INDEX 267 
Cutleriacee, 56 
Cyanophycee, 249 
Cymathere, 76, 79, 85 
Cymopolia, 151, 152, 155 
Cystoclonium (Plate VI.), 221 
Cystophora, 55 
Cystophyllum, 55 
Cystoseira (Plate I.), 54, 55 
Dactylopora, 154 
Dactyloporella, 154 
Dasya (Fig. 77), 235 
Dasycladacew, 145 
Dasycladew, 151 
Dasycladus, 151, 152, 154, 155 
Decaisnella, 154 
Decalcifying, 30 
Delesseria (Plate VII), 230, 232 
Delesseriew, 230 
Delisea, 233 
Depth, range in, 5 
Derbesia, 131, 132, 133, 134, 136, 
Dermocarpa (Fig. 87), 260, 261 
Desmarestia (Fig. 24), 99, 101 
Desmarestiacew, 99 
Desmotrichum, 108 
Diatomacec, 188 
Diatomine, 189 
Dictyoneuron, 77, 78, 79, 85 
Dictyopteris, 60, 61, 63 
Dictyosiphon, 98, 99 
Dictyosiphonacew, 98 
Dictyospheria (Fig. 47), 159, 163, 
165 
Dictyota (Fig. 9), 60, 61, 62, 63 
Dictyotacee, 60 
Dilsea, 239 
Diploderma, 248 
Discosporangium, 115 
Distribution, 13 
Dredge, Reinke’s (Fig. 1) 
Dredging, 28 
Drying, 29 
Dudresnaya (Fig. 81), 239, 240 
Dumontia (Plate VIII.), 239 
Dumontiew, 238 
Durvillea, 48, 55 
Ecklonia, 78, 79, 85 
Economic value of seaweeds, 31 
Ectocarpacee, 116 
Ectocarpus (Fig. 29), 65, 68, 69, 
104, 116, 117, 118, 119 ‘ 
Lgregia, 55, 78, 79, 85 
Eisenia, 78, 79, 85 
Hlachista, 94, 95 
Llachistacee, 93 
Enceliacee, 104 
Encyothalia, 86, 87 
Linteromorpha (Plate IV.), 174, 
175, 176 
Entoderma, 170, 171, 172, 173 
Epicladia, 170, 171, 173 
Hpithemia, 195 
Erythroclonium, 221 
Hrythrotrichia, 247, 248 
LEspera, 140 
Luchewma (Fig. 68), 221 
Huthora, 221 
Fasergriibchen, 53 
Floridew, 200 
Fossil Algze, 20 
Fouling of ships’ bottoms, 11 
I’radelia, 137 
Frustule, 189 
Fucacee, 40 
Fucodium, 47 
Fucus (Fig. 2), 45, 48, 54, 55, 68, 
73 : 
Furcellaria, 239 
Galaxaura, 210, 211, 213 
Gigartina (Plate VI.), 216, 219 
Gigartinacer, 216 
Gigartinee, 216 
Gelidiew, 214 
Gelidium (Fig. 65), 215 
Giraudia, 95, 102, 103 
Girdle, 189 
Gleocapsa, 255, 258, 261 
Gloiosiphonia (Figs. 79 and 80), 
239 
Gloiosiphoniew, 238 
Gobia, 98, 99 
