Few knobs are found on the dorsal surface of the humeral spine in the type-series, but three blunt spines are
present on the two smaller specimens and absent in two larger specimens. Ho et al.(2011) mentioned that
“although the humeral spines are quite variable in most species of Lophiodes, ranging from simple to multifid, all
specimens in the type series of L. iwamotoi have a simple humeral spine with few low knobs on it.” We confirm
that L. iwamotoihas a simple humeral spine, especially in larger specimens. Arrangement and form of other spines
on the head bones in the New Caledonian material are as recorded in the originally described specimens of the
species.