FIG. 1 in King crabs up-close: ontogenetic changes in ornamentation in the family Lithodidae (Crustacea, Decapoda, Anomura), with a focus on the genus Paralomis

FIG. 1. — Terminology for describing carapace ornamentation in species of Paralomis White, 1856: spines (A) are structures which measure more than 1.5 times as high as wide at the base; tubercles (B-E) are any structures measuring less than 1.5 times high as wide at the base; within this system, tubercles can be conical (B), rounded (C), pedunculate (D) or flattened (E), and have regular (smooth) or irregular surfaces. Conical tubercles differ from rounded tubercles in that they taper towards an acute apex. Flattened tubercles are lower than 0.2 times as high as wide at the base. Numbers represent ratios.