flavicollis, Hal. 2 



,, Hydrop. 33 

 flavipes, Hydr. 38, 39 



Hydr. 41 

 flavocinctus, Cyb. 5 

 Dyt. 8 



Hyd. 12 



flavomaculatus, Hyd. 12 

 flavoscutellatus, Dyt. 9 

 flexuosus, Dyt. 42 



,, Laccoph. 29 

 Flindersii, Col. 15 

 fluviatilis, Hal. 3 



Hydrop. 35 

 fontinalis, Ag. 24 

 Fordii, Col. 18 

 formosus, Hydr. 42 

 Forsteri, Suph. 28 

 fossarum, Ag. 20 

 foveolatus, Hydr. 43 

 Franklinii, Dyt. 8 

 frater, Hydrop. 35 

 fraternus, Ac. 10 

 frigidus, Ag. 23 

 fuliginosus, Col. 20 

 fulvicollis, Hal. 2 



Hyd. 13 

 fulvus, Hal. 2 

 fuscatus, Hydr. 38 

 fuscipennis, Ag. 20 

 fuscitarsis, Hydrop. 35 

 fusculus, Hydr. 39 

 fuscus, Col. 15 



GAG ATE s, Ag. 21 

 galapagoensis, Cop. 26 

 gangeticus, Or. 47 

 Gaudichaudii, Ag. 22 

 geminus, Hydrop. 33 

 Genei, Hydr. 42 

 gibbus, Gyr. 45 

 gibbosus, Hydrop. 32 

 gibbulus, Gyr. 45 



Suph. 28 

 gibbus, Hyph. 31 

 giganteus, Cyb. 4 

 glabratus, Hal. 1 

 glabriusculus, Hydr. 40 

 glacialis, Ag. 24 * 

 glaucus, Cyb. 6 

 Gyr. 43 



Or. 47 



globosus, Hyph. 30 

 glyphicus, Cop. 26 

 Goryi,Ag.23 



Cyb. 6 



Hydr. 12 

 Gotschii, Cyb. 5 

 Goudotii, Hydrop. 34 

 Gouldii, Din. 50 

 grsecus, Gyr. 45 

 grammicus, Hyd. 13 

 granarius, Hydrop. 34 



grandis, Din. 48 



,, Hydroc. 28 

 Hyph. 30 

 Troch. 4 



Vat. 30 

 granularis, Hydr. 42 

 Graphoderus, 13 

 Grapii, Col. 18 

 gravidus,Hal. 2 

 Grayii, Enhydr. 43 

 griseo-striatus, Hydrop. 35, 36 

 griseus, Eun. 10 



Hydr. 38 



groenlandicus, Col. 15 

 Guerini, Cop. 26 

 Guerini, Cyb. 4 

 guineensis, Hypb. 30 

 guttatus, As. 23 

 Hal. 2 



guttiger, Ilyb. 19 

 guttula, Hydroc. 28 

 guttulus, Ag. 24 

 Gyllenhalii, Hydr. 40 

 Gyretes, 47 

 Gyrinidse, 43 

 Gyrinus, 43 



HABILIS, Dyt. 9 

 hsemorrhoidalis, Col. 20 

 halensis, Hydrop. 35 

 Haliplidse, 1 

 Haliplus, 1 



hamulatus, Hydrop. 32 

 Harrisii, Cnem. 3 

 Dyt. 8 



Hydroc. 28 

 hastatus, Din. 50 

 havaniensis, Ac. 11 

 helvolus, Eun. 10 

 Hermanni, Peel. 4 

 heros, Not. 27 

 hispanus, Dyt. 8 

 Hceffneri, Ag. 24 

 bolosericeus, Hydr. 38 

 Hookeri, Onych. 7 

 Hoplitus, 3 

 humeralis, Hydr. 38 

 Hyph. 31 

 humilis, Hydr. 39 

 hyalinus, Lace. 28 

 Hybneri, Hyd. 13 

 hybridus, Dyt. 9 



Hydr. 38 

 Hydaticus,!! 

 Hyderodes, 7 

 Hydrachna, 4 

 Hydrocanthus, 27 ? 

 Hydropomorpha, 30 

 Hydroporidffi , 30 

 Hydroporus, 31 

 Hygrobia, 4 

 Hygrotus, 31 

 hyperboreus, Hydrop. 35 



