Tag Archives: erethizon dorsatum

PORCUPINE

Under Construction Mary 2011 PORCUPINE Erethizon dorsatum GUARD HAIR (secondary, as the primary are quills?) Length: up to 110mm (Mayer 1952), 40-60mm (Adorjan and Kolenosky 1969), 101-181mm (Moore et al 1974), 85-100mm (ASM #1)  135mm, quill 35-52mm (ASM #2) 160mm max, around 50mm near belly (ASM #3) Diameter Range: 247-615 microns (Moore et al 1974, […]