Definitions

Long, thin, ciliated lobe arising dorsally from proximomesial border of first antennular segment and extending anteriorly; found in Penaeidae.
(syn. dorsal eye brush) [Williams, 1984]
Process arising from mesial margin of first article of antennule (Dendrobranchiata). [Poore, 2004]
Scale implanted on inner margin of basal segment of antennular peduncle in Penaeidae. [Moore and McCormick, 1969]
Scale implanted on inner margin of basal segment of antennular peduncle. [McLaughlin, 1980]
Variable in shape, thin, sometimes scalelike process arising from the mesial base of the first antennular segment, and extending distally (Fig. 3B). [Perez Farfante and Kensley, 1997]
(Taxon-specific: Order Decapoda) In shrimp-like (natantian) decapod, long, lobe- or scale-like projection from inner (medial) margin of first antennular segment.
(syn. dorsal eye brush) [Stachowitsch, 1992]