282 
THE VOYAGE OF H.M.S. CHALLENGER. 
PAGE 
Duasmodactyla, Ayres, . . .144 
dubeni, Norman (Thyonidium), . .143 
duiia, Semper (Chirodota), . . 37 
dubia, Brandt (Holotliuria, subg. Micro- 
tbele), .... 200 
dubia, Semper (Synapta), . . .28 
dubiosa, Semper (Cucumaria), . , 111 
dubiosa, Lampert (Semperia) = Cucumaria 
dubiosa. 
dubiosum, Ludwig (Labidodemas), . 189 
dunedinemis, Jeffrey Parker (Chirodota), . 34 
dwplicatus, Lampert (Eucyclus), . .268 
duverncea, Quatrefages (Synapta), . . 24 
ecalcarea, Sars (Holotburia), . . 237 
echinata, von Marenzeller (Cucumaria), . 103 
ecMnites, Jaeger (MiiUeria), . . 201 
EcMnocucumis, Sars, . . . ,118 
Echinosoma, Semper, . . . .49 
edulis, Lesson (Holotburia), . .216 
edulis, Jaeger (Trepang), . . ,216 
ehlersi, Heller (Thyonidium), . ,148 
ehrenbergii, Semper (Phyllophorus), . 151 
ehrenbergii, Selehka (IJrodemas), . . 151 
elegans, Lamarck (Fistularia), , , 212 
elegans, 0. F. Muller (Holotburia), . 212 
elegans, Brandt (Holotburia, subg. Thele- 
nota), . . . .212 
elegans, Th4el (Trocboderma), . . 38 
elegans, Norman (Thyone), , . . 141 
elongata, Diiben and Koren (Cucumaria), 106 
elongata, Semper (Orcula), , . 142 
elongata, Th^el (Thyone), . .142 
elongaturn, Ayres (Thyonidium), . .142 
Embolus, Selenka, . . . .56 
enalia, Lampert (Holotburia), . . 264 
^hippifer, WyviUe Thomson (Psolus), 90, 129 
erinaceus. Semper (Holotburia), . . 206 
errans, Ludwig (Stichopus), . .190 
Eucyclus, Lampert, .... 268 
Eupyrgus, Liitken, . . , .49 
excellens, Ludwig (MiiUeria), . .199 
exigua, Ludwig (Cucumaria), . .108 
eximia, Haacke (Chirodota), . . 35 
fabricii, Diiben and Koren (Cuvieria), . 128 
fabricii, VerrUl (Lophothuria), . .128 
fabricii, Liitken (Psolus), , ,128 
fallax, Ludwig (Cucumaria), , , 102 
farcimen, Selenka (Holotburia), . . 220 
fasciata, Yerrill (Bohadschia), . . 239 
PAGE 
fasciata, Lesueur (Holotburia), . .239 
fasciata, Quoy and Gaimard (Holotburia), 240 
fasciata, Kubl and v. Hasselt (Synapta), 23 
fasciola, Quoy and Gaimard (Holotburia), 217 
ferruginea, Verrill (Toxodora), . . 33 
ferruginea, Th^el (Chirodota), . . 33 
firma. Semper (Thyone), . . .120 
firmus, Selenka (Stolus), . . . 120 
Fistularia, Brandt, .■ 19, 20, 23, 29, 229, 238 
flammea, Quoy and Gaimard (Holotburia), 217 
flammeus, Brandt (Stichopus), . . 217 
flava, Eathke (Holotburia (Minyas ?)), Addenda 
flava, Lampert (Synapta), . Addenda 
flavo-castanea, n. sp. (Miilleria), . .198 
flavo-maculata. Semper (Holotburia), . 210 
flavum, Greeff (Thyonidium), . .148 
flexus, Hodge (Thyone), . . .141 
floccosa, Norman (Thyone), . . 142 
florid, ana, Pourtal^s (Holotburia), . . 213 
forbesii. Couch, Peach (Psolus), . ,132 
formosa, Selenka (MiiUeria), . . 199 
forskaalii, Delle Chiaje (Holotburia), . 240 
forsteri, Brandt (Oncinolabes), . . 22 
frauenfeldi, Ludwig (Cucumaria), . 109 
frauenfeldi, Ludwig (Phyllophorus), . 151 
frondosa, Forbes (Cucumaria), . . 110 
frondosa, Blainville (Cuvieria), . . 110 
frondosa, Gunnerus (Holotburia), . 110 
frondosa, Ayres (Pentacta), . 109 
frondosa, Jseger (Pentacta), . . 110 
/wacoZa, Forbes (Cucumaria), . , 110 
fulva, Quoy and Gaimard (Holotburia), . 233 
fusca, Quoy and Gaimard (Fistularia), . 23 
fusca, Brandt (Chirodota), . . 23 
fusca, Selenka (Synapta), . . .23 
fuscescens, Brandt (Oncinolabes), . . 19 
fusco-coerulea, n. sp. (Holotburia), . 211 
fusco-cinerea, Jseger (Holotburia), . . 221 
fusco-cinerea, Selenka (Holotburia), . 216 
fusco-punctata, Quoy and Gaimard (Holo- 
thuria), . . . .217 
fusco-punctata, Jseger (Holotburia), . 235 
fusco-rubra, n. sp. (Holotburia), . , 182 
fuscus, Ludwig (Stichopus), . . 191 
fusiformes, Desor (Cucumaria), . . 142 
fusiformis, Forbes (Cucumaria), . . 106 
fusus, Troscbel (Anaperus), . . 134 
fusus, Delle Chiaje (Holotburia), . . 153 
fusus, 0. F. Muller (Holotburia), . .134 
