312 University of California Publications. [Zoology 



PAGE 



Lumbricus agrieola ; 270, 273, 274, 2M 



sense organs of 273, '_'74 



Mery, Ruth 211 



.Metabolic processes in Tornaria 187 



Metamorphic period of Tornaria 182 



Method of counting sense organs in Mieroscolex elegans 271 



of preparing materia] in Mieroscolex elegans 270 



of staining 116, 161, 251, 272 



Metridium 211, 214, 216 



Mieroscolex elegans, sense organs in 274, 275, 277, 281 



Millepora nmrrayi 63 



Monostaechas quadridens 74 



Movements, active, of Tornaria 188 



Mucous glands in Plethodon 161 



nuclei and cells of 2411, 247 



physiological significance of 163, 164, 165 



replacing poison glands 245 



secretion, reaction to stains 241, 246 



Nerves, endings on gland muscles 252 



of glands 27,2. 253 



perinuclear endings of 253 



plexus of 252 



Xon-sexual reproduction in Sagartia davisi 211 



Notochord in Enteropneusta 199 



Obelia 56, 62, 63 



commissuralis 4, 56 



dichotoma 57 



geniculata 58 



surcularis 57 



Orientation of branch 117 



of ( lorymorpha palma 39 



of Sertularia argentia 68 



of S. furcata 66 



Ova in Crisia, absorption of 131 



development complete 125, 126, 132 



development partial 125 



early cleavage stages 134 



failure to develop 125 



parthenogenetic development of 130 



position of 122 



precocious formation of 123 



Ovicell, homology of 133 



protection and nourishment afforded by 144 



Ovogenesis in Crisia 121, 123, 124 



( hum in Crisia, relation to number of larvae 143 



Parthenogenesis 130 



Parypha microeephala 43 



Pennaria 42 



