| Citation | Gordon, M.S., 1948, A possible function of the urostyle in immature Umbra pygmaea.. Copeia 1948(3):224. |
| Ref. | 39069 Gordon, M.S., 1948 |
| Page | 224 |
| Named Used as Valid | Umbra pygmaea |
| Comment | Cited in Ref. 4639. Not actually seen. |
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