INDEX 



529 



Page 



Poeciloscleridae 342,421,437 



Polymastia 347 



Polymastidae 326,347 



Poterion. 353 



procera, Clathria 441 



prolifera, Microciona 486 



Prosuberites 351 



Proteleia 347 



Protosuberites 326 



providentiae, Tetilla (Cinachyra) 363 



Psammaplysilla 487,490,491 



arabica 489,490,491 



kelleri 353,488,491 



Psammaplysillidae 487,489 



Psammastra 296,297 



Psammonemata 472 



Pseudoceratosa 473 



Pseudosuberites 351 



Pseudotetraxonina 276 



pulchrifolia, Theonella 447 



pumilio, Desmacella 423,424 



purpurea, Aplysina 490,491 



putridosum, Phloeodictyon (Rhizochalina).. 419 



-Quasillina 347 



Racodiscula 447 



clava.. 447 



radiata, Carteriospongia 480 



radicifera, Stelletta 294 



Radiellasol 350 



radiella, Tethyopsis 300 



ramifera, Discodermia 447,448,457 



ramosa, Druinella 491 



Macandrewia 459 



Spongelia pallescens fragilis 478 



ramosum, Chalinodendron 416 



Sipbonidium 469 



Raspailia 444,445 



(Axinella) acanthifera 445 



regularis, Mycale eupleetellioides 427 



Reniera 394,397 



implexa 398 



implexa baeri 398 



Renierinae 386,394,437 



Rete philippense 475 



reticulata, Halichondria 396 



Rhabdastrella 285,327,329 



distinctus 285 



Rhabdodragma 286,297 



rhabdophorus, Lophacanthus 472 



Rhacella 276 



Rhaphidistia... 327 



Rhaphidophlus 439, 442 



fllifer spinifera 442 



Rhaphidorus 347 



Rhaphisia 387 



Rhizaxinella 351,352 



nuda 352 



Rhizochalina 419 



carotta 410,418 



oleracea 410,418 



putridosa 419 



Ridleia 347 



Rimella 447 



Rinalda 347 



81709— 25t 18 



Page 



robusta, Macandrewia 459 



Stelletta radicifera 296 



rosacea, Myxilla 429 



rotunda, Druinella 491 



Euspongia officinalis 485 



rubra, Tetilla 382 



sagitta, Tethya 378 



samarensis, Dactylochalina exiguum 417 



Samidae 355 



Samus 355 



Sanidastrella... 286,297 



sansibarica, Tetilla (Tethya) 358 



sarsii, Trichostemma 350 



Sceptrella ...» 342 



Sceptrintus 342 



Schmidtia. 399 



Scleritoderma paccardi 463 



Scleritodermatidae.. 463 



Scleritodermidae.. 463,467 



sclerobasa, Penares 286 



Scolopes 334 



Scutastra 278 



Semisuberites 351,421 



arctica 421 



serica, Tetilla (Tethya) 358 



seto-tubulosa, Clathria (Halichondria) fron- 



difera 439,442 



Sideroderma 418 



navicelligerum 435 



Siderodermella 418,435 



Sidonops 302,309,310,319,320,325 



angulata. 320 



bicolor 320 



microspinosa 320 



nitida 321 



oxyastra.. 320 



siemensi, Myriastra 291,486 



Stelletta 291 



Sigmatella 473 



Sigmatomonaxonellida 276 



Sigmatophora. 273,276,347,355 



Sigmatotetraxonida 276 



Sigmoseeptrella 342 



similis, Petrosia 406 



simillima, Craniella... 378 



simplex, Brachiaster 471 



singaporensis, Coelosphaera (Histoderma) ... 434 



Siphonidiidae 469 



Siphonidium ramosum 469 



Siphonochalina.. 413 



(Tubulodigitus) communis.. 416 



crassifibra... 414,415,416 



fascigera 413 



sluiteri, Cribrochalina _ 421 



sol, Radiella 350 



sollasi, Penares... 286 



Sphaerotylus... 347 



spherastrosa, Geodinella. 285,322 



Sphinctrella 277,280 



bifacialis 280 



spinifera, Rhaphidophlus fllifer 442 



Spongelia 477 



spinosa, Tetilla 358,361 



Spinosella 413 



