454 
THE VOYAGE OF H.M.S. CHALLENGER. 
Plate 
Page 
Plate 
Page 
Sigmatophora, 
. . cx, cxxi, 1 
Stellettinopsis, 
cxUi, 201 
sigmatophora {Aiicorina), 
205 
stellettodes (Cbaracella), 
101 
simillima (Craniella), . 
r xxiv, xl, xci, cxxiv 
stellettodes [Pachastrella), . 
101 
II., V., XL. 
[30, 40, 54, 55 
stellifera {Amorphina), 
208 
simillima ( Tethea), 
30 
stellifera (Coppatias), . 
208 
simplex (Asteropus), 
. cxlii, 205 
stellifera {Stellettinopsis), 
208 
simplex (Calthropella), 
X. 
cxxxiii, 107, 111 
stelligera (Corticella), . 
clii, 281 
simplex (Chrotella), 
II. 
/ xix, Ixxxvii, cxxiii 
stelligera (Easpalia), 
412 
Icxxv, 17 
stelligerum {Corticium), 
281 
simplex (Cydonium), . 
264 
stelligerus (Suberites), . 
412, 414 
simplex (Geodia), . 
264 
stellivarians (Hymedesmia), . 
412 
simplex (Placortis), . . 
eli, 279, 419, 422 
stellosa (Geodia ?), 
410 
simplex (Samus), . 
102 
stellosa (Isops), 
410 
simplex {Stellettinopsis), 
205 
Sterrastrosa, 
209 
simplex (Stceba), . 
. cxxxi, 102 
stipitata (Tethya), 
49 
simplicifurca (Myriastra), 
simplicissima {Ancorina), 
XII. 
114 
179 
stipitata (Tetilla ?), 
( Ixvi, cx, cxxiii 
1 49, 59 
simplicissima (Myriastra), 
179 
Stceba, .... 
cxxxi, cxxxiv, 102 
simulans (Halichondria), 
xciii 
Streptastrosa, 
59 
sinuosa (Discodermia), 
330 
rxl, cix, cx, cxxxvi 
r xi, xxviii, xxx 
Steyphnus, .... 
-| cxxxvii, cxl, cxli 
SiPHONIA, .... 
-j xxxii, cxviii, 299 
1 171, 409 
Uoo, 405 
stuposus (Dictyocyliiidrus), . 
412, 420 
SiPHONIDIUM, 
clvii, 317, 348 
suberea (Suberites), 
xlviii 
sollasi (Proteleia), 
. Ixxi, Ixxxvi, 259 
Suberitidse, . 
xxxvii, 418 
sphaeroconia (Caminus), 
XXVII. 
/ xxvii, xxxiii, xlvi 
subrnersa (Faugophilina), 
55 
llxii, 214 
subtilis (Myriastra), 
XIV. 
cxxxviii, 113 
sphairoides (Isops), 
268 
SULCASTRELLA, 
. cliv, 337 
sp. (Geodia), 
sp. Thenea), 
VIII. 
Ixxxvii 
77, 78 
superstes (Heosiplionia), 
XXXI. 
/ xxviii, xxxii, cliv 
1299 
sp. (Tetilla), 
36 
superstes (Cystispongia), 
398 
spherica (Tethya), 
435 
r xxxii, xlviii, xc 
r cix, cx, cxxxi 
swinhoei (Tbeonella), . 
XXIX., xxx 
-j cxvii, cliii, 284 
Sphinctkella, . 
-j cxxxi V, cxxxv, 87 
1326 
189 
Sympyla, .... 
353 
spiculitesta (Rotalia), . 
Ixxiv 
Synops, .... 
. cxlix, 227, 265 
spinatostellifera (Hymeni- ) 
412 
Taxoploca, 
. . xxviii 
addon), . . . . J 
tenuilaminaris (Normania), . 
85 
Spintharophora, . 
413, 416, 419, 421 
tenuilaminaris (Poecillastra), . 
V. 
85 
spiuispirulifera(Z)»sco(^er'OTia), 
333 
tenuispicula (Pilochrota), 
XV. 
127 
spinispirulifera (Racodiscula), 
333 
ternatus (Acarnus), • 
. . Ixxi 
Spiraspinthara, 
418, 432 
f xxii, xci, cxxi 
Spirastj;ellid 0 B, 
419 
Tethya, .... 
[ cxliv, 427 
spongeli® (Oscillaria) [Alga], 
Spongiee, .... 
■ . . 118 
. . xcv 
Tethyidae, .... 
/ xxxvii, 417, 427, 
1435 
Spongilla, .... 
. . xvi, xlv 
tethyoides (Craniella), . 
54 
Spongodisctjs, 
squamata (Columnitis), 
337 
441 
Tbthyopsis, . . 
/ cxxxvi, cxxxvii 
t cxl, cx;li, 189 
stalactites (Vetulina), . 
. xlviii, xc, 354 
tetbyopsis (Antbastra ?), 
. 149, 203 
stellata {Gometella), 
440 
tetbyopsis (Myriastra ?), 
203 
stellata (Hymedesmia), 
412 
tetbyopsis (Stelletta), . 
149, 203 
stellata (Tethya), . 
440 
fxi, XV, xxiii, xxxi 
stellatum (Cnemidium), 
348 
^ xvi, xxiv, xxvii, xlv 
J Ixx, cxxvii, cxxxiv 
Tetilla, .... 
1 xxxvi, xlv, Ixvi 
■i Ixxxv, cviii, . cix 
Stelletta, .... 
j cxxiii, cxxiv, cxxxv 
1 cxxxv, cxxxvii 
U, 16, 50, 421 
''Cxxxix, 150 
Tetillidfe, .... 
. 1, 56, 404 
Stellettidce, .... 
/ cxii, cxxxiv, 112, 
Tetillidae, Tabular view of, . 
56 
U04 
Tetracladidse, 
cliii, 284, 326 
