ARTICULATA, 
227 
Gelasimus, ( Lat .) xiii. 157 
the genus, 281 
Gelasima maracoani, 282 
Gelasimus pugillator, 282 
vocans, 282 
Geo-bdella, ( Blain .) 33 
trochetii, 33 
Glosso-bdella, (Blain.) 35 
Glossopera, ( John’s ) 35 
Glycera, ( Sav .) 23 
Meckelii, 23 
Gnathia, (Leach) 212 
Gnathophyllum, (Latr.) 192 
Gomeza, new genus of, 296 
bicornis, 296 
Gonodactylus, (Latr.) 200 
Gonoleptes, (Kirby) 501 
Gonoplax, (Leach) 156 
Gordius, 35 
aquaticus, 36 
Grancio, of the Italians, 278 
Granzo, of the Italians, 279 
Grapsi, the, 294 
Grapsus, (Lam.) 160 
cinereus, 295 
pictus, 289. 294. 458 
varius, 160. 295 
Grimotea, (Leach.) 184 
Hsemocharis, (Sav.) 34 
Haemopsis, (Sav.) 32 
sanguisorba, 32 
Halitheae, (Sav.) 26 
Helluo, (Oken.) 33 
Hermits, what called, 305 
Hesione, 24 
festiva, 24 
pantherina, 24 
splendida, 24 
Hepatus, (Lat.) 153 
fasciatus, 154 
Heteropa, 211 
Hippa, (Fab.) 178 
adactyla, 179 
Hippeus, what called, 283 
Hippides, (Latr.) 178 
Hyppolyte, (Leach) 193 
Hipponoe, (Aud. fy Edw.) 19 
Gaudichaudii, 19 
Hirudo, (Lin.) 31 
branchiata, 27* 35 
complanata, 35 
grossa, 35 
hippoglossi, 35 
hyalina, 35 
medicinalis, 32 
medicinal utility of, 120 
Hirudo muricata, xiii. 34 
octoculata, 33 
piscium, 34 
sanguisuga, 32 
sexoculata, 35 
trioculata, 35 
vittata, 34 
vulgaris, 33 
Holetra, 526 
(Hermann) 500 
Homola, (Leach) 174 
spinifrons, 174 
Homard, 304 
Hyas, (Leach) 168 
Hydrachna, (Lat.) 508 
(Mull.) 507 
Hydrachnellse, 507 
Hymenocera, (Latr.) 192 
Hymenosoma, (Leach) 170 
orbicularia, 170 
Hyperia, (Latr.) 206 
Hypobdella, (Blain.) 32 
Hypogaeon, (Sav.) 30 
hirtum, 30 
Ibacus, (Leach) 183 
Peronii, 183 
Icthyobdella, (Lamarck) 34 
Icthyophilus, (Latr.) 217 
Idotea, (Fab.) 222 
aquatica, 223 
Idote'ides, (Leach) 222 
Ilia, (Leach) 162 
nucleus, 162 
Inachus, (Fab.) 170 
cornutus, 166 
Dorsettensis, 171 
Sagittarius, 171 
Inequiteles, 410 
Infusoria, what named, 46 
Insects, the, 4. 131 
Intestinal worms, what named, 39 
lone, 207 
Iphis, (Leach) 162 
Isopod, the order, 318 
Isopoda, 215 
Ixa, (Leach) 162 
Ixodes, (Latr.) 506 
ricinus, 507 
reflexus, 507 
reticulatus, 507 
Jaera, (Leach) 224 
albifrons, 224 
Janira, (Leach) 223 
maculosa, 223 
I Jassa, (Leach) 211 
G g 2 
