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Adrostral crest and groove extending as far as or just beyond epigastric tooth
Low rostral crest
Gastroorbital crest extending over posterior 2/3 of distance between hepatic spine and orbital margin
PETASMA with distomedian projections overhanging distal margin of costae; ventral costae unarmed; outer surface of lateral lobes with a few rows of minute tubercles.
THELYCUM with lateral plates, theie median margins forming tumid lips beset with papillae on their inner surface; anterior process rounded distally; posterior process ill-calcified, almost completely inserted between lateral plates.
Distinctive characters : Carapace hairless. Rostrum slender and long, with 7 to 9 teeth on dorsal, and 4 to 6 teeth on ventral margin; blade of rostrum becoming moderately high in large specimens.
Colour : pale white
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