Page "Ichthyology" Paragraph 10

Linnaeus posthumously published Artedi's manuscripts as Ichthyologia, sive Opera Omnia de Piscibus ( 1738 ).

His refinement of taxonomy was culminated subsequent to the development of the binomial nomenclature which is in use by contemporary ichthyologists.

Furthermore, he revised the orders introduced by Artedi, placing significance on pelvic fins.

Fish lacking this appendage were placed within the order Apodes ; fish containing abdominal, thoracic, or jugular pelvic fins were termed Abdominales, Thoracici, and Jugulares respectively.

However, these alterations were not grounded within the evolutionary theory.

Therefore, it would take over a century until Charles Darwin would provide the intellectual foundation from which we would be permitted to perceive that the degree of similarity in taxonomic features was a consequence of phylogenetic relationship.