Plate showing the shells of four species of sea snails in the family Muricidae, classified by the author in the genus Monoceros.
The name assigned by the author is given first, followed by the current name in parentheses:
- 8. Monoceros globulus (Acanthina unicornis)
- 9. Monoceros tuberculatum (Neorapana tuberculata)
- 10. Monoceros acuminatum (Acanthina monodon)
- 11. Monoceros cymatum (Mexacanthina lugubris)