* Pseudodaphnella alternans (E.A. Smith 1882)

(lFigure 3F)

Pleurotoma alternans Smith, 1882, p. 298 .

Material examined

SCS. 3 specs, CN 78M-111, Weizhou Island, Guangxi Province , 1978.

Syntype of Pleurotoma ( Defrancia ?) alternans, NHMUK 1874.5.26.18; 5.8 × 2.4 mm.

Distribution

SCS; Japan.

Remarks

Pseudodaphnella alternans is similar to P.excellens (Sowerby III, 1913), but differs from the latter by not having an angle on the shoulder, in having less strong axial ribs, and weak lip denticles. This species was not previously reported from China Seas.