Description of Elisesione imajimai sp. nov. From Japan (Annelida: Hesionidae) and A Redescription of E. problematica (Wesenberg-Lund, 1950) and Its Confirmation Within Hesionini Author Jimi, Naoto Author Eibye-Jacobsen, Danny Author Salazar-Vallejo, Sergio I. text Zoological Studies 2018 2018-02-05 57 8 1 9 journal article 53757 10.6620/ZS.2018.57-08 b365601c-edda-47e6-a2a8-702ec929f881 8055762 Key to species of the genus Elisesione (modified from Salazar-Vallejo 2016 ) 1 Acicular lobe single; parapodia with dorsal ceratophores about twice longer than wide; neurochaetal blades with guards ............................................................................... 2 - Acicular lobe double; parapodia with dorsal ceratophores 4-5 times longer than wide; neurochaetal blades 1-3 times longer than wide, without guards (palps about 2/3 as long as antennae) ................. E . mezianei Salazar-Vallejo, 2016 2 Acicula black in ethanol; palps as long as antennae; ventral cirri hardly reach tips of neurochaetal lobes ........................ ........................... E . problematica ( Wesenberg-Lund, 1950 ) - Acicula pale brownish in ethanol; palps 1/2-4/5 times as long as antennae; ventral cirri surpass neurochaetal lobe tips ...................................... E . imajimai sp. nov. This study