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Sigmoidal and upcurved rostrum;
PETASMA with distomedian projections wing-like, wider than long, their anterior margin often crenulate; distolateral projections short and directed laterally; proximolateral lobes very large, curved dorsally.
THELYCUM with anterior plate concave, rounded anteriorly; posterior plate flat with a pair of anterolateral tooth-like projections, anteromedian margin slightly covex and bearing a transverse row of long setae.
Distinctive characters: Rostrum arried with 8 to 10 dorsal teeth; in females, sigmoidal, toothless on distal 1/3 to 1/2, upcurved and exceeding antennular peduncle; in large r.qales curved downward, unarmed portion absent and reaching middle of second antennular article; both shapes found in young males.
Colour : Pinkish grey
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