Ptychobela suturalis ( Gray, 1838 )

Li, Bao Quan, Kilburn, Richard N. & Li, Xin Zheng, 2010, Report on Crassispirinae Morrison, 1966 (Mollusca: Neogastropoda: Turridae) from the China Seas, Journal of Natural History 44 (11 - 12), pp. 699-740 : 735

Ptychobela suturalis ( Gray, 1838)

( Figure 6B )

Drillia suturalis Gray, 1838, p 29 . Type loc. unknown.

Ptychobela suturalis: Kilburn 1989, p 190 , figs 5, 6 (holotype), not 7–8 [= P. vexillium ].

Non P. suturalis: Taylor and Wells 1994, p 110 , pl. 1, fig. f, pl. 2, figs c–e.

Material examined

SCS. Three specimens, Hainan Island ; 1 spm , CN 58 -M0440, Haitangtou (Hianan Island), 21 April 1958; 5 spms, Hele Harbour , Hainan Island ; 1 spm, Xincun , Hainan Island .

Measurements

See Table 1.

Distribution

Hainan Island, Taiwan, SCS; Indonesia, Singapore, Malaysia, Philippines, Australia.

Remarks

The species illustrated by Taylor and Wells (1994) as Ptychobela suturalis may be undescribed, as it lacks the strongly arched outer lip, well-defined subsutural cord, truncate siphonal canal and peripheral nodules of true suturalis . Ptychobela suturalis resembles P. vexillium (Habe and Kosuge, 1966) in shell profile and sculpture ( Habe and Kosuge 1966a), but differs from the latter with the weaker spiral ridges and much narrower siphonal canal.

Figures

Figure 6. (A) Syntype of Pleurotoma (Drillia) concolor Smith, 1877, BMNH 1964227, Moluccas; 42.1 × 11.2 mm; (B) Ptychobela suturalis (Hainan Island); (C, D) Ptychobela resticula sp. nov. (holotype, SCS, CN S208B-42, 83 m, 41.5 × 14.3 m); (E) Ptychobela vexillium (SCS, CN N31B-13).