Zoology

KUHN, OSKAR.

Stuttgart, 1949.

NAEF, ADOLF.

Jena, 1922.

HEDPETH, JOEL W. (ED.).

Baltimore, 1957.

THINGVALLAVATN -

Odense, 1992.

STROMER v. REICHENBACH, ERNST.

Leipzig u. Berlin, 1912.

KJØLBYE, C.S.

Kbhvn., 1821.

HOLMGREN, NILS.

Uppsal & Stockh., 1909-13.

HARDY, ALISTER.

London, 1959.

INNES, WILLIAM T.

Philadelphia., (1949).

PRAEGER, ROBERT LLOYD.

London, 1950.

WALKER, JAMES J.(edt.).

Oxford, 1934.

AMUCHÁSTEGUI, AXEL.

London, (1967).

THORPE, W.H.

London, (1956).

JONES, J.W.

London, 1959.

BRÆNDEGAARD, JENS.

Coph., 1946.

VENABLES, L.S.V. a. U.M.

Edinburg, London, (1955).

ALDRICH, JOHN WARREN a. BENJAMIN P. BOLE.

Cleveland, 1937.

GRAY, JAMES.

London, 1968.