452 
THE 
VOYAGE OF H.M.S. CHALLEHGEK. 
Plate 
Page 
Plate 
Page 
nana (Nethea), 
. cxxxii, 103 
panoplia (Discodermia), 
XXXII. 
295 
nana {Tisiphonia), 
103 
Pantseosa, .... 
cxlix,245,255,265 
Neopelta, .... 
c cxviii, clvi, 310 
papillata (Discodermia), 
329 
1344 
papillosa {Plectronella), 
li 
Feosiphonia, 
f xxviii, cliv, 299 
l405 
Papyehla, .... 
f cxxxvi, cxxxvii 
\ cxli, 198 
XXIV., 
I XXXV, Ixxxviii 
parasitica (Arabescula), 
407 
neptuni (Synops), . . ^ 
XXV., 
|227, 257 
parasitica {Corallistes), 
407 
XXVI. 
parasitica {Geodia), 
270 
Nethea, .... 
cxxxii, cxxxix, 103 
parasitica (Isops ?), 
270 
niger (De.rcitus), . 
108 
parasiticum {Coriicium), 
282 
niger (Stryphnus), 
XIX. 
. xl, cxl, 171, 193 
parasiticus {Pachastrella), 
102 
nigrum (Ecionema), 
198 
parasiticus {Samus), 
102 
nitida (Synops), . 
XXI. 
231 
parasiticus (Triptolemus), 
102 
nodastrella (Geodia), 
247, 257 
Parazoa, .... 
xcv 
nodosa (Daedalopelta), . 
. ■ civ, 342 
parvispicula (Anthastra), 
XIII., XL. 
. xliii, 145 
noli-tangere (Corallistes), 
. 308, 339 
patelliformis (Xenospongia), 
443 
Normania, 
. cxxix, cxxx, 79 
pathologica (Stelletta), 
cxxxvi, 202 
normani (Cydonium), . 
263 
paupera (Geodia), 
252 
normani (Dragmastra), 
XLIII. 
( xli, Ixiii, cxi, 
1 cxxxix, 187 
pedifera (Tetilla), 
XLI. 
/ XV, xvii,xlvi,cxxiv 
Icxxvi, 6, 9, 149 
normani (Pachymatisma), 
243 
perarmata (Geodia), 
245 
normani (Stelletta), 
187 
perfecta (Neopelta), 
. clvi, 344 
norvegica (Tethya), 
435 
pergamentacea {Geodia), 
262 
Nostoc, .... 
289 
pergamentaceum (Cydonium), 
262 
nu cerium {Discodermia), 
331 
Petrosia, .... 
xxviii 
nucerium (Racodiscula), 
nux (Cydonium), 
331 
260 
pfeifferee (Azorica), 
XXXVI. 
f xxi, xc, cxvii, clviii 
1 127, 319, 404, 405 
nux {Stelletta), 
205, 260 
Phakellia, 
420 
nux ( Tethya), 
260 
phlegrsei (Isops), . 
. cxlix, 267 
obtectum (Setidium), . 
. . clviii, 350 
r xvii, xix, xxiii 
oflBicmalis (Euspongia), . 
xl, 22 
phrissens (Stelletta), 
XVI. 
-! xxvii, xxxi, xci 
Ophiurids, .... 
23 
vcxlvii, 150 
ornata (Callipelta), 
XXXVIII. 
. civ, 309 
^ xxii, xli, Ixxxv 
1 Ixxxvii, cxxxvi 
ornata (Discodermia), . 
XXXI. 
297 
Pilochrota 
ornata (Spbinctrella), . 
XEII. 
90 
1 cxxxvii, cxxxviii 
ornatus (Thrombus), 
283 
U20 
Oscillaria sp.. 
233, 289 
pilosa {Spongia), . 
51 
osmlosus {Caminus), 
242 
placenta (Geodia), 
248 
ovata {Emploca), . 
. xxviii, 287 
placentula (Hymeniacidon), . 
cxxx, 98 
ovata (Taxoploca), 
xxviii 
^ xi, XV, xxvii, xxxvi 
■ 
r Ixxii, cxix, cxx 
Placina, .... 
! lxvii,lxviii,lxxviii 
1 Ixxxiii, Ixxxvii 
Paohastrella, . 
-! cxxxi, cxxxiii 
V cxxxiv, cxxxv, 104 
''cviii, cl, 278, 419 
Pachastrellidee, 
/ cxi, cxxxii, 16 
r Ixxii, Ixxxiv, 
ll04 
Placinastrella, 
-| cxxxii, cxxxiv, 103 
pachastrelloides {Ancorina), 
205 
U2I 
pacliastrelloides (Characella), 
409 
Placinidee, .... 
cxiii, cl, 278 
pachastrelloides {Stelletta), . 
409 
Placortis, .... 
cli. 279, 404, 419 
pachydermata (Isops), . 
xc, 236 
Placospongida*, 
271 
pachydermata (Pilochrota), . 
XXXVIII. 
. xxii, xliii, 122 
^xxxix, Ixxxvi, cvi 
1 cix, cxxxv, cxliii 
1 cxlv, cxlvi, cxlviii 
Placospongia, . 
r i, Ixvii, cxxi, cxliii 
\cxliv, cl, 271 
Pachymatisma, . 
pleiades (Cydonium), . 
257 
plena (Plocamia), 
. . Ixvii 
*^242 
Pleroma, .... 
J cxviii, cxx, clvi 
packardi (Scleritoderma), 
. clvii, 317, 346 
I312 
pallida (Isops), . 
267 
Pleromidse, .... 
. clvi, 312, 343 
panicea (Halichondria), 
Hi, 208 
plicata (Calcabrina), 
cli, 281 
jjaniceus (Tretolophus), 
. clviii, 325 
plicatum {Gortidum), . . 
. . 281 
