494. BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
Paludina Beds, England. Lower Eocene. 
Elater sp. 
Baltic Amber. Lower Oligocene. 
Eucnemidae, (many). Elater, including Ampedus, (seven 
Eucnemis sp. sp.). 
Microrhagus sp. Elater naumanni Giebel. 
Elateridae, (many). Agriotes sp. 
Cardiophorus, (two ? sp.). Limonius, (two sp.). 
Cryptohypnus, (two sp.). Athous sp. 
Aix. Lower Oligocene. 
Elater, (two sp.). 
Siebengebirge. Upper Oligocene. 
Silicernius spectabilis Heyd. 
Greith, Switzerland. Upper Oligocene. 
Elaterites amissus Heer. 
Spitzbergen. Lower Miocene. 
Elater holmgreni Heer. Elater ehrenwardi Heer. 
Kutschlin, Bohemia. Lower Miocene. 
Campsosternus atavus Deichm. __Elaterites dicrepidioides Deichm. 
Oeningen. Upper Miocene. 
Adelocera granulata Heer. Ischnodes gracilis Heer. 
Lacon primordialis Heer. Limonius optabilis Heer. 
Alaus spectabilis Heer. Corymbites sutor Heer. 
Cardiophorus brauni Heer. Elaterites lavateri Heer. 
Cardiophorus sp. nov. Elaterites obsoletus Heer. 
Elater, (five sp.). Elaterites, (five sp.). 
Ampedus seyfriedi Heer. 
Myszyn, Galicia. Upper Miocene. 
Elater wisniowski Lomn. 
From the above list, it will be seen that only eighteen species have 
been specifically characterized from the European Tertiaries, scarcely 
enough to make a comparison with the Florissant fauna of any value. 
It should be noted, however, that several of the principal genera are 
taken to be identical in the two areas. Too much confidence must 
not be given the determinations in any case. Outside of the Floris- 
