| Issue | #31 |
| Published | April 1949 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Stan Lee |
| Characters | Sub-Mariner |
| Genre | superhero |
| Pencils | Gustav Schrotter |
| Inks | Gustav Schrotter |
| Characters | Dr. Dill |
| Genre | superhero |
| Pencils | Al Gabriele |
| Inks | Al Gabriele |
| Characters | Betty Dean; Atlantis; Nagorbu |
| Genre | superhero |
| Pencils | Charles Nicholas |
| Inks | Charles Nicholas |
| Genre | superhero |
| Pencils | Allen Bellman |
| Inks | Allen Bellman |
| Notes | Inks credits originally given to Mike Sekowsky in error (per Tony Isabella, March 30, 2006). Pencils and inks credits from Jim Vassallo via the Timely-Atlas-Comics Group (timely-atlas-comics@yahoogroups.com), 24 August 2008; original indexer credited the pencils to Mike Sekowsky. |
| Characters | Lem Snipe |
| Genre | superhero |
| Pencils | Al Gabriele |
| Inks | Al Gabriele |
| Characters | The Spoiler |
| Genre | superhero |
| Pencils | Al Gabriele |
| Inks | Syd Shores |