Sentence:  But these slight differences will not justify us in considering the West African "chiquera" as a true species distinct from the Indian true "chiquera"; it is only a <WSD>subspecies</WSD> of the latter true species. 
Meaning of the word marked with <WSD> tags:  A taxon at that rank, often indicated with trinomial nomenclature (such as "Felis silvestris silvestris" in zoology and (ver=170729) in botany).