Paradexamine setigera Hirayama, 1984

Azman, B. A. R. & Othman, B. H. R., 2013, Shallow water marine gammaridean amphipods of Pulau Tioman, Malaysia, with the description of a new species, ZooKeys 335, pp. 1-31 : 7-9

Paradexamine setigera Hirayama, 1984 Figure 5

Paradexamine setigera Synonymy: Hirayama, 1984: 225-230; Hirayama 1986: 488.

Material.

24 specimens, TIO 10, Kampung Tekek, Pulau Tioman, 2 2°49'11"N, 104°9'32"E, washing mix species of macroalgae, Azman, B.A.R., Josim, J.J., 11 November 1997, UKM I.D. 4891-4898.

Remarks.

The Malaysian specimens differ from those described from the waters of Japan only by the lack of the accessory setae of the mandible. At present, this seems inadequate for subspecific distinction due to the enormous resemblance of other char acters shared between them. Even though Hirayama (1984) mentioned the closely related Paradexamine micronesica , italso lacks the accessory setae of the mandible. Furthermore, the Pulau Tioman specimens show several differences from Paradexamine micronesica by having; 1) slenderer basis of pereopod 7; 2) several robust setae on dorsal surface of telson; 3) shorter carpus of male gnathopod 2.