Sibogasyrinx lancea Kantor & Fedosov & Puillandre 2025, comb. nov.

Sibogasyrinx lancea (Y.-C. Lee, 2001) comb. nov. Fig. 35H–I Leucosyrinx lancea Y.-C. Lee, 2001: 8, fig. 2a–d. Type material Holotype TAIWAN • off Pratas I.; depth 430–610 m; dredged by shrimp trawlers; NMNS-3704001. Material examined (sequenced) PHILIPPINES • 1 lv; Luzon I.; 15°53′ N, 121°54′ E; depth 518–538 m; AURORA 2007, stn CP2750; MNHN-IM-2009-13465. Remarks The species is characterized by a subsutural row of rounded knobs. This is not found in any species of Leucosyrinx, but is, conversely, present in all species of Sibogasyrinx and Comispira. Moreover, a very similar specimen (MNHN-IM-2009-13465 – Fig. 35E), collected off Luzon, Philippines, at similar depths (518–538 m) was recently sequenced and a partial cox 1 sequence confidently places it in Sibogasyrinx. Therefore, we transfer it to Sibogasyrinx. Distribution Taiwan to Philippines, 430– 518 m.