"Siphopteron quadrispinosum seems to be a very variable species of Siphopteron. One characteristic feature is the dark line that runs across the parapodia.
Many experts differ in their opinions of what constitutes different species because they do not know (nobody does!) the limits of variability of individual species. It is best to leave things as they are on Nudi Pixel for now until things are better understood."
Comment from Richard Willan
Siphopteron quadrispinosum seems to be a very variable species of Siphopteron. One characteristic feature is the dark line that runs across the parapodia.
Many experts differ in their opinions of what constitutes different species because they do not know (nobody does!) the limits of variability of individual species. It is best to leave things as they are on Nudi Pixel for now until things are better understood.