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Bell, 1855

Carapace rounded-ovate, strongly convex; surface covered with crisp granules; regions ill-defined, hepatic region with a carina, protruded to form a facet. Frontal margin concave at the middle. Orbit small and circular, with 2 sutures on dorsal margin. Margins of the carapace granulated. Posterior margin with a median sharp spine, directed posteriorly upwards, with an obtusely triangular process at the lateral, lowered in position. Exopodite of third maxilliped and outer side of merus-ischium densely covered with granules, only the inner side of the merus smooth.
Merus of cheliped subcylindrical, dorsal surface with large granules on basal half, with smaller ones on distal half of the ventral surface. Carpus with fine granules on dorsal surface, ventral surface smooth. Palm with proximal broader than distal, granules much closer near its inner and outer margins. Fingers as long as two-thirds of palm. Fingers gaping, decreasing at tip. Ambulatory legs from first to fourth pair decreasing in length. Anterior and posterior margins of all dactyli and posterior margin of carpus of the fourth leg with short hairs.
Abdomen of the female rounded, large; fourth to sixth segment fused; telson ovate. Carapace length of the female 40.2mm, breadth 33.2 mm. (Dai & Yang, 1991)

Type locality: Cebu, Philippines.
Range: Persian Gulf (Alcock, 1896); India - Ganjam coast (Alcock, 1896); Sri Lanka; Andaman Islands (Alcock, 1896); Arakan coast (Alcock, 1896); Mergui Archipelago (Alcock, 1896); Taiwan; China - Guangxi, Hainan Island (Dai & Yang, 1991); Thailand - between Koh Mesan and Koh Chuen (Stephensen, 1945); Nansha Islands (Yang & Dai, 1994); Philippines - Cebu (Bell, 1855); Indonesia - between Loslos and Gebroken Island, Solor Strait, Sumbawa, and Saleh Bay (Ihle, 1918), east coast of Sumbawa and between Loslos and Gebroken Island (Tyndale-Biscoe & George, 1962); Torres Strait (Miers, 1886); Australia - Cape Jaubert (Rathbun, 1924c), Dampier Archipelago and off Onslow (Tyndale-Biscoe & George, 1962), Moreton Bay (Campbell & Stephenson, 1970).

Myra affinis