Complex sentence: John Alexander Smith scientifically described the pincushion ray in 1863, in "Proceedings of the Royal Physical Society of Edinburgh"; he named it "ukpam" as that is the local indigenous name for freshwater stingrays.
Split into simpler sentences: John Alexander Smith scientifically described the pincushion ray in 1863, in "Proceedings of the Royal Physical Society of Edinburgh". He named it "ukpam", as that is the local indigenous name for freshwater stingrays.