KETUTOSA. 
Spong. 25 
Euspongia Bronn, defined: Dendy (8) p. 211 : Dragnewitsch (9) p. 27. — 
E. officinalis Auct., var. ceylonensis, n. var. : Dendy (8) pp. 211-213, 
pi. xiv, fig. 3, pi. xvi, fig. 5. — E. officinalis , var. adriatica F. E. S., and 
var. rotunda Hyatt, described : Dragnewitsch (9), pp. 28-30. — E. 
tenuiramosa , n. sp., Trincomalee: Dendy (8) pp. 213, 214. — E. zimocca 
0. S., described: Dragnewitsch (9) p. 28.— (Vide etiam Spongia.) 
Haddonclla I. Soil., defined, referred to family Ianthellidce : Topsent (37) 
pp. clxxxix, cxc. 
Hexaccratina Lend., discussion of their affinities : Thiele (36) p. 488. 
Hippospongia F. E. S., defined: Dendy (8) p. 214: Dragnewitsch (9) 
p. 30. — II. anomala Polej., described, pp. 215, 216 ; II. clathrata 
(Carter), described, p. 215, pi. xiv, fig. 2 ; H. dura Lend., described, 
p. 216; H. intestinalis (Lam.), described, p. 214: Dendy (8). — H. 
equina and var. mceandriformis in Western Australia, economic notes 
on: Whitelegge (44) p. 119. — H. mollissima Lend., described: 
Dragnewitsch (9) p. 30. 
Hircinia Nardo, defined, p. 219 ; 
H. anomala , n. sp., Gulf of Manaar* 
pi. xiv, fig. 1 ; II. schulzei n. sp., W. coast of Ceylon, pp. 221, 222, 
pi. xvi, fig. 3; H. tuberosa, n. sp., W. coast of Ceylon, p. 221, pi. xvi, 
fig. 2: Dendy (8). — II. variabilis hirsuta 0. S., described: Thieve 
(36) p. 484, fig. 109. 
Ianthella Gray, defined, referred to family Ianthellidce : Topsent (37) 
pp. clxxxix, cxc. 
Ianthellidce , defined, for Ianthella Gray, and Haddonella I. Soli. : Topsent 
(37) pp. clxxiii and Cxc. 
Igernella, n. g., 
e, defined, p. cxc, for Darwinella joyeuxi 
Topsent, described: Topsent (37) pp. clxxxvii-clxxxix, text-fig. 3. 
Korotnewia Polej, to be removed from the Darwinellidce and from the 
Dcndroccratiday perhaps allied to Psammaplysilla Keller: Topsent 
( 37) p. clxxiv. 
Megalopastas n. g., Aplysillidce , for Dendrilla elegans Lend, and Spongio- 
nella nigra Dendy ; diagnosed and discussed, pp. 204, 205 ; M. nigra , 
described, pp. 205, 206, pi. xiv, fig. 7, pi. xv, figg. 5-8 ; M. pulmllus 
n. sp., Gulf of Manaar, pp. 206, 207, pi. xv, fig. 3 : Dendy (8). — 
M. Dendy, defined, referred to family Darwinellidce'. Topsent (37) 
pp. clxxiv and cxc. 
Oligoceras arenosa , n. sp., Juan Fernandez, pp. 479, 480; O. paupera , 
n. sp., Juan Fernandez, p. 481 ; O. sororia , n. sp., Juan Fernandez, 
3 m., pp. 480, 481 : Thiele (36). 
Phyllospongia Ehlers, defined, p. 217 ; P. holdsworthi (Bow.), described, 
pp. 218,219, text-fig. 5; P. papyracea (Esper) var., described, pp. 217, 
218, pi. xiv, fig. 6 : Dendy (8). 
Pleraplysilla , n. g., Pleraplysillidce, defined, p. cxc, for P. minchini , n. sp., 
Courseulles (Calvados), 30 metres: Topsent (37) pp. clxxxiv-clxxxvii, 
text-fig. 2. 
Pleraplysillidce, n. fam., for Igernella , n. g. and Pleraplysilla , n. g., de- 
fined : Topsent (37) pp. cixxiii and cxc. 
Psamminidce , Haeckel, referred to the Protozoa ; Schulze (31) pp. 4, 5. 
Psammopemma , Marshall, defined ; P. crassum (Carter), var. clathrata , 
n. var. : Dendy (8) p. 210. 
Psammophyllum Haeckel, to be merged in the genus Stannophyllum and 
referred to the family Stannomidce (Protozoa) : Schulze (31) p. 5. 
Spongelia Nardo, defined: Dendy (8) p. 208: Dragnewitsch (9) p. 19.— 
S. chilensis, n. sp., Calbuco, 19. — 28 m. : Thiele (36) pp. 485, 486, 
fig. 20. —S. elastica, varr. lobosa F. E. S., and crassa , n. var, : Dendy 
