| Citation | Underhill, A.H., 1948, Studies on the life history of the chain pickerel, Esox niger Lesueur.. Cornell University. 177 p. Ph.D. thesis. |
| Ref. | Underhill, A.H., 1948 |
| Page | 27-117 |
| Named Used as Valid | Esox niger |
| Comment | Cited in Ref. 4639. Not actually seen. |
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