— IÔ2 



Petrosia dura (Schmidt) Vosmaer . . 

 — friabilis nov. sp. (pi. vi 

 l 7- 



Pages 

 68 



84 



fig. 8 et 

 pi. ix, fig. 4).. 17, 18, 19, 69, 



— testitudinaria Lamarck sp 70 



— variabilis Ridley i5, 19, 68, 69 



Phakellia Bowerbank 72, 120, 121 



— Bowerbanki Vosmaer 120 



— egregia Ridley sp 121 



— flabellata Ridley et Dendy 120 



— Hirondellei Topsent 120, 121 



— ventilabriim (Johnston) Bowerbank.. 17 



ISO 



— — var. connexiva Ridley et 

 Dendy 17, ISO 



Phelloderma Ridley et Dendy 60, 64 



Pheronema Leidy 27, 29, 3o 



— Carpenteri Wyville-Thomson. . . . . . 29 



— Grayi Kent (pi. v, fig. 8 et pi. vu, 



fig. 9) i3, 18, 19, S9, 3o 



— Parfaiti Filhol 29 



— sp? (pi. v, fig. 16) 30 



Phlœodictyin^e Carter.... 60, 64, 73, 76 1 36 

 Placina Schulze 53 



— monolopha Scindée 8 



Placinid.e Schulze 53 



Plocamia Schmidt 63, 64, 118, 119 



— coriacea Bowerbank ; var. elegans 



Ridley et Dendy (pi. vi, fig. 11) .. 20 



117, 118 



— microcionides (Carter) Schmidt 18, 117 

 Plumohalichondria Carter 63, 64, 111, 112, 114 



— mammillata Carter 1 1 1 



— microcionides Carter m 



— plumosa (Montagu) Carter 1 1 1 

 Pœcillastra Sollas 38 



— crassiuscula Sollas 14, 19, 37, 38 



— scabra Schmidt 38 



Polymastia Bowerbank 27, 57, 59, 65, 78, i32 



— corticata Ridley et Dendy (pi. v, 



fig. i5) 16, 20, 13S 



— hemisphaerica (Sars) Vosmaer 18, 132 



i33 



— mammillaris (Johnston) Bowerbank 17 



18, 131, i33 



— robasta Boverbank 18, 131, 1 33 



— spinula Bowerbank 17, 131 



Polymastin*: nov. s.-fam 5g, 60, 65, 131 



Poterion Schlegel 59, 65 



Proteleia Ridley et Dendy 61 



— Sollasi Ridley et Dendy 1 32 



Pseudotetraxonina Vosmaer 7 



Pages 

 Pytlieas nov. gen 62, 63, 64, 110, 117 



— ater nov. sp. (pi. 1, fig. 1 et pi. xi, 



fig. 1) 16, 20, 110, 111 



— inflatus Bowerbank sp 1 10 



Quasillina Norman 57, 5q, 65, 129 



— brevis (Bowerbank) Norman.. 20, 129 



13S 



Racodiscula Zittel 



— clava Schmidt sp. (pi. 1, fig. 5, 6 



et pi. vm, fig. 3) i5, 19, 49, 



— nucerium (Schmidt) Zittel 



— polydiscus (Schmidt) Sollas 



Raphiodesma Bowerbank 80, 



— aculeatum Topsent 



— lingua Bowerbank 



— simplicissimum Bowerbank 



Raspailia Nardo 27, 



— (Syringella) australiensis Ridley 



— (Syringella) falcifera nov. sp. (pi. vi, 



fig. 6 et pi. xi, fig. 19).. i5, 20, 



— (Syringella) lvumilis nov. sp. (pi. v, 



fig. 1 1 et pi. xi, fig. 20) 20, 



— ramosa (Montagu) Schmidt 



— rigida Montagu sp 



— ? rigida Ridley et Dendy sp 



— stelligera Schmidt 



— stnposa Montagu sp 17, 



— syringella Schmidt 



Reniera Nardo... 61, 62, 71, 72, 73, 77 



— angulata Topsent 



— elegans (Bowerbank) Schmidt.... 16, 



— Filholi nov. sp. (pi. iv, fig. 7 et 



pi. ix, fig. 6) 18, 



— fistulosa Bowerbank sp 



— indistincta (Bowerbank) Schmidt 16, 



'9, 



— membranacea Hanscn 



— rosea Bowerbank sp 



— sp? (pi. 1, fig. 14) iS, 



— sp? 18, 



— sp ? 20, 



— Sp? 20, 



— tuf a Ridley et Dendy 17, 



Renierin/E Ridley et Dendy . . . 62, 63, 66, 



72, 

 , 5, 56, 62, 

 6 4) 115, 



KltAllclerenila nov. gen. 



5o 



5o 

 5i 

 5o 

 5o 



i35 

 84 

 88 



i36 



123 

 123 



1S4 



1S3 



91 



123 

 123 

 123 



1S3 



123 



i36 



77 



" 20 



70 



70 

 7» 

 l 7 



69 



104 

 61 ' 



71 



71 



71 



7S 



70 

 70 



i36 

 63 



116 



