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(Haswell, 1879)

Carapace transversely ovoid, the front not breaking beyond the general outline: its surface everywhere covered with miliary granules, amid which stand out 13 or 14 granule-covered tubercles arranged in five incomplete longitudinal rows. Round the margin of the carapace are 10 granule-covered prominences, the first two of which on either side are mere denticles, while the remaining six are broad spines those at the lateral epibranchial angle on either side being much the longest. The regions of the carapace are ill defined. The inner canthus of the orbit is not prolonged into a spine as it is in Arcania erinaceus and Arcania undecimspinosa.
The chelipeds are slender even for the genus, and in the adult male are just over twice the length of the carapace: the arm alone is elegantly granular: the fingers are a little shorter than the hand. The true legs are slender and perfectly smooth. (Alcock, 1896)

Type locality: Chevert Island, Australia.
Range: Sri Lanka (Alcock, 1896); Japan - Shiono-misaki (Takeda, 1979a); Philippines - west of Semirara Islands (Chen H., 1989); Indonesia - Java, Madura Bay, between Loslos and Gebroken Island, and south of Salawati (Ihle, 1918); Australia - Chevert Island (Haswell, 1879b); 16-84 m.

Ixa pulcherrima