I'm not sure this is the right forum to post to, but as a beginner I'm only allowed to post here, so here I go.
SWIM got 6 nice plants on Easter and would like to know which is Pachanoi and which is Peruvianus. Each cactus has been photographed from the side and from above. Can someone more knowledgeable help?
The order of photos is as follows.
Plant #1 from the side
Plant #1 from the top
Plant #2 from the side
Plant #2 from the top
Plant #3 from the side
Plant #3 from the top
...
Plant #6 from the side
Plant #6 from the top
globos attached the following image(s):

1_side_IMG_5799xs.jpg
(37kb) downloaded 39 time(s).
1_top_IMG_5800xs.jpg
(41kb) downloaded 39 time(s).
2_side_IMG_5801xs.jpg
(44kb) downloaded 39 time(s).
2_top_IMG_5802xs.jpg
(32kb) downloaded 39 time(s).
3_side_IMG_5803xs.jpg
(41kb) downloaded 40 time(s).
3_top_IMG_5805xs.jpg
(40kb) downloaded 39 time(s).
4_side_IMG_5806xs.jpg
(35kb) downloaded 39 time(s).
4_top_IMG_5807xs.jpg
(32kb) downloaded 40 time(s).
5_side_IMG_5809xs.jpg
(41kb) downloaded 41 time(s).
5_top_IMG_5810xs.jpg
(35kb) downloaded 44 time(s).
6_side_IMG_5814xs.jpg
(60kb) downloaded 45 time(s).
6_top_IMG_5815xs.jpg
(35kb) downloaded 45 time(s).