1908ref. VF146821908 71p., 33 figs, 2 lithographed pls, 4to, printed wrappers. Unopened copy. Author's dedication.
1898ref. VF147731898 60 p., 4 double-page lithographed pls, disbound (no covers). Unopened copy. Published in: Ann. Mus. Zool. Acad. Imp. Sci. St. Petersburg.
1881ref. VF147751881 42 p., 4 (3 double-paged) lithographed pls, disbound (no covers). Unopened copy.Published in: Morpholog. Jahrbuch.
1881ref. VF147761881 72 p., 5 (3 double-paged, 1 folded, 1 col.) lithographed pls, disbound (no covers). Unopened copy.Published in: Morpholog. Jahrbuch.
1837ref. VF147771837 4 p., 1 engraved plate, disbound (no covers). Published in: Mag. Zool. Bot.
1875ref. VF150831875 pp. 149-211, 21 lithographed pls, paperbound. First part of text missing, but the plates are complete.
1985ref. VF152131985 76 p., 5 figs, disbound (no covers). Published in: Zoological Journal of the Linnean Society. We added from the same journal: Wheeler, Further notes on the fishes from the collection of Laurens Theodore Gronovius (1730-1777) (14 p., 3 figs)
1858ref. VF152171858 76 p., 6 (4 folded) pls, disbound (original front cover of journal added loose). Unopened copy. Published in: Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Scarce.
1944ref. JF152211944 67 p., 26 figs, stapled. Published in: Boletim do Museu Nacional. Somewhat foxed.
1898ref. VF152231898 7 p., 7 pls, roy. 4to, front cover present (with marginal waterstain). Paper brittle. Lower right corner (small & blank) of last plate missing. Plates numbered 18-24. Not in best condition, but quite rare in any condition.
1971ref. VF152241971-1992 mostly stapled reprints, a few disbound.
2004ref. VF152882004 2 vols. 260, [3] p., 205 pls, 4to, paperbound. Bulletin of the Biological Society of Washington. Good copy, as new.
1920ref. JF153011920 xv, 186 p., num. figs & pls (several col.), frontispiece, publisher's blue decorated cloth. Very good copy.
2011ref. VF159502011 vi, 168 p., 136 (num. col.) figs, 4to, paperbound. Fieldiana.
1981ref. VF159641981 223 p., 99 figs, paperbound.
1941ref. VF159671941 331 p., 116 figs, paperbound. Crisp copy, as new.
1962ref. VF160121962 96 p., 11 figs, 1 pl., paperbound. Published in: Zoologische Verhandelingen. Crisp copy, as new.
1974ref. VF160191974 256 p., 41 figs, 15 pls, paperbound. Published in: Zoologische Verhandelingen. Crisp copy, as new.
1985ref. JF161101985 20 p., 27 col. maps, oblong, folio, paperbound. Library stamps.
2005ref. VF162042005 149 p., num. figs, paperbound. Thesis.
2007ref. VF162052007 167 p., num. figs, paperbound. Thesis.
1932ref. JF167081932 168 p., 62 figs, paperbound (printed covers). Station océanographique de Salammbô. Bulletin n° 29. Ex library G.J. van Oordt. Good copy. Scarce.We have added 2 more works by Heldt on the ''Thon Rouge or Red Tuna'', all published by the Salammbo Station: Le Thon Rouge, mise a jour de nos connaissances sur ce sujet (1927 - 24 p., 4 figs) & Le Thon Rouge, progrès des recherches sur la question (1928 - 37 p., 5 figs).
1842ref. VF168061842 20 p., 2 (1 col. and folded) lithographed pls, disbound (no covers). Published in: Annales des Sciences Naturelles. Rare.
1841ref. VF168081841 51 p., 1 folded lithographed plate, disbound (no covers). Last page (4 lines) in photocopy. Published in: Annales des Sciences Naturelles. Rare.
1878ref. VF169211878 74 p., 2 tinted lithographed pls, 4to, original green printed boards. Published in: Abh. K. Akad. der Wissenschaften. Berlin.