MOLLUSCA. ZOOPHYTES. 
209 
Helicostega, ( D‘Orbigny ) xii. 17 
ammonoida, 17 
nautiloi'da, 17 
Helix, 29 
(Lin.) 34 
aculeata, 29 
segoptlialmus, 29 
albella, 29 
ampullacea, 61 
arbustorum, 29 
aspersa, 29 
brevipes, 30 
(Bulimus) zebra, 280 
castanea, 29 
cicatrosa, 29 
cincta, 29 
citrina, 29 
cornea, 34 
cretacea, 29 
decollata, 30 
epistylium, 29 
extensa, 29 
fragilis, 35 
fruticum, 29 
fulva, 29 
fuscescens, 29 
glauca, 29 
globulus, 29 
grisea, 29 
haemastoma, 29 
hortensis, 29 
I tala, 29 
janthina, 64 
lapicida, 29 
lactea, 29 
ligata, 29 
limosa, 35 
lucerna, 29 
lucorum, 29 
Lusitanica, 29 
nemoralis, colour of, 162 
nemorensis, 29 
neritella, 62 
nivea, 29 
oblonga, 31 
ovalis, 31 
palustris, 35 
the peculiar organ of the, 336 
pellucida, 30 
picta, 29 
pomatia, 29. 339 
pulla, 29 
putris, 32 
rapa, 29 
ringens, 30 
rosacea, 29 
rufa, 30 
scarabaeus, 35 
Cuv. Index. 
Helix sinuata, xii. 29 
spirorbis, 34 
stagnalis, 35 
striata, 62 
terrestris, 29 
turturum, 29 
venusta, 29 
vertigo, 31 
vittata, 29 
vivipara, 59 
vortex, 34 
Hellicostega turbinoida, 17 
Hemicardium, 112 
Heteropoda, the, 25. 352 
(Lam.) 49 
Hexastoma, 473 
Hiatella, (baud.) 121 
Himantopus, 521 
Hinnita, (Defr.) 95 
Hippocrenes, (Montf) 82 
Hippopus, 110 
(Quoy fy Gaim.) 491 
Hipponyx, (Defr.) 65 
Hippurites, 92 
Holostoma, (Nitzsch) 472 
Holothuria, (Lin.) 450 
frondosa, 452 
papillosa, 453 
phantapus, 451 
physalis, 490 
Priapus, 454 
regalis, 452 
spirans, 489 
squamata, 452 
Thalia, 127 
tremula, 452 
zonaria, 128 
Holothurise, the, 544 
Hortoles, of Montfort, 14 
Hyalaea, the, 316 
Hyalea, (Lam.) 20 
cornea, 20 
the body of the, 317 
digestive apparatus of the, 320 
foot of the, 321 
mantle of the, 318 
trunk and eyes of the, 319 
Hydatid, the globular, 479 
Hydatides, 479 
Hydnophora, (Fisc.) 512 
Hydra, Linn. 497 
the, 575 
fusca, 497 
sociata, 496 
viridis, 497 
Hydrse, locomotion of the, 576 
reproduction of the, 577 
Hydrae, residence of the, 578 
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