotion, 159, 162-3 



feeding, 194 



eyes, 228 



spawn, 246 



reproduction, 271, sqq. 



Gasterosteus, spp., nest-building, 



2SS-6 

 Gasterostomum, spp., parasitic, 147 

 Gelasimus pugilator , locomotion, 166 



respiration, 208 



development, 270 

 Gelidimn, spp., economic aspect, 293 

 Geocarcinus, spp., breeding, 270 



respiration, 208 

 Geophilus, spp., 311 

 Geryonia, reproduction, 261 

 Gibbula cineraria, parasitised, 146 

 Gibbula, spp., habitat, 49, 50 

 Gigartina mamillosa, economic as- 

 pect, 292 

 Gobitis, spp., habitat, 51 



suckers of, 69 



temperature range, 79 



locomotion, 159 



feeding, 197 



spawning, 279 

 Gonothyreea, reproduction, 261 

 Grantia compressa, reproduction, 260 

 Grapsus, spp., autotomy, 123 



locomotion, 155 



respiration, 208 

 Gymnophallus margaritce, parasitic, 

 147 



Halichondria panicea, habitat, 49 

 adaptive form, 70 

 reproduction, 258, 260 



Halidrys siliquosa, description, 303 



Haliotis, salinity conditions, 81 

 respiration, 209 

 sense organs, 228 

 reproduction, 270 

 economic aspect, 287 



Halobates, spp., adaptation, 309 



Halolcelaps ; see Gamasus. 



Halosydna gelatinosa, autotomy, 129 



Hapalocarcinus, spp., commensal, 

 136 



Harpacticus, salinity conditions, 82-3 

 reproduction, 267 



Helcion pellucidum, habitat, 49 



Hermcea, spp., protective resem- 

 blance, 97 



Heteronereis, 264 



Heterotrichus rostrata, nest-building, 



257 

 Hexactinellida, reproduction, 258 

 Hildenbrandtia, epizoic, 134 

 Himanthalia and Convoluta, 150 



description, 305 

 Hippolyte varians, reaction to light, 



234, 240 



