| Citation | Leach, W.E. 1816 Annulosa. In Encyclopedia Britannica (supplement to fourth, fifth and sixth editions), London. p. 401-453. |
| DOI / ISBN | |
| Paper URL | |
| Ref. No. | 79229 |
| Language | English |
| Usage | not seen |
| Remarks | |
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| Cross references | 76884 |