Fig. 9

Hoplitaspis hiawathai, specimens preserving morphological details of the prosomal appendages and buckler. a UWGM 1876 (paratype), prosomal appendages and buckler. Appendages II–VI are preserved almost in their entirety, while the buckler ventral plate also preserves the posterior regions of a pair of opercula. Details of the coxae, which preserve ancillary spines along their margin, are shown in the upper expanded box while details of the gap between the opercula are shown in the lower box. b UWGM 2281, small specimen preserving the full opisthosoma and prosomal appendage complement, lacking only the dorsal prosomal shield. c UWGM 2070, opisthosoma lacking telson. d UWGM 1949, small specimen preserving a complete set of prosomal appendages in dorsal view lacking prosomal shield. II–V = appendages II–V, VI-1–VI-8 = appendage VI podomeres 1–8. Scale bars = 10 mm, with the exception of the expanded boxes of A and B, where the scale bars = 1 mm