Illacme socal sp. nov. Scanning electron micrographs A labrum of ♀ paratype, dorsal view (MPE04625) B mandible of ♂ paratype, lateral view (medially sectioned with left side of head removed), gnathochilarium at top (MPE04971) C posterior-most rings and telson of ♂ holotype, ventral view (MPE04621). Scale bars: 50 µm (A, B); 250 µm (C). Abbreviations: ip, inner palps; ll, lamellae linguales; md, mandible; me, mentum; sh, shelf-like carina projecting dorsally from labrum-epistome margin; st, stipes; to, anteromedial tooth-lined orifice on labrum.

  Part of: Marek PE, Hall CL, Lee C, Bailey J, Berger MC, Kasson MT, Shear W (2023) A new species of Illacme from southern California (Siphonophorida, Siphonorhinidae). ZooKeys 1167: 265-291.