172 



IXDEX TO THE PORIFERA 



Eotyonine type of skeleton, 



140 

 Eclyonopsis, 152 

 Eilhardia, 9, 110 

 Elasmocoeliti, 111 

 Elasmosloma, 111 

 elastic fibrils, 49 

 embryology, 67 

 Enautiodi'rmn. 159 

 Eiiiintiozoa, l.")9 

 eutlochone, 129 

 eiulogastnil networks, 4?, 



96 

 endodenn, 62, 73, 81, ir)8. 



159 

 Ei^pongia, l.'JO 

 Epallax, 150 

 Ephj/datiii , 1 .'»2 

 Epistomello, 150 

 epithelium. 27 

 ErijUna, tliagnosis and 



genera, 148 

 Ertjirn, 148 

 Esperella, 88, 152 

 Esperellinae, diagnosis and 



genera, 152 

 Esperid, 152 

 E.iperii>p.ii.i, 23, 152 

 Etheridgia, 124 

 euaster,"l34, 135, 138, 155 

 Euasterina, diagnosis and 



genera, 148 

 Eiiastrosa, 147 

 Euhrochiix, 124 

 Eiitiea, 111 

 Eiuiicti/inii, 122' 

 Eiimanlid, 1511 

 EuplecMia, 6. 37, 41, 64, 



116, 120. 122 

 Eiiplectelliiiae, diagnosis 



and genera, 121, 122 

 Eiiplfctelli»(ie, diagnosis 



and genera, 122 

 Eiip/i>ca/iii, 110 

 Eiinif, 124 

 Euretidae, diagnosis and 



genera, 124 

 Euniph;jma. 7, 23, 115, 122 

 enrvpylous type of canal 



system. 34 ,"99. 130 

 Ku'siphnui'Uii, 111 

 Kii.yioiu/ia, 20, 153 

 Eiixpotiifd/inae, diagnosis 



and genera, 151 

 Eutiixifhuiinae, 150 

 KuzitU-lin, 111 

 Evans, 42, 53, 83, 138 

 excretion, 87 

 exciirrent canals, 33, 81,99, 



113, 126 

 — duct, 97 



exhalant canals, 33 

 exotlcrm, 62 



Fan-shajR-d sponges, 22 

 y'(«/T,v/. 119, 123 

 Faneidae, diagnosis and 



genera, 123 

 fertilisation of ovum, 61 

 fibres of spongin, 42 

 fibrillae of spongin, 42, 49, 



142 

 Ficulina, 151 

 Fiedler, 58, 60 

 Field inijia, 124 

 filaments, of llircinia, etc., 



142 

 Filiferae, 143 

 first type of canal system, 



31, 32 

 fix.ation of sponges, 2 

 riabellate sponges, 22 

 Hiigella, 87 

 rtagellated cells, 69, 76, 78, 



80, 84 



— cliaml)ers, 32, 90 

 tiagellum, 27, 54, 85, 121 

 tlat epithelium, 27, 42, 81, 



120 

 flesh spicules. 39, 100, 137 

 tloricome, 11" 

 Fol. 143 

 Fincepia, 152 

 formative cells, 107 

 Fusifer, 152 



G.iiiin, 82 



Garstang, 8S 



givstral actinobl.ist, 108 



— cavity, 3, 85. 71, 81 



— layer, 27, 53 



— membrane, 1 1 i 



— ray, 101 



— rtiy, formation of, 108 



— skeleton, 105 

 gastralia, 119 

 Gnstrophaiu-Ua, 149 

 Uellmlcs, 152 

 (wiiliodituK', diivgnosis and 



genera, 152 

 Oelliiis, 151 

 gemmule, 65 

 f,',-odia, 148 

 Ge(Mh'da<% di.ognosis and 



genera, 148 

 OriHiiiia, diagnosis and 



genera, 148 



(nixlit.X, 148 



glandular cells, 138 



— epitlielium, 27, 42, 46 

 (tomphoxteijid, 1 52 

 gonocytcs. 60, 62 



Gotte, 82, 158, 159 

 (Jrantessa, 110 

 UranUa, 9, 47. 110 

 Orantidtie, diagnosis and 



genera, 110 

 Gray, 165 

 (iuettanikt, 124 

 Uuitarra, 152 



Habrodictyum, 122 

 Hadromerina, 1, 146, 163 



— diagnosis and classifica- 

 tion, 150, 151 



Hiieckel, 26 (footnote), 37, 

 51, 62-64, 89, 96, 101, 

 109, 142, 143, 158 



Ualichondria, 56, 88, 151, 

 157 



Halichondrina, 1, 78, 80, 

 140, 146, 163 



— diagnosis and classifica- 

 tion, 151-153 



llidicnemia, 153 

 Ilalicomete.% 1 5 1 

 llaUsarm, 44, 79, 82, 145, 



154 

 Halisarcidae, 146, 153, 164 



— diagnosis and genera, 

 154 



Ilamacantha, 152 

 J/<tiiii'jcra, 152 

 Ilaplistion, 153 

 Haploscleridae, 144 



— diagnosis and genera, 

 151 



Heider, 158 

 Ilemiastetrlla, 150 

 I/c>iwi;jiii, 122 

 llertviijidae, ili.ognosis and 



genera, 122 

 lu'teractinal spicules, 155 

 Heteractinellidii. 154, 155, 



157. 162 



— di.agnosis and classifica- 

 tion, 156 



Heterocoela, 1, 8, 75, 109, 

 164 



— canal system, 96-100 



— diagnosis and classifica- 

 tion, 110 



— skeleton of, 105 

 heterogeneous spongin 



fibres, 141 

 Heti-n >m eijen ia, 152 

 Jlrtnopi-ifma, 100. 109, 110 

 Hi'lfrtiphi/mid, 149 

 I/tUropio, 110 

 /fctt'ri'pidm; <liaguosis and 



genera, 110 

 Helerorrhaphidae, 151, 152 

 Heterostinkt, 149 



