Rambucsabillbul
Lil-Rokslider
It appears to me with the two lines in position 3 and 4 from the Lamb tip...... You are counting a False Annuli.Here's my arm-chair assessment. I was comfy with 8 because in the field I count those tight clusters as one to be cautious. zoom inspection in photoshop I could clearly see the 9 rings with the lab tips still intact on both sides.
View attachment 513907
Just my opinion
The rings should either get closer together or further apart to the next true Annuli depending on the direction your counting but not back and forth.