%V\U SPONGIA). 
[1905] 
24 Spong. 
Stylotella Lend., see under Hymeniacidon. 
Stylotellopsis n. g., for S. amabilis , n. sp., Punta Arenas, 19 m. : Thiele 
(36) pp. 456, 457, fig, 72, a-d. 
Tedanict Gray, defined : Baer (1) p. 17 ; T. discussed : Thiele (36) p. 430. — 
T. digitata 0. S., var. sansibarensis, n.var., pp. 17, 18, pi. i, figg. 1 1, pi. iv, 
figg. 26-31, pi. v, fig. 1, 2 ; var. fragilis , n. var., pp. 18, 19, pi. ii, fig. 3 : 
var. conica , n. var., p. 19, pi. ii, fig. 4: Baer (1). — T '. excavo.ta , n. sp., 
Calbuco, pp. 431, 432, fig. 51, a-c ; T. fuegiensis , n. sp., Cape 
Espiritu Santo, pp. 433, 434, fig. 53, a-d ; T. mucosa , n. sp., Calbuco, 
pp. 430, 431, fig. 50, a-c ; T. pectinicola , n. sp., Calbuco, p. 432, 
fig. 52, a-d : Thiele (36). 
Thrinacophora R. & D., defined, p. 186 ; T. agariciformis , n. sp., Ceylon 
seas, pp. 186, 187, pi. xii, fig. 6; T. durissima, n. sp., Ceylon seas, 
pp. 187, 188, pi. xii, fig. 5 : Dendy (8). 
Toxochalina Ridley, defined and characterized, p. 139; T. robusta R., 
and var. ridleyi t n. var., described, pp. 139-141, pi. ix, fig. 2 : Dendy (8). 
Trachyopsis , n. g., Renierince , for T. halichondroides , n. sp., W. coast of 
Ceylon, deep water: Dendy (8) p. 147, pi. x, fig. 10. 
(iii) K ERA T OS A. 
Classification of the Keratosa discussed : Topsent (37) pp. clxxi-clxxiii. 
Keratosa distinguished into “ true Ceratosa” or Euceratosa and Pseudo- 
ceratosa, p. 201 : Euceratosa defined, their affinities discussed, pp. 200- 
203: Dendy (8). 
Aplysilla lendenfeldi , n. nom., for Simplicella glaciatis Lend., non 
Merojkowsky, pp. 489, 490, fig. 113; A. sul/urea F. E. S., described, 
pp. 488, 489, figg. 112, 114 : Thiele (36). 
Aplysillidoe , defined : Dendy (8) p. 203 ; to be merged in Darwinellidtv : 
Topsent (37) p. clxxiii. 
Aplysina Nardo, defined, p. 223 ; A. henhnani, n. sp., Ceylon seas, pp. 225, 
226, pi. xvi, fig. 4; A. purpurea Carter, described, pp. 224, 225: 
Dendy (8). 
Cacospongia O. S., defined, p. 210; C. scalaris O. S., described, pp. 210, 
211: Dendy (8).— C. similis n. sp., Juan Fernandez: Thiele (36) 
pp. 481, 482, fig. 108. 
Cerelasma Haeckel, referred to the Psamminidcc (Protozoa); Schulze (31) 
p. 5. 
Darwmclla Muller, defined and discussed : Dendy (8) p. 203; defined, 
p. cxc; table of species, p. clxxxiii: Topsent (37). — D. australiensis 
Carter, described, p, clxxvi; D. corueostellata (Carter), described, 
pp. clxxv, clxxvi; D. dabnatica , n. sp., Adriatic, pp. clxxviii, clxxix; 
D. duplex , n. sp., Azores, 200 metres, p. clxxix; D. gardincri , n. sp., 
Maldives, 40 metres, pp. clxxix, clxxx; I). intermedia Topsent, 
described, pp. clxxvii, clxxviii, toxt-lig. 11; 2). mulleri (Sohultze), for 
D. aurea Muller, described, p. clxxv : Topsent (37). — D. simplex Top- 
sent, described: Dendy (8) p. 204, pi. xv, figg. 1, 2 ; described : Topsent 
(37) pp. clxxvi, clxxvii. — D. wart'eni , n. sp., Natal: Topsent (37) 
pp. clxxx-clxxxiv. 
Darmnellidce , defined, for Hexadella Tops., Aplysilla F. E. S., Darwinella 
Mull., Dendrilla Lend, and Megalopastas Dendy : Topsent (37) 
pp. clxxiii and clxxxix. 
Dendrilla Lend., defined, referred to family Darwinellidai : Topsent (37) 
pp. clxxiv and cxc. 
Dendroceratida, for Hexaceratina Lend., defined, to include three families, 
Dai'winellidce , Pleraplysillidce t n. fam., and lanthellidce: the Hali- 
sarcidce to be removed from the order: Topsent (37) pp. clxxiii and 
clxxxix. 
