INDEX 



Page 



bbreviata, Characella - 284 



Acanthella - 445 



acanthifera, Raspailia (Axinella) 445 



Acanthoxifer . - 331, 333,386 



Aciculida - - 326 



Aciculites 463,467 



ciliata . 463 



higginsia 464 



orientalis 463, 464 



aculeata, Axinyssa 445 



aculeatus, Gellius 354 



acutum, Plakidium ... 469 



Adreus .. 354 



adriatica, Euspongia officinalis 485 



Aegagropila 425 



aegagropila, Mycale (Halichondria, Es- 



perella)... - ---- 426,427 



affinis, Pachychalina diffusa 413 



agglutinans, Ecionemia 297 



alba-bidens, Tetilla (Cinachyra) 363 



alba-obtusa, Tetilla (Cinachyra).... 363 



alba-tridens, Tetilla (C inachyra) 363 



Alcyonium aurantium 334 



cranium - 334 



lyncurium 334 



testudinarium 334 



Alectona - -- 353 



Alemo seychellensis 335 



Algol.. - 286 



aliena, Phyllospongia 481,484 



amboinensis, Paratetilla 383 



Tetilla (Cinachyra) 382 



amphiacantha, Tetilla (Chrotella) 358 



Amphiastrella - 418 



Amphilectus 431 



Amphitethya -- 355,384,385 



aruensis. 383,385 



merguiensis 383 



mierosigma 384 



(Tetilla, Tethya) stipitata 384 



Amphius - --- 327 



Anacanthaea 331,335,386 



Ancorella - 278 



Ancorina 286,297,329 



cerebrum 286,297 



wageneri 286 



angulatus, Gellius (Halichondria).- 390 



Anisoxya 327 



annulata, Theonella 447 



anomala, Aplysina flagelliformis 490 



Tetilla (Cinachyra) 363 



Anomocladidae 470 



Anoplia.. 447, 468 



Anthastra - 285,294 



aperta, Tetilla crustata 363, 371 



Aplysilla 472,489,490 



Aplysillidae 472,473,489 



Page 

 Aplysina 489,490 



flagelliformis anomala 490 



purpurea- 490,491 



A ply sininae 479, 487 



appendiculatum, Coelosphaera (Histoder- 



ma).... - --- 434 



arabica, Psammaplysilla 489,490,491 



arcifera, Paratetilla. 380 



arctica, Semisuberites 421 



armata, Tethya - 378 



aruensis, Amphitethya (Paratetilla) 383 



Petrosia truncata 403 



Asteropus 285,326,327,328 



haeckeli. 327 



simplex 327 



simplex pyriformis... 327 



Asterostreptidae 277 



Astraxinellidae - 354,444 



Astrella 285,294 



Astromonaxonellida 276,354 



Astro peplus 327 



Astrophora 273, 276. 277, 326. 327, 343, 354 



Astrotetraxonida .- 276 



Atergia - --- 347 



Aulena 473 



Aulenidae 473 



Auletta 445 



auris, Macandrewia — - 459 



Aurora - 285,294,303,327,334 



cribriporosa 285 



australis, Mycale macilenta 426 



avara, Spongelia 477 



Axinella - 445 



acanthifera.. 445 



Axinellidae 276, 327, 333, 354, 386, 444, 445 



Axinyssa -- - 445 



aculeata.. - --- 445 



Axos - - 342 



Axosuberites _ -.. - 351 



Azorica 465 



pfeiflerae 465 



azorica, Craniellopsis 385 



Azorieidae 465 



bacca, Paratetilla -- 363 



Tethya 384 



Tetilla (Stelletta) 382 



baeri, Reniera implexa 398 



Bajulus - 275 



barbate, Cinachyra 374 



Barbozia — 342 



basta, Ianthella (Spongia) 474, 475 



Biemma 386,422,423,424 



Biemna - 423,424 



truncata 424 



B iemninae 423 



bifacialis, Sphinctrella 280 



bowerbanki, Hamacantha. 438 



523 



