286 
THE VOYAGE OF H.M.S. CHALLENGER. 
PAGE 
PAGE 
monacaria, Jaeger (Holotliuria), 
172, 217 
okeni, BeU (Thyone), 
139 
monacaria, Lesson (Psolus), 
217 
OligotrocTivs, Sars, .... 
37 
Monocyclia, Lamport (Group), 
266 
Oncinolahes, Brandt, . . .19, 
20, 22 
monosticlia, Haacke (Holothuria), . 
239 
oolitica. Semper (Haplodactyla), . 
51, 53 
monotuberculata, Quoy and Gaimard 
oolitica, Selenka (Molpadia), 
51, 53 
(Holothuria), 
197 
oolitieum, PourtaRs (Chirodota), . 
53 
moseleyi, n. sp. (Stichopus) 
165 
ooliticum, Danielssen and Koren (Trocho- 
montagui, Bell (Cucumaria), 
116 
stoma), .... 
53 
montagui, Fleming (Holothuria), . 
106 
ooplax, von Marenzeller (Synapta), 
25 
Miilleria, Jaeger, 
134, 197 
operculatus, PourtaRs (Cuvieria), . 
130 
multipes, n. sp. (Cucumaria), 
72 
operculatus, Verrill (Lepidopsolus), 
130 
muricata, Studer (Trachythyone), 
139 
operculatus, PourtaRs (Psolus), 
87 
murrayi, n. sp. (Holothuria), 
185, 187 
ophidiana, Quoy and Gaimard (Holothuria), 
240 
murrayi, n. sp. (Psolus), . 
85 
Orcula, Troschel, . . . 97, 149 
murrayi. Bell (Stereoderma), 
142 
ornatus, Verrill (Lissothuria), 
127 
musculosa, Semper (Thyone), 
141 
ovata, Risso (Holothuria), 
240 
musculosa, Ayres (Thyonidium), . 
141 
ovulum, Selenka (Stolus), . 
138 
musculus, Semper (Haplodactyla), 
50 
ovulum. Semper (Thyone), 
138 
musculus, Risso (Molpadia), 
50 
Pcelopatides, n. gen., .... 
154 
Myriotrochus, Steenstrup, 
37 
pallidus, Ayres (Trochinus), 
34 
naso, Haacke (Stichopus), 
191 
panaensis. Semper (Chirodota), 
37 
naso. Semper (Stichopus), 
192 
panamensis, Verrill (Pentacta), 
116 
natans, Sars (Holothuria, Stichopus), 
193 
panamensis, Th4el (Cucumaria), . 
116 
neilUi, Leslie and Herdman (Cucumaria), . 
116 
pandanensis ( = hoholensis, var.). Semper 
neilUi, Fleming (Holothuria), 
116 
(Psolus), .... 
128 
neglectum, Haacke (Labidodemas), 
218 
papillosa, 0. F. Miiller (Holothuria), 
134 
niger, Ednahan (Cucumaria), 
238 
papillosa, Johnston (MiLlleria), 
134 
nigra, Peach (Holothuria), 
238 
papillosa, Forbes (Thyone), 
134 
nigra. Semper (Synapta), . 
20 
papuensis {=fusus, var.), nov. (Thyone), . 
92 
nigricans, Selenka (Cucumaria), . 
104 
paradoxa, Selenka (Holothuria), . 
206 
nigricans, Brandt (Cladodactyla, 
subg. 
paradoxus, Lamport (Stichopus), . 
265 
Polyclados), . 
104 
pardalis, Selenka (Holothuria), 
224 
nigricans, Stimpson (Pentacta), 
104 
parva, Krauss, Lamport (Holothuria), 
264 
nohilis, Ludwig (Cucumaria), 
114 
paroa, Ludwig (Cucumaria), 
111 
nohilis, Lamport (Semperia) = Cucumaria 
parva, Lamport (Semperia) = Cucumaria 
nohilis. 
parva. 
nohilis, Selenka (Miilleria), 
198 
parva { = murrayi, var.), nov. (Holothuria), 
186 
notahilis, Ludwig (Holothuria), 
228 
parvula, Verrill (Actinopyga), 
199 
ohesa, Selenka (Miilleria), 
200 
parvula, Haacke (Miilleria), 
219 
ohscura, Verrill (Actinopyga), 
238 
parvula, Selenka (Miilleria), 
199 
ohscura, Lesueur (Holothuria), 
238 
parvum, Ludwig (Thyonidium), . 
147 
ohunea, Lamport (Cucumaria), 
265 
Pattalus, Selenka, .... 
144 
occidentale, Ludwig (Thyonidium), 
147 
pauper, Selenka (Embolus), 
56 
occidentalis, Ludwig (Holothuria), 
228 
PEDATA, Claus (Order), 
57 
oceanica. Lesson (Holothuria), 
27 
pedata. Semper (Thyone), . 
140 
oceanica, Jaeger (Synapta), 
27 
pellucida, Blainville (Cucumaria), . 
34 
ocellata, Jaeger (Bohadschia), 
239 
pellucida, Brandt (Dactylota), 
34 
ocdlata, Semper (Holothiuia),' 
178 
239 
pellucida { = molpadioides, var.). Semper 
Ocnus, Forbes, 
75, 117 
(Haplodactyla), 
50 
