From these remarks it will be seen that I look at the term species as one arbitrarily given, for the sake of convenience, to a set of individuals closely resembling each other, and that it does not essentially differ from the term variety, which is given to less distinct and more fluctuating forms.
Oharrotatik ikus daitekeenez, espezie berba, banako antz-antzekoen talde bati, komenientziagatik, arbitrarioki emanikotzat hartzen dut, eta forma ez hain bereizi eta bai gorabeharatsuagoa dutenei aplikatzen zaien aldaki berbatik ez da funtsean ezberdina.