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Branchiostegal spine absent
PETASMA with distolateral lobes spout-like and as long as distomedian ones.
THELYCUM anterior plate of thelycum semicircular, articulating to intermediate plate and with a median groove which continues on intermediate plate; the latter is broad, quadrate and continuous to posterior sternal plate.
Distinctive characters : Body hairless, Rostrum reaching or exceeding distal margin of basal antennular segment, slight-Ly curved downward and armed with 6 or 7 dorsal teeth, longitudinal and transverse sutures present.
Colour : pinkish to pale whitish
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