Pycnogonida /
Hartmeyer, R.
Pycnogonida / by Fr. Meinert ; translated by Torben Lundbeck. - Copenhagen : Bianco Luno, 1899. - 71 p. : ill. ; 32 cm. - The Danish ingolf-expedition ; 3.1 .
Pycnogonida / by Fr. Meinert ; translated by Torben Lundbeck. - Copenhagen : Bianco Luno, 1899. - 71 p. : ill. ; 32 cm. - The Danish ingolf-expedition ; 3.1 .