Jonas Niclas Ahl

In his 1789 dissertation, he described the genus Ophichthus as well as the species Echidna nebulosa (under the protonym Muraena nebulosa) and Gymnothorax pictus (under the protonym Muraena pica).^[3]

Although doubts have been raised about the authorship of this description,^[4] because at the time it was common practice for the thesis supervisor (in this case Carl Peter Thunberg) to write the dissertation,^[4] the initial description of the genus Ophichthus^[5] and the species Echidna nebulosa^[6] and Gymnothorax pictus^[6] remains attributed to Jonas Nicolaus Ahl.

• 1789 – Specimen ichthyologicum de muraena et ophichtho.^[3]
• 1793 – Dissertatio de Benzoe.^[7]

Jonas Nicolaus Ahl was also the author of entomological plates.^[8]