Lophiotoma hastula ( Reeve, 1843 )

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 : 15-17

Lophiotoma hastula ( Reeve, 1843)

(Pl. 1, fig. 7)

Pleurotoma hastula Reeve, 1843 : pl. 17, fig. 139.

Turris (Tomopleura) trypanodes . — Melvill 1917: 148.

Gemmula (Unedogemmula) hastula .— Powell 1964: 272, pl. 211.

Material examined. Beibu Gulf. 2 spms, CN R124B-19, 20 °45’N, 108°00’E, 32 m, fine sand & clay, AT, 14. XI. 1959; 1 spm, CN K2BB-57, 19 °30’N, 107°00’E, 49.6 m, muddy sand, AT, 7. VII. 1960; 1 spm, CN X1 B1B-25, 20 °40’N, 109°30’E, 22 m, fine sand & clay, AT, 23. I. 1962; 1 spm, CN X277B-4, 18 °00’N, 106°30’E, 43 m, coarse & fine sand, AT, 11. X. 1962; 2 spms, CN X243B-10, 19 °40’N, 107°30’E, 48 m, coarse sand & shell debris, AT, 21. VIII. 1962. SCS. 2 spms, CN S128-B18, 22 °15’N, 115°00’E, 42.3 m, sandy mud, AT, 11. XI. 1959; 2 spms, CN S148-B18, 22 °15’N, 115°00’E, 42.3 m, sandy mud, 11. XI. 1959; 4 spms, CN Q188B-38, 20 °30’N, 107°30’E, 34 m, muddy sand, AT, 18. IV. 1960. Nansha Islands. 4 spms, CN SSVIIIB8-16, 7 °24’N, 104°52’E, muddy sand, AT, 9. VII. 1990; 1 spm, CN SSBVIII5-56, 6 °29’N, 106°24’E, 46 m, mudy sand, 8. VI. 1990.

Measurements (mm).

Distribution. Beibu Gulf, South China Sea, Nansha Islands; Persian Gulf, Arabian Sea. This is a common species in the South China Sea.

Remarks. Reeve (1843) provided a brief description and a hand-painting figure of the holotype. More recently, Powell (1964) provided more detailed and distinct descriptions and a figure of the holotype. Their figures are different to a certain extent on the shell profile. The present specimens agree well with the descriptions and figure of the holotype provided by Powell (1964), and do not vary in shell features.

* Lophiotoma ina ( MacNeil, 1960) n. comb. (Pl. 1, fig. 8)

Unedogemmula ina MacNeil, 1960: 102 , pl. 5, fig. 7.

Gemmula (Unedogemmula) ina . — Powell 1964: 273, pl. 210, fig. 3.

Length Width Aperture W/L A/L 35.0 10.8 19.3 0.31 0.55 Diagnosis. Shell medium size, 35.0 mm in height; spire high, pagodiform, with prominent peripheral angle, shoulder straight. Color grayish white.

Distribution. South China Sea; Okinawa (type locality, Japan). This species was previously collected only from the type locality Okinawa, Japan, in Miocene, as a fossil species.

Remarks. Taylor et al. (1993) treated with the genus Unedogemmula as a synonym of Lophiotoma . We followed their opinion and transfer this species to the genus Lophiotoma from Gemmula as a new combination. The present specimen agrees with the previous descriptions and illustrations.

Lophiotoma indica indica (R ȍ ding, 1798) (Pl. 3, fig. 7)

Turris indica Röding, 1798: 124 , pl. 145, figs. 1345, 1346; Hedley 1922: 215.

Pleurotoma marnorata .— Lamarck 1822: 95 (non 1816); Kiener 1839 –40: 9, pl. 6, fig. 1, pl. 7, fig. 2; Reeve 1843, pl. 3, figs. 21a, b.

Lophiotoma (Lophioturris) indica . — Powell 1964: 311, color pl. 175, figs. 2, 39, 16 & pl. 242; Springsteen & Leobrera 1986: 266, pl. 76, fig. 10.

Lophiotoma indica indica .— Olivera, 2004a: 4, fig. 1A.

Material examined. Beibu Gulf. 1 spm, CN X34 B-55, 22 °15’N, 115°00’E, mud, 69 m, AT, 10. XI. 1959. Nansha Islands. 1 spm, CN SSVIIIB8-16, 7 °24’N, 104°52’E, muddy sand, 44 m, AT, 9. V. 1990; 4 spms, CN SBVII 5-53, 6 °29’N, 106°24’E, muddy sand, 46 m, 8. VI. 1990.

Measurements (mm).

Distribution. Beibu Gulf, Nansha Islands; Ceylon, Japan, Philippines, Austria, and Fiji. Remarks. Olivera (2004a) recognized two subspecies of Lophiotoma indica : the typical subspecies L. i. indica ( Röding, 1798) is distributed in New Guinea to the Philippines and Japan, L. i. queenslandica Olivera, 2004a is distributed in the southeastern edge of the range from Queensland, Australia to Fiji. Our specimens agree well with the typical subspecies.