Some Remarks on the Relict Forms of Cottus quadricornis L. in Swedish Freshwater Lakes. - Notes on some Relict Forms of Cottus quadricornis L. recently found in Swedish Freshwater Lakes.
Häftad bok.
Nära nyskick. Sthm 1932 & 1939. 24 s. + 6 s. + 1 utvikbar pl. Extrakt ur AZ. Helt oskurna.