Ahl, J. N., 1789, Specimen ichthyologicum de muraena et ophichtho, quod venia exp. fac. Med. ups. Praeside Carol. Pet. Thunberg, Equite Aurat reg. ord. de Vasa, Medic. Doc. Profess. Med. et Botan. Reg. et Ord. Acad. Caesar. Nat. Curios. Reg. Scient. Londinens. Holmiens. Societ. Scient. Upsal. Patr. Holm. Berol. Nat. Scrut. Lundens. Harlem. Amsteld. Zeland. Nidrosiens. Halens. Nat. Scrut. Medic. Edimburg. et Nat Studios. Ibid. Membro; nec non Acad. Scient. Paris. Monspeliens. Agricult. Paris. Florentin. et Batavin. Ind. Or. Correspond.

Ahl, J. N., 1789, Specimen ichthyologicum de muraena et ophichtho, quod venia exp. fac. Med. ups. Praeside Carol. Pet. Thunberg, Equite Aurat reg. ord. de Vasa, Medic. Doc. Profess. Med. et Botan. Reg. et Ord. Acad. Caesar. Nat. Curios. Reg. Scient. Londinens. Holmiens. Societ. Scient. Upsal. Patr. Holm. Berol. Nat. Scrut. Lundens. Harlem. Amsteld. Zeland. Nidrosiens. Halens. Nat. Scrut. Medic. Edimburg. et Nat Studios. Ibid. Membro; nec non Acad. Scient. Paris. Monspeliens. Agricult. Paris. Florentin. et Batavin. Ind. Or. Correspond., J. Edman