Diplommatina sulcicollis Möllendorff, 1897

Hausdorf, Bernhard, 2017, Revision of the Diplommatinidae (Gastropoda: Cyclophoroidea) from Java, Zootaxa 4312 (2), pp. 201-245 : 206-207

Diplommatina sulcicollis Möllendorff, 1897

( Figs 13 , 20 ; Table 1)

Diplommatina (Pseudopalaina) sulcicollis Möllendorff, 1897: 94 (JaVa) . Kobelt 1902: 455. RenSch 1934: 745. Diplommatina sulcicollis — Van Benthem Jutting 1948: 601, fig. 57–59.

Pseudopalaina sulcicollis — Zilch 1953: 40, pl. 13 fig. 200.

Diplommatina javana —Heryanto 2011: 52, fig. (not Möllendorff 1897).

Diagnosis. Diplommatina sulcicollis is characterized by a closely ribbed, sinistral shell with a spiral depression on the last whorl and a fine spiral palatal fold close to the suture ventrolaterally right inside the last whorl.

Shell ( Fig. 20 ; Table 1). Sinistral; ovoid with conical early whorls and a narrowed last whorl; with 5–5.25 whorls separated by a deep suture; protoconch smooth; teleoconch with fine oblique ribs (88–113 on the penultimate whorl; fewer on the last whorl); without discernible spiral striae between the ribs; corneous; subtranslucent; last whorl with a spiral depression and with a ventral constriction; aperture rounded, angular at the transition from columellar to basal side; upper insertion of the peristome distinctly ascending towards aperture; insertions of the peristome connected by a distinct callus; peristome expanded, thickened, doubled; aperture with a prominent columellar lamella; with a parietal lamella ventrolaterally right inside the last whorl; with a fine spiral palatal fold close to the suture ventrolaterally right inside the last whorl, and with a radial palatal fold ventrally; umbilicus closed; operculum thin, corneous, circular, paucispiral. Shell height 2.5–2.85 mm, shell diameter 1.5– 1.65 mm.

Habitat. In leaf litter in forests on volcanic soils at 1500–3000 m a.s.l.

Type material. Indonesia, Java (lectotype of D. sulcicollis [designated by Zilch 1953] SMF 105187; paralectotypes of D. sulcicollis SMF 105188/9; ZMB 47701/3).

Other material. Indonesia, Java, West Java: Cianjur, Mt. Pangrango, above Cibodas, 2400 m a.s.l., 6°46'S 106°58'E (ZMA 68470/105, 68471/60, vouchers to van Benthem Jutting 1948); Cianjur, Mt. Pangrango, 3000 m a.s.l., 6°46'S 106°58'E (SMF 105191/6, vouchers to Zilch 1953); Cianjur, Kandang Badak, saddle between Mt. Gede and Mt. Pangrango, 2400 m a.s.l., 6°47'S 106°58'E (SMF 202851/6; ZMA 68469/100, vouchers to van Benthem Jutting 1948; ZMB 97415/3); Cianjur, Kandang Badak, 1800 m a.s.l., 6°45'S 106°59'E (MZB 4060/1); Cianjur, Mt. Gede, along the road between Cibeureum and Kandang Badak, 2000 m a.s.l., 6°46'S 106°59'E (ZMA 68472/7, vouchers to van Benthem Jutting 1948); Cianjur, Mt. Gede, 2300 m a.s.l., 6°46'S 106°59'E (SMF 105190/ 8, vouchers to Zilch 1953); Cianjur, slope of Mt. Gede, 2800 m a.s.l., 6°48'S 106°59'E (ZMA 68473/30, vouchers to van Benthem Jutting 1948); Cianjur, Mt. Gede, 1500 m a.s.l., 6°45'S 107°00'E (SMF 105189/7, vouchers to Zilch 1953; SMF 105193/2); Cianjur, Mt. Gede, 2700 m a.s.l., 6°47'S 107°00'E (van Benthem Jutting 1948).—East Java: Magetan, Cemorosewu near Sarangan, 1875 m a.s.l., 7°40'S 111°11'E ( Rensch 1934).

Distribution ( Fig. 13 ). Diplommatina sulcicollis is endemic to Java and has mainly been found in the Mt. Gede-Mt. Pangrango range in West Java. However, there is also one record from Mt. Lawu in East Java ( Rensch 1934) for which no vouchers could be traced.

Figures

FIGURES 10 – 14. DiStribution of Diplommatinidae in JaVa. 10. Diplommatina planicollis Möllendorff, 1897, Diplommatina heteroglypha Van Benthem Jutting, 1948 and Diplommatina javana Möllendorff, 1897. 11. Diplommatina halimunensis n. sp., Diplommatina kakenca n. sp. and Diplommatina heryantoi n. sp. 12. Diplommatina perpusilla Möllendorff, 1897 and Diplommatina ristiae n. sp. 13. Diplommatina sulcicollis Möllendorff, 1897 and Diplommatina cyclostoma Möllendorff, 1897. 14. Diplommatina calcarata Möllendorff, 1897 and Diplommatina tetragonostoma Möllendorff, 1897.

FIGURES 20 – 22. Diplommatina Spp. from JaVa. 20. Diplommatina sulcicollis Möllendorff, 1897, JaVa (lectotype SMF 105187). 21. Diplommatina halimunensis n. sp., WeSt JaVa: Bogor, between Andam and Mt. Kendeng (holotype MZB 18887). 22. Diplommatina kakenca n. sp., WeSt JaVa: Mt. Cikuray (holotype ZMA 363147). Scale bar = 1.0 mm.