| Dating of Acta Zoologica Lilloana (1943–1969) | ||||
| (date in bold considered earliest valid publication date) | ||||
| Vol. | Pages | Printed Year | Publication date* | |
| 1 | 1-91 | 1943 | 1943 | |
| 2 | 1-445 | 1944 | 29 Dec 1944 | |
| 3 | 1-330 | 1947 | 31 May 1947 | |
| 4 | 1-651 | 1947 | 12 Dec 1947 | |
| 5 | 1-531 | 1948 | 28 Oct 1948 | |
| 6 | 1949 | 1949 | ||
| 7 | 1950 | 1950 | ||
| 8 | 1-608 | 1949 | early 1950 | |
| 9 | 1-570 | 1950 | 25 Oct 1951 | |
| 10 | 1-722 | 1952 | Mar 1953** | |
| 11 | 1-589 | 1951 | 13 Nov 1951 | |
| 12 | 1-564 | 1951 | 15 Oct 1952 | |
| 13 | 1-390 | 1953 | Dec 1953 | |
| 14 | 1-396 | 1953 | 3 Sep 1954 | |
| 15 | 1-312 | 1958 | 29 Aug 1958 | |
| 16 | 1-273 | 1958 | 25 Sep 1958 | |
| 17 | 1-506 | 1959 | 10 Jun 1960 | |
| 18 | 1-455 | 1962 | 1962 | |
| 19 | 1-517 | 1963 | 10 Jun 1964 | |
| 20 | 1964 | 1964 | ||
| 21 | 1967 | Nov 1967 | ||
| 22 | 1967 | 15 Nov 1968 | ||
| 23 | 1967 | 14 Dec 1967 | ||
| 24 | 1969 | Jul 1969 | ||
| * from colophon unless otherwise indicated | ||||
| ** date stamped on reprint from volume | ||||