Die Tetraxonia. 



.1/ 



Mensis 101 ; Tethya cranium 104, 106, 118; 

 Tethya grandis alba 6g; Tethya oscari 104, 

 1 1 S, 120; Tethya porosa 98 : Tethyopsilla 

 121, 135; Tethyopsis radiata 297; Tetilla 

 68, 69, 83; Tetilla bacca 126; Tetilla coro- 

 nida 122; Tetilla grandis 69; Tetilla grandis 

 grandis 69, 74; Tetillidae 67, 68; Tetracti- 

 nellida 66: Tetraxonia 66: Tlienea 1 79 ; 

 Theonellidae 343. 



lendenfeldi, Pilochrota 277; Stelletta 277; 



leptoderma, Tethya 87, 95. 



levior Theonella 344, Taf. XLII, XLIII. 



levis, Thenea 215, 215, 216, 221, Taf. XX. 



Lieberkühn, Sphaere 109, III. 



Lindgren, Erylus decumbens 31 1; Stelletta 

 clavosa 287. 



Lithistida 343. 



lobularis, Oscarella 342, 343. 



longipilis, Tethya 95. 



loricata, Caminella 160. 



Macandrewia 357 ; auris 358, Taf. XLI, XLII. 

 malaccensis, Cinachyra 156. 

 malindiae, Thenea 17g, Taf. XX. 

 mamilliformis, Stelletta 2S6. 

 mammillaris, Erylns 308; Plakinastrella 337, 



338, Taf. XL. 

 Marenzeller, Bläschenzellen 266. 

 Marshall, Agilardiella radiata 297, 299, 301 ; 



Tethyopsis radiata 297, 298, 299, 300, 301. 

 maxima, Stelletta 269. 

 Megasclerophora 336. 

 megaspina, Stelletta 283, 286, Taf. XXXI; 



Thenea 219, 223, 223, 225, Taf. XXI, XXII 

 megaster, Erylus 308, 311, Taf. XXXIV. 

 megastrella, Thenea 225, 227, Taf. XXIII. 

 merguinensis, Tetilla 126, 132. 

 mesotriaena, Thenea 185, 208, 210. Taf. 



XXI. 

 metaclada, Tethyopsilla 135, Taf. XXXIV. 

 Metaclade 137. 

 Metastrosa 177, 178. 

 Methoden 63 — 65 ; Fraktionierte Sedimentation 



62, 63; Mikrophotographie 65, 66 : Nadel- 

 bezeichnung 65. 

 micraster, Isops 317, Taf. XXXV. 

 microclada, Thenea 219, 221, 221, 225, Taf. 



XXIII. 

 microsigma, Amphitethya 126, 130, 133, Taf. 



XV. 

 microspina, Thenea 180, Taf. XX. 

 Mikrophotographie 65. 

 minima, Clavellomorpha 190. 

 monaena, Pachymatisma 311, Taf. XXXV. 

 Monaene, Ableitung 124. 

 Monaxone Bohrschwämme 67. 

 monilifera, Pachastrella 243. 

 Monodisce 174, 175. 

 Montagu, Spongia pilosa 103, 120. 

 mucronata, Ancorina 261. 

 mucronatus, Stryphus 261. 

 Müller, Alcyonium cranium 103, 104, 120: 



Tethya cranium 103. 



mülleri, Craniella 104, 120. 



multiformis, Thenea 217, 219, 223, 225, Taf. 

 XXIII. 



multistella, Sanidastrella 258, 259, Taf. XXV. 



muricata, Thenea 191, 192, 197,202. 206 — 208. 



murrayi, Ecionemia 257. 



Myriaster clavosa 287 ; quadrata 287 : toxo- 

 donta 287. 



Myriastra clavosa 287 — 28g; clavosa var. qua- 

 drata 287; toxodonta 287, 288, 28g. 



Nadelausstoßung, Fangophilina hirsuta 162, 

 163. 



Xadelbau, Tethya coactifera 81. 



Xadelbezeichnungen 65. 



nadelbildende Zellen, Thenea valdiviae 196. 



Nadelbündelkrümmung 106, 129. 



Nadelgröße 1 14, 1 1 7 ; Korrelation zur Strahlen- 

 zahl 64. 



Nadelpräparate 62, 63. 



Nadelwachstum, Tethya cranium 113 — II 6, 

 117. 



Neopeltidae 343. 



nereis, Stelletta 276, 277, 278, Taf. XXIX. 



Nethea 22g, 230. 



nicobarensis, Thenea 181, 184, Taf. XX. 



nigrum, Ecionemia 2^7. 



nobilis, Erylus 311. 



nodstrella, Geodia baretti var. 332. 



nodosa, Disyringa 291, 295, 296, Taf. XXV, 

 XXVI. 



Norman, Nadelgröße 114: Tethya cranium 

 114, 119; Tethya cranium var. abyssorum 

 104; Tethya cranium var. typica 104, 120, 

 121. 



normani, Stelletta 274. 



Normania crassa 237, 238. 



Obtusa, Isops 317. 



obtusum, Ecionemia 255, 257, Taf. XXIV. 



obtusus, Penares 261, #64. 320, 342, Taf. 



XXX, XXXI. 

 orientalis, Stelletta 274. 

 Oscarella 342; lobularis 342, 343 ; sp. (?) 261, 



266, 320—322, 342, Taf. XXX, XXXII, 



XXXIII. 

 Oscarellidae 342. 



oscari, Tethya 95, 104, 117, II 8, 120, 121. 

 ovisternata, Pachastrella 243. 

 oxeata, Placinastrella 33S. 



Pachamphilla 229, 230, 251; alata 251; Taf. 

 XXXIX. 



Pachamphillinae 230, 247. 



Pachastrella 229, 230, 234, 237; abyssi 243: 

 cahculata J43, 243, 246. 247, Taf. XXXIX 

 chunii 238, 243, Taf. XXXVIII ; compressa 

 235, 23S; crassa 238; isorrhopa 243 ; moni- 

 lifera 243; ovisternata 243; stylifera 237, 

 23S ; tenuipilosa 234. Taf. XXXIX, XL. 



Pachastrellidae 177, 178, 229, 229, 230, 301, 

 302. 



Pachastrellina 229. 



*> T " 

 3 X 5 



Pachastrellinae 229. 230, 231. 

 Pachastrissa 301, 302, 338. 

 pachydermala, Isops 328. 

 Pachymatisma 305. 311; monaena 311, Taf. 



XXXV. 

 Papyrula 178. 227, 229, 252, 253: sphaera 



111, 227, Taf. XXXVII, XXXVIII. 

 paulini, Ancorella 131 — 133, 248, Taf. XL, 



XLI. 

 Penares 253, 2^4, 261, 264: obtusus 261, 



264, 320, 342, Taf. XXX, XXXI. 

 pendula, Thenea 210, 215. 216, Taf. XXII. 

 pf'eifferae, Azorica 364. 

 Pilochrota crassispicula 283 ; haeckeli 280, 



281; hornelli 278, 279; lendenfeldi 277. 

 pilosa, Spongia 103, 120. 

 placentula, Hymeniacidon 237, 238. 

 Placinastrella clathrata 338; oxeata 338. 

 Plakina 336. 

 Plakinastrella 336, 336, 338; copiosa 338; 



intermedia 338; mammillaris 337, 338, 



Taf. XL; schulzei 338. 

 Plakidium 300, 360; acutum 360, Taf. XLV. 

 Plakinidae 336. 336. 

 Plakortis 336. 

 Pleromatidae 343. 

 poculifera, Tethya 97 ; Tetilla 97. 

 Poecillastra 177, 178, 229; compressa 237; 



238; crassiuscula 237, 23S. 

 polyaster, Erylus 305, 308, Taf. XXXV. 

 polyura, Tethya 95. 

 Poritella decidua 362, 364. 

 porosa, Tethya 98. 

 Potts, Sphaere 109. 

 Proclade 204. 



progressa, Ancorina 259, 261, Taf. XXV. 

 Proteleia 67, 68, 171; sollasi III, 171, 172, 



Taf. XVI, XVII. 

 Protriaene als Dichotriaenderivate 187. 

 pulchra, Anthastra 276; Stelletta 276. 

 purpurea, Stelletta 278, 279. 

 pyriformis, Thenea 1S4. 



quadrata, Myriaster 287 : Myriastra clavosa 

 var. 287. 



Racodiscula 343. 



radiata, Agilardiella 297, 299, 301 ; Tethy- 

 opsis 297, 301, Taf. XXVII. 



Ridley, Disyringa dissimilis 296: Erylus cylin- 

 drigerus3II ; Monodisce 174, 175; Proteleia 

 171; Proteleia sollasi 1 II, 172 — 174: 

 Stelletta clavosa 287 — 289; Stelletta pur- 

 purea 278, 279; Tethyopsis dissimilis 296. 



Rindenbau, Tethya cranium 105. 



robusta, Geodia 333, Taf. XXXVII. 



Rösch, Chelotropc 245. 



rotunda, Thenea 18g, 20S. Taf. XX. 



Samidae 67. 



Samus anonyma 126, 132, 133. 



Sanidastrella 253, 254, 257; atlantica 259; 



47' 



