ibo — 



Halichondria glabra Bowerbank iS, 



— Hyndmani Bowerbank 



— irregularis Bowerbank 



— leuconoides nov. sp. (pi. v, fig. 4) 



— nigricans Bowerbank 



— pachastrelloides nov. sp. (pi. ix, 



fig. 3) 19, 66, 67, 92, 107 



— Pattersoni Bowerbank 98, 



— scandens Bowerbank 



— solida Ridley et Dendy 66, 6j, 



— solida Bowerbank 



Halichondri.« Schmidt 



Halichondrina Vosmaer 7, 56, 5j, 60, 61, 



66, 6y, 80, 91, 100, 101, 



Halicnemia Bowerbank 5g, 



— patera Bowerbank 



Halisarca Dujardin 



Hamacantha Gray 62, 64, 86, 88, 



— esperioides Ridley et Dendy sp.. 



— faleula Bowerbank sp 



— Johnsoni (Bowerbank) Gray (pi. 1, 



fig. 4, pi. n, fig. 9 et pi. vu. 



fig. 4, 5 et i3) 5, 17, 20, 39, 



85, 86, 8;, 



— — var. complanala nov. var. 



Pages 

 66 



98 

 109 



19 

 67 

 98 



125 



99 

 98 



125 



67 



97 



63 



i36 



65 



57 

 8 



1 36 



88 

 88 



62 

 88 

 86 



— — var. inelegans nov var. 86 



87 



— papillata Vosmaer 88 



— tenda Schmidt sp 88 



— tibicen Schmidt sp 88 



Hamacanthin^e Gray 64, 84, 85, 86, 88, 1 36 



Ha.migera Gray io3 



— hamigera (Schmidt) Gray io3 



Hastatus Vosmaer 63, 97 



Hertwigia Schmidt 1 3 



— falcifera Schmidt (pi. v, fig. 10) 6, i3 



19, 25, 26, 27 



Hertwigiid.b nov. fam 1 3, 35 



HETEROCŒLA Poléjaeff. 22 



Heterorrhaphid.« Ridley et Dendy.. 61, 62, 64 



73, 7 6, 80, 85, 124, 125, i36 



Heterosclera Sollas 57 



Hexactinella Carter 34 



— Grimaldii nov. sp. (pi. 11, fig. 1 



et 2 et pi. vu, fig. 1) 8, i3, 19 



34 



— tubulosa Schulje 3 1 



HEXACTINELLIDA Zittel. . G, 7, i3, 17, iS 



19, 24 



Pages 



Hexasterophora Schulze 24 



Histoderma Carter 64 



Homasterina Sollas 44 



HOMOCŒLA Poléjaeff 21 



Homorrhaphid.e Ridley et Dendy... 57, 61, 62 



63, 66, 72, 76, i36 



Homosclera Sollas 57 



Hoplophora Sollas 49 



Hyalonema Gray 27, 28 



— lusitanicum Barbota du Bocage... 28 



— Thomsoni Marshall (pi. m, fig. 12 



et pi. vu, fig. 8) i3, 19, 28, 29 



H yalonematid.b Gray 28 



Hymedesmia Bowerbank 58, 60, 65, 109 



— bistellata Schmidt sp 59 



— inflata Bowerbank 1 10 



— Johnsoni Bowerbank 83, 86 



— radiata Bowerbank 109 



— spinatostellifera Carter.. 5j, 59, 126 



— stellata Bowerbank 57, 59 



Hymedesmia stellifera Bowerbank, 57 



— stellivarians Carter 20, 57, 127 



— tenuicula Bowerbank 1 3 1 



Hymeniacidon Bowerbank 76, i38 



— armatura Bowerbank 117 



— caruncula Bowerbank 20, 119 



— faleula Bowerbank 88 



— firmus Bowerbank 6y 



— solidus Bowerbank 6-y 



— sp7 17, 120 



Hymeraphia Bowerbank 5, 62, 63, 64, 113, 114 



n5, 116 

 geniculata nov. sp. (pi. 1, fig. i3 



et pi. xi, fig. 4 et 5) 20, 115, 116 



i35 



— minima nov. sp. ipl. xi, fig. 2 



et 3) 20, 114 



— tuberosocapitata nov. sp. (pi. xi, 



fig. 6) 20, 92,113 



vermiculata Bowerbank ; var. erecta 



Carter 121 



— viridis Topsent 16, 20, 92, 114 



11 5, 117, 1 3 5 



Iophon Gray 61, 63, 97 



— nigricans (Bowerbank) Gray 98 



— Pattersoni (Bowerbank) Ridley et Dendy 98 

 Isodictya Bowerbank 61, 63, i35 



— implicita Bowerbank 109 



— uniformis Bowerbank 1 36 



Isops apiarium (Schmidt) Sollas 60 



