Buenellus higginsi averages around 5 centimeters or 2 inches. There have been some interesting studies done on these trilobites regarding predation.
The predation scars are typically arcuate and show evidence of repair, with distortion of the healed area
It is a prominent member of the Sirius Passet fauna. If you find one, you find oodles of them in the outcrop. Buenellus higginsi is the only known species in the genus Buenellus as the genus is monotypic.