Drepanura ketteleri Monke var.
| 1956. | Drepanura ketteleri Monke var. Kobayashi, T. 1956e p. 280, pl. 40, fig. 10 |
| Condition: | Missing |
| Preservation: | Plaster cast: The original specimen in the Faculte des Sciences, Saigon, at that time |
| Taxonomy: | Arthropoda: Trilobita: |
| Kobayashi, T., 1956e: Miscellaneous notes on the Cambro-Ordovician geology and palaeontology, 26. Supplementary notes on the Cambrian trilobites from southeastern Asia. Transactions and Proceedings of the Palaeontological Society of Japan. New Series, no. 24, pp. 277–284, pl. 40. (Reference No. 0148) |
 PDF in prep. |
| Ichikawa, T. and Hayami, I., 1978, no. 2, p. 150. |
