Fig. 2
From: Endobacterial morphotypes in nudibranch cerata tips: a SEM analysis
Aggregate (Ø ca. 23 μm) with envelope (arrow) originating from cerata of nudibranch Coryphella brownii containing streptococcus-like bacteria (Ø ca. 0.5–2.5 µm) with smooth surface. Thread may derive from fired cnidocyst (arrow)