Krohnia Quatrefages 1865

Genus Krohnia Quatrefages, 1865 Type species: Krohnia lepidota (Krohn, 1845) Diagnosis. Body moderately elongate, transparent. Prostomium extending in front of eyes or greatly reduced. Median antenna present. Eyes large, directed obliquely forward and upward. Margin of proboscis with papillae, without lateral horns. Tentacular cirri according to the formula. Segment 4 and all subsequent ones with fully developed parapodia having foliaceous dorsal and ventral cirri and chaetigerous lobe with one cirriform appendage. Chaetae all simple; mainly capillaries, acicular chaetae at least in anterior parapodia.