William Elford Leach expressed his general policy for the creation of new names in the introduction to his book on mollusks
                         (published posthumously).

                                            Respecting the names that I have given to what I consider distinct genera, I have always invariably
                                            named the genera, as far as possible, from their essential characters; except only when I have
                                            perceived that the names of the parts constituting a generic distinction might probably be equally
                                            applied to some other genus not yet discovered…Where I have not been enabled to find sufficient
                                            and certain essential characters, I have followed the rule laid down by Fabricius, the first naturalist
                                            who attempted to form a natural arrangement of Insects, - Nomina generica nil significantia omnino
                                            optima;” [Generic names signifying nothing are altogether best] and as far as possible I have selected,
                                            according to the rule laid down by the same author, that “Nomina Barbara nullo modo sunt toleranda”
                                            [barbarous names by no means are tolerable. 1

                         This policy explains to some extent his tendency to name genera after people and his usage of anagrams, neither of which signify
                         anything in descriptive terms. 2 However, even with a written declaration of his nomenclature policies, he did not always follow
                         them. Some examples include frivolous and humorous names such as Labia minor for a species of earwig and Oxyrhynchus deliciosus
                         for a species of fish which had “flesh…of the most exquisite flavor.” By the time Leach was preparing his work on mollusks, he
                         had already created over 600 new names, so he may have had to search for more obscure and less meaningful sources of inspiration
                         to keep to the policy stated above. 3

                               1 Harrison. p. 455
                               2 Ibid. p. 456
                               3 Ibid. p. 456