Figure 24
From: Babes in the wood – a unique window into sea scorpion ontogeny
Jaekelopterus howelli chelicera. Reconstruction of the juvenile and adult morphology of the chelicera. A: Juvenile free ramus. B: Adult free ramus. C: Adult articulated fixed and free ramus, agape. D: Adult articulated fixed and free ramus, occluded. Abbreviations: td = terminal denticle of fixed ramus; d1–d3 = principal denticles of the fixed ramus; i1–i5 = intermediate denticles of the fixed ramus; td′ = terminal denticle of the free ramus; d1′–d3′ = principal denticles of the free ramus; i1′–i5′ = intermediate denticles of the free ramus. Scale bars = 10 mm.