I70 



INDEX TO THE PORIFERA 



autoskeleton, 37 



axes (geometric) of spicules, 



37 

 axial cross, 116, 118 

 Axindla, 81, 153 

 Axiaellidae, 138, 140, 145, 



151 



— diagnosis aud genera, 

 152, 153 



Axinellid type of skeletou, 



140 

 axis (orgauic) of spicules, 



40, 100 

 Axonidenna, 152 

 Axosubcrites, 151 

 Azorica, 149 

 Azoricidae, 148, 150 



— diagnosis and genera, 

 149 



Bajulus, 154 

 Balfour, 158 

 Barrois, 76 (footnote), 80, 



165 

 basal formative cell, 107 



— ray, 101 

 basal ia, 118 

 Bathydorus, 122 

 Lathyxiphns, 124 

 Batzella, 152 

 Becksia, 124 



Bidder, 55, 57, 87, 102, 109 

 Biemma, 152 

 bionomics, 88 

 Blastinia, 111 

 blastogenesis, 73, 80 

 blastomeres, 65, 68, 80, 83 

 blastula, 68, 78 

 Bolidium, 150 

 Bolosjjoiif/ia, 149 

 boring sponges, 88 

 Bowerbauk, 165 

 Hrarh inxponfjia, 1 23 

 Brachiospongidae, 123 

 Bruitfuss, lt)5 

 Buharinae, diagnosis and 



genera, 152 

 Biihnris, 152 

 budding, 17, 63, 64, 90 

 Butscbli, 158 



Cacochalina, 151 



Cacospongia, 153 



Calathiscits, 124 



Calcarea, 1, 3, 24-27, 40, 

 41, 43, 46, 47, 50, 51, 

 53,91,92-111,157,161, 

 162, 164. 166 



calcareous spicules, 40, 100 



— origin of, 161 

 Caloaronea, 109 



Calcinea, 109 

 Cullipelta, 149 

 Callodktyon, 124 

 Cailodictyonidae, 124 

 Callopeijma, 148 

 Calthropellu, 147 

 calthrops, 132, 135 

 Culycosaccus, 122 

 CcUycosoma, 122 

 Calymmatina, 149 

 Camerospongia, 124 

 Caminus, 148 

 canal system, 85 



— defined, 31 



— general account of, 31- 

 37 



— of Calcarea, 92 



— of Demospongiae, 125- 

 130 



— of Heterocoela, 96-100 



— of Hexactinellida, 111- 

 116 



— of Homocoela, 92-96 

 candelabrum, 134 

 Carnosa, 1, 157, 162 



— diagnosis and classifica- 

 tion, 146, 147 



Carpospongia, 150 

 Carter, 49, 56, 85, 86, 89, 



158, 164 

 Carteriospimgia, 153 

 Curkrius, 152 

 L'aryovianon, 150 

 Caryuspongia, 150 

 Casearia, 124 

 Caster ell a, 149 

 Caulocalyx, 122 

 Caiilnpluicus, 7, 36, 116, 



122 

 cellules spheruleuses, 49, 



59, 144 

 Celyphia, 111 

 cement (siliceous) uniting 



spicules, 41 

 central cells, 76 

 centrotriaene, 134 

 Cephalitcs, 125 

 Ceraochcdina, 151 

 Cerbaris, 152 

 Cerelasma, 142 

 C/ialina, 151 

 Chalininac, 156 



— diagnosis and genera, 

 151 



Chalinine type of skeleton. 



140 

 Chalinula, 80, 151 

 chamber layer. 112 

 cliamljers. tlngellated, 32 

 CharaceUu, 147 

 CluuiHoplectclltt, 122 



chela, 138 

 Chenendepora, 150 

 t'hiasliiclonella, 149 

 (Jhiastiiclonellidae, 1 49 

 chloropliyll, 25 

 choanocytes, 27, 53, 62, 



121 

 Choanoflagellata, 27, 53, 



62, 89, 159, 160 

 choanosome, 128 

 chondrenchyma, 52 

 Oumdrilla, 147 

 Chondfocladia, 152 

 Chondropsis, 152 

 Chondrosia, 145, 147 

 f'hondro.sidae, 145, 147 

 chone, 36, 129 

 Chonclasma, 124 

 Chonelhu 150 

 Choristida, 135, 157, 163 



— diagnosis and classifica- 

 tion. 147, 148 



Chrotella, 147 

 Cinachyra, 147 

 Cinclidermu, 124 

 Ciocalypta, 153 

 circulation, 86 

 Claducroce, 152 

 Cladopellidae, diagnosis 



and genera, 149 

 cladome, 132 

 C'ladorhiz'i, 152 

 cladus, 132 

 Clathria, 152 

 Clathrina, 20, 27, 56, 58, 



69, 73, 75, 82, 90, 110. 



160. 161 



— budding, 64 



— colours of, 25 

 Clathriniddc, 7, 48. 53, 93- 



95. 100. 103, 104, 107- 

 110. 119. 145 



— diagnosis and genera, 

 110 



Cluthriodendron, 152 

 Clatlirwpxamma, 152 

 Claviscopulia, 123 

 clavula, 117 

 Clavularia, diagnosis and 



cla-^siticatiiin, 123 

 Clavulina, 42, 78, 140. 146 



— diagnosis aud classifica- 

 tion, 151 



ClhnacosjHingia, 153 

 Cliona, 67, 78, 80, 151 

 Clionidae, 88 



— diagnosis and genera, 

 151 



cloacal cavity, 35 



— skeleton, 136 

 clone, 134 



