A discussion of the sponge fauna of the Dry Tortugas in particular and the West Indies in general, with material for a revision of the families and orders of the Porifera / M. W. Laubenfels
Enth. Bde. 101 - 102 von "Publication / Papers from the Tortugas Laboratory of the Carnegie Institution of Washington" - 102 = 1908 1 von "Papers from the Tortugas Laboratory ..."
Enth. 1931 27 (=413 von "Publication / Papers from the Tortugas Laboratory of the Carnegie Institution of Washington") und 1930 22 (=126 - 133) von Contrib. to Embryology (=414 von Publlications ...)