Fig. 3
From: Siphonal zone structure in the cuttlebone of Sepia officinalis
Sepia officinalis. Beach-collected cuttlebone; Vale do Lobo, southern Portugal. Ventral side of cuttlebone showing fractured connecting stripes attached to contacting ridges and microglobular structural units near contacting ridges. Scale bar is 500 µm. cr contacting ridge, cs connecting stripe, g globular crystalline units, pi pillar structure