Gemmula

Li, Baoquan & Li, Xinzheng, 2008, Report on the turrid genera Gemmula, Lophiotoma and Ptychosyrinx (Gastropoda: Turridae: Turrinae) from the China seas, Zootaxa 1778, pp. 1-25 : 10-12

Gemmula sp.

(Pl. 2, figs. 5-6)

Material examined. Yellow Sea. 2 spms, CN Y 351B-7, 34 °00’N, 123°30’E, silty mud, 66 m, AT, 16. X. 1959.

Measurements (mm).

CN Length Width Aperture W/L A/L Y 351B-7-1 19.2 6.3 9.4 0.33 0.49 Y 351B-7-2 19.5 6.3 9.5 0.32 0.49

Distribution. Yellow Sea; Japan. Not previously recorded from Yellow Sea.

Remarks. The two specimens collected from the Yellow Sea in 1959 were light reddish brown in colour. Because they have gemmules on the peripheral carina, especially on the early whorls, we assigned them to genus Gemmula . Unfortunately, our specimens shell surfaces are worn to a certain extent, and they lack distinct characters to be identified to any species of the genus.

PLATE 2. Species of Subfamily Turrinae , figs. 1-2. Gemmula rarimaculata (CN X228B-25); 3. Gemmula (Pinguigemmula) thielei (CN SSBV22-7); 4. Gemmula pseudogranosa (CN V469B-41); 5-6. Gemmula sp. (CN Y 351B-7); 7. Ptychosyrinx timorensis (CN KY9B-1); 8. Lophiotoma cingulifera cingulifera (CN Xincun-1)

* Gemmula rarimaculata Kuroda and Oyama, 1971 (pl. 2, figs. 1–2)

Gemmula (Gemmula) rarimaculata Kuroda and Oyama, 1971: 222 , pl. 57, fig. 9, pl. 111, fig. 6; Kosuge, 1988: 120, pl. 47, fig. 3.

Material examined. Beibu Gulf. 1 spm, CN X228B-25, 17 °30’N, 107°00’E, medium sand, 52 m, AT, 17. VIII. 1962. SCS. 1 spm, CN K33B-17, 19 °30’N, 113°00’E, muddy fine sand, 180 m, AT, 21. IV. 1959; 1 spm, CN LX56B-20, 21 °15’N, 100°00’E, silty mud, 18 m, AT, 1. VII. 1959; 2 spms, CN S219B-50, 21 °30’N, 115°30’E, mudy sand, 115 m, AT, 13. IV. 1960; 1 spm, CN K164B-31, 20 °00’N, 113°30’E, muddy sand, 129 m, AT, 9. IV. 1960.

Measurements (mm).

Distribution. Beibu Gulf, South China Sea; Fiji, Queensland, Philippines. Not reported previously from China seas.

Remarks. The six specimens are covered by the descriptions of the holotype reported by Kuroda and Oyama (1971), although they variable in shell form and sculpture. In the six specimens, three have a slightly longer siphonal canal, and a more convex shell outline than the holotype.