Plesionika semilaevis Bate, 1888

Li, Xinzheng & Komai, Tomoyuki, 2003, Pandaloid Shrimps From The Northern South China Sea, With Description Of A New Species Of Plesionika (Crustacea: Decapoda: Caridea), Raffles Bulletin of Zoology 51 (2), pp. 257-275 : 268

Plesionika semilaevis Bate, 1888

Plesionika semilaevis Bate, 1888: 644 , pl. 68, fig. 3 [type locality (restricted by lectotype selection by Chace, 1985): Moro Gulf east of Basilan Strait, Philippines]; Chace, 1985: 113, figs 51- 54; Ohtomi & Hayashi, 1995: 1035, fig. 1; Chan & Crosnier, 1997: 213; Liu & Zhong, 1994: 560.

Material examined. – 24 males (cl 12.9-19.9 mm), 9 females (cl 12.4-20.1 mm), 7 ovig. females (cl 16.3-21.3 mm) ( IOCAS) , 1 male, 1 female ( ZRC), CN L33 B-44, 19 00’N, 113 00’E, 465 m, sand, AT, coll. H. Li, 17 Feb.1959 .

Distribution. – Philippines, Indonesia, South and East China seas, Japan; at depths of 176- 700 m.

Remarks. – As Chan & Crosnier (1997) suggested, the taxonomy of P. martia A. Milne Edwards, 1883 species group, to which this species belongs, is still unsettled. The present specimens are identified with P. semilaevis on account of the following features: the overall body size is relatively small (the average postorbital carapace length of the seven ovigerous females is 19.3 mm); the posterior margin of the orbit is notably inclined posterodorsal; the dactylus of the third pereopod is relatively long (about 0.30 length of the propodus); and the exopod of the third pleopod relatively short (usually less than 0.75 of the carapace length).