taxonID	type	description	language	source
03EEA961FFEBF151E556D2DC6B37FBF1.taxon	type_taxon	Type species: Trivellona excelsa Iredale, 1931 by monotypy.	en	Fehse, Dirk, Grego, Jozef (2012): Contribution to the knowledge of Triviidae XXII. New species in the genus TriƲellona Iredale, 1931. Spixiana 35 (1): 1-8, DOI: 10.5281/zenodo.16851088
03EEA961FFEBF151E556D2DC6B37FBF1.taxon	description	Detailed descriptions of the genus are given in Fehse & Grego (2004, 2009).	en	Fehse, Dirk, Grego, Jozef (2012): Contribution to the knowledge of Triviidae XXII. New species in the genus TriƲellona Iredale, 1931. Spixiana 35 (1): 1-8, DOI: 10.5281/zenodo.16851088
03EEA961FFEBF153E4BDD5B46880FC1B.taxon	description	Figs 2 - 6 Trivellona sp. indet. C – Fehse & Grego 2004, 2009: pl. 15, fig. 61.	en	Fehse, Dirk, Grego, Jozef (2012): Contribution to the knowledge of Triviidae XXII. New species in the genus TriƲellona Iredale, 1931. Spixiana 35 (1): 1-8, DOI: 10.5281/zenodo.16851088
03EEA961FFEBF153E4BDD5B46880FC1B.taxon	description	Types. Empty shells were dredged at Aliguay Island, near Dipolog, Mindanao, Philippines in depths of 150 m in rubble. Holotype: ZSM 20100398. – Paratypes: No. 1: DFB 7850 - 1; No. 2: DFB 7850 - 2; No. 3: DFB 7850 - 3; No. 4: DFB 7850 - 4; No. 5: DFB 7850 - 5; No. 6: MBI T 0189; No. 7: JGS T 0190; MBI T 0199. All material comprises empty shells from type locality that were obtained from different reliable sources. Description Shell medium sized (see Table 1), lightweight, somewhat fragile, globose. Spire slightly elevated, covered with terminal ribs. Body whorl somewhat pyriform, globose, rounded, approximately 90 % of total shell height; anterior terminal produced, tip indented; posterior terminal slightly so. Anal canal indented. Dorsum evenly rounded, highly elevated, completely covered by very fine, close-set ribs with a slight mid-dorsal depression; occasionally ribs bisected mid-dorsally. Ventrum convex, with terminal collars straight. Aperture relatively narrow, curved especially towards the canals. Labrum narrow, straight at its mid-portion, curved anteriorly and posteriorly, posteriorly projecting, roundly keeled on ventrum, anteriorly flattened, bearing on its inner margin fine denticles. Outer labral margin angularly callused with a sharp ridge on shoulder and with posterior-most labral denticles projected. Siphonal and anal canals following shell profile; bordered adapically by a weak and abapically by a large ventral side wall. Columella narrow, straight, tapering steeply inwards, without a carinal ridge. Parietal lip roundly callused, slightly projected, anteriorly ridged, bearing fine ribs, which become even finer, slightly obscured onto the columella. Fossula short, broadly concave, not clearly delimited from the rest of the columella. Inner fossular edge slightly protruding. Shell colour white with terminal collars pale red-brown. No information available on soft parts and radula. Variation. The available shells are very uniform in their appearance (Table 1). Their inflation varies a bit. The inner fossular margin is more or less protruded. The number of dorsal ribs varies between 36 and 44, of labral denticles between 25 and 29, of parietal ribs between 23 and 27 and of terminal ribs that cover the spire between 5 and 7.	en	Fehse, Dirk, Grego, Jozef (2012): Contribution to the knowledge of Triviidae XXII. New species in the genus TriƲellona Iredale, 1931. Spixiana 35 (1): 1-8, DOI: 10.5281/zenodo.16851088
03EEA961FFEBF153E4BDD5B46880FC1B.taxon	etymology	Etymology. From the Latin adjective ‘ pulcher’, meaning beautiful.	en	Fehse, Dirk, Grego, Jozef (2012): Contribution to the knowledge of Triviidae XXII. New species in the genus TriƲellona Iredale, 1931. Spixiana 35 (1): 1-8, DOI: 10.5281/zenodo.16851088
03EEA961FFEBF153E4BDD5B46880FC1B.taxon	distribution	Distribution. Only known from the type locality (Fig. 1).	en	Fehse, Dirk, Grego, Jozef (2012): Contribution to the knowledge of Triviidae XXII. New species in the genus TriƲellona Iredale, 1931. Spixiana 35 (1): 1-8, DOI: 10.5281/zenodo.16851088
03EEA961FFEEF155E4F3D4416B1BFC17.taxon	description	Fig. 7	en	Fehse, Dirk, Grego, Jozef (2012): Contribution to the knowledge of Triviidae XXII. New species in the genus TriƲellona Iredale, 1931. Spixiana 35 (1): 1-8, DOI: 10.5281/zenodo.16851088
03EEA961FFEEF155E4F3D4416B1BFC17.taxon	materials_examined	Types. Lectotype: “ East of Sailus-Besar, Paternoster Islands, Netherlands East Indies; in up to 36 metres of water; coral and Lithothamnion bottom ” (Schepman 1909: 140). – Paralectotypes: “ Stat. 095. Siboga Expedition 1899 - 1900, Philippines, Sulu Sea; 5 ° 43.5 ' N, 119 ° 40 ' E, stony bottom, dredged at 522 m; 26. vi. 1899. ” (Schepman 1909: 140), Naturalis Leiden, RMNH, Mol. 97289.	en	Fehse, Dirk, Grego, Jozef (2012): Contribution to the knowledge of Triviidae XXII. New species in the genus TriƲellona Iredale, 1931. Spixiana 35 (1): 1-8, DOI: 10.5281/zenodo.16851088
03EEA961FFEEF155E4F3D4416B1BFC17.taxon	discussion	Remarks Schepman (1909: 140) already noted differences among his type specimens of Trivellona sibogae when he wrote, “ Two specimens from Stat. 95 are still smaller, being only 7 1 / 2 Mill. in length, ... the ribs are slightly coarser, the teeth of the right margin less numerous (15 and 17), ... I prefer to keep them under one name with the variety [minor], instead of describing a new species ... ”. The name ‘ Trivia minor’, however, was a preliminary homonym being preoccupied by Trivia pulex var. minor Dautzenberg, 1889. Schilder (1941: 74) renamed Schepman’ s ‘ Trivia minor’ as Pseudotrivia schepmani without examining the type specimens. We confirmed Schepman’ s observations (Fehse & Grego 2004: 30). The lectotype (designated by Cate 1979) of Trivellona schepmani was re-described in Fehse & Grego (2004). Additional specimens of T. sibogae and T. schepmani were identified and studied especially from off Aliguay Island near Dipolog, NE Mindanao, Philippines (Fehse & Grego, 2004). Schepman’ s paralectotypes 1 to 3 (ZMA 03.09. 027 and ZMA 03.09.028) of Trivia sibogae Schepman, 1909 were provisionally assigned to Schilder’ s T. schepmani. In 2004 we already observed the inflated shells of the paralectotypes, but we explained them as intraspecific. Also now we could base our research on the lectotype of T. schepmani only on the photos in Cate’ s review of the Triviidae (1979: pl. 9, figs 35, 35 a), because the lectotype is still not returned since 2001 (pers. comm. with H. Dekker and R. Moolenbeek, March 2011). The examined paralectotypes 1 to 3 of T. schepmani are consistent with the Chinese shells that are studied herein (see below). Since 2004, several dozen further specimens of T. schepmani could be studied and the distinguishing features are persistent (see below) to the new species. Therefore, the new taxon is described in this study as Trivellona enricoschwabei spec. nov.	en	Fehse, Dirk, Grego, Jozef (2012): Contribution to the knowledge of Triviidae XXII. New species in the genus TriƲellona Iredale, 1931. Spixiana 35 (1): 1-8, DOI: 10.5281/zenodo.16851088
03EEA961FFEFF157E6B6D1646845FC3D.taxon	description	Figs 9 - 12	en	Fehse, Dirk, Grego, Jozef (2012): Contribution to the knowledge of Triviidae XXII. New species in the genus TriƲellona Iredale, 1931. Spixiana 35 (1): 1-8, DOI: 10.5281/zenodo.16851088
03EEA961FFEFF157E6B6D1646845FC3D.taxon	materials_examined	Types. Holotype: ZSM 20110214, 26 ° 15 ' N 124 ° 42 ' E, off Xiamen (prov. Fujinan), near Chilwei Island, E China Sea; trawled at 360 m depth. – Paratypes: Nos. 1 - 2: “ Stat. 95, 5 ° 43.5 ' N., 119 ° 40 ' E, Sulu Sea, 522 M, Stony bottom ” (Schepman 1909: 140), ZMA 03.09.027; No. 3: “ East of Sailus-Besar, Paternoster Islands, Netherlands East Indies; in up to 36 metres of water; coral and Lithothamnion bottom ” (Schepman 1909: 140), ZMA 03.09.28; Nos. 4 - 5: Off Xiamen, near Chilwei Island, E China Sea; trawled at 100 - 130 m; Nos. 6 - 8: Off Xiamen, near Chilwei Island, E China Sea; dredged at 170 m on gravel and sand; Nos. 9 - 13: Off Xiamen, near Chilwei Island, E China Sea; trawled at 360 m. All material comprises empty shells from type locality that were obtained from different reliable sources.	en	Fehse, Dirk, Grego, Jozef (2012): Contribution to the knowledge of Triviidae XXII. New species in the genus TriƲellona Iredale, 1931. Spixiana 35 (1): 1-8, DOI: 10.5281/zenodo.16851088
03EEA961FFEFF157E6B6D1646845FC3D.taxon	description	Description Shell small sized (see Table 2), lightweight, somewhat fragile, globose. Spire covered by terminal ribs. Body whorl somewhat semi-circular, globose, rounded, approximately 90 % of total shell height; anterior terminal produced, tip blunt; posterior terminal slightly so. Dorsum evenly rounded, not much elevated, completely covered with coarse, close-set ribs. Ventrum convex, with terminal collars straight. Aperture narrow, curved especially towards the canals. Labrum narrow, straight at its mid-portion, curved anteriorly and posteriorly, roundly keeled on ventrum, bearing on its inner margin denticles. Outer labral margin slightly roundly callused. Siphonal and anal canals following shell profile; bordered adapically and abapically by weak ventral side walls. Columella narrow, straight, tapering steeply inwards, without a carinal ridge. Parietal lip roundly callused, slightly projected, bearing ribs, which become finer onto the columella. Fossula short, concave, not clearly delimited from the rest of the columella. Inner fossular edge slightly protruding. Shell colour overall white. No information available on soft parts and radula. Variation. The length varies between 5.6 and 7.7 mm (see Table 2). The posterior terminal is more or less produced. The terminal collars can be slightly recurved. The number of dorsal ribs varies between 18 and 26, of labral denticles between 17 and 21, of parietal ribs between 14 and 18, and of terminal ribs that cover the spire between 2 and 3.	en	Fehse, Dirk, Grego, Jozef (2012): Contribution to the knowledge of Triviidae XXII. New species in the genus TriƲellona Iredale, 1931. Spixiana 35 (1): 1-8, DOI: 10.5281/zenodo.16851088
03EEA961FFEFF157E6B6D1646845FC3D.taxon	etymology	Etymology. The name of the species honours Mr. Enrico Schwabe from ZSM.	en	Fehse, Dirk, Grego, Jozef (2012): Contribution to the knowledge of Triviidae XXII. New species in the genus TriƲellona Iredale, 1931. Spixiana 35 (1): 1-8, DOI: 10.5281/zenodo.16851088
03EEA961FFEFF157E6B6D1646845FC3D.taxon	distribution	Distribution. From Chilwei Island, E China Sea (type locality) in the north to the Sulu Sea, Philippines and Java Sea in the south in depths between 100 and 360 m on gravel and sand (Fig. 8).	en	Fehse, Dirk, Grego, Jozef (2012): Contribution to the knowledge of Triviidae XXII. New species in the genus TriƲellona Iredale, 1931. Spixiana 35 (1): 1-8, DOI: 10.5281/zenodo.16851088
