Kaliella barrakporensis (Pfeiffer, 1852)

Vermeulen, Jaap J., Liew, Thor-Seng & Schilthuizen, Menno, 2015, Additions to the knowledge of the land snails of Sabah (Malaysia, Borneo), including 48 new species, ZooKeys 531, pp. 1-139 : 79-82

Taxon classification Animalia Stylommatophora Euconulidae

Kaliella barrakporensis (Pfeiffer, 1852) Figure 70

Helix barrakporensis Pfeiffer, 1852: 156. Kaliella barrakporensis (Pfeiffer) Godwin Austen, 1882 (1882-1888): 2; Schilthuizen 2004: 94; Clements et al. 2008: 2762; Liew et al. 2010: Appendix S1 in online Supporting Information; Schilthuizen et al. 2013: online supplementary data. Type from: India, Barrakpore.

Sitala rumbangensis E.A. Smith, 1895: 110. Type from Malaysia, Sarawak, Rumbang and Mount Rabong.

Sitala cara E.A. Smith, 1895: 111. Type from Malaysia, Sabah, Gomantong hill.

Kaliella angigyra Von Moellendorff, 1897: 60. Liardetia angigyra angigyra (Von Moellendorff) Van Benthem Jutting, 1950: 398; Schilthuizen and Rutjes 2001: 420; Schilthuizen et al., 2002: 256-258. Type from Indonesia, Java).

Examined material from Sabah.

Interior Province. Crocker Range N.P., Gua Laing c. 12 km North of Keningau (leg. J.J. Vermeulen, V 1129; leg. M. Schilthuizen, BOR/MOL 836); Mahua Waterfall (leg. M. Schilthuizen, BOR/MOL 3142). Gunung Trusmadi slopes, Gua Loloposon (leg. J.J. Vermeulen, V 13238; leg. M. Schilthuizen & P. Koomen, BOR/MOL 833); Gua Dawaras (leg. M. Schilthuizen, V 9874; leg. M. Schilthuizen & M. Suleiman, BOR/MOL 2363). Pinangah valley, Batu Urun (= Bukit Sinobang) (leg. J.J. Vermeulen, V 1169, BOR/MOL 844; leg. M. Schilthuizen, BOR/MOL 847). Pun Batu c. 30 km West of Sepulut (leg. J.J. Vermeulen, V 1278). Sepulut valley, Batu Punggul (leg. J.J. Vermeulen, V 1989; leg. T.S. Liew, M. Schilthuizen & S. Chiba, BOR/MOL 4326; leg. M. Schilthuizen, BOR/MOL 851); Batu Sanaron (leg. M. Schilthuizen, BOR/MOL 850, BOR/MOL 852; leg. T.S. Liew, M. Schilthuizen & S. Chiba, BOR/MOL 4313); Batu Temurung (leg. J.J. Vermeulen, V 8051, BOR/MOL 831; leg. M. Schilthuizen, BOR/MOL 846); Bukit Tinagas, East end of Batu Punggul limestone (leg. J.J. Vermeulen & M. Schilthuizen, V 7633; leg. M. Schilthuizen, BOR/MOL 848); Gua Pungiton (leg. J.J. Vermeulen & M. Schilthuizen, V 7559, BOR/MOL 843; leg. M. Schilthuizen, BOR/MOL 845). Sandakan Province. Kinabatangan valley, Batu Tai (not Bod Tai) near Gomantong (leg. J.J. Vermeulen & M. Schilthuizen, V 9925; leg. T.S. Liew & B. Elahan, BOR/MOL 1941); Batu Materis (leg. T.S. Liew & B. Elahan, BOR/MOL 2088, BOR/MOL 2120); Batu Mawas (leg. M. Schilthuizen, BOR/MOL 2384; leg. T.S. Liew & M. Schilthuizen, BOR/MOL 1960, BOR/MOL 1996); Batu Tomanggong Besar (leg. T. S. Liew & Badul, V 13528; leg. M. Schilthuizen, BOR/MOL 2415); Batu Tomanggong Kecil (leg. T.S. Liew & B. Elahan, BOR/MOL 2030); Batu Tulug (Batu Putih) along road Lahad Datu-Sandakan, North of bridge over Kinabatangan River (leg. J.J. Vermeulen & H. Duistermaat, V 1487); Gomantong Hill 30 km South of Sandakan (leg. J.J. Vermeulen & H. Duistermaat, V 1619; leg. J.P. King, BOR/MOL 2417; leg. A. van Til, BOR/MOL 3305; leg. T.S. Liew & J.P. King, BOR/MOL 3659); Unnamed hill near Sukau Police Station (leg. T.S. Liew & B. Elahan, BOR/MOL 2226). Pinangah valley, Batu Melikop (leg. R. Kiew, V 7724). Tawau Province. Batu Baturong c. 50 km W.S.W. of Lahad Datu (leg. J.J. Vermeulen & H. Duistermaat, V 1861). Gua Madai c. 40 km S.S.W. of Lahad Datu (leg. J.J. Vermeulen & H. Duistermaat, V 1732). Segama valley, hill N.W. of crossing road Sandakan-Lahad Datu with the Segama River (leg. J.J. Vermeulen & H. Duistermaat, V 1681); ‘Kirk’s Cave’ 8 km North of Lahad Datu (leg. J.J. Vermeulen, V 1229); limestone hill on North bank Segama River, near bridge of road Sandakan to Lahad Datu (leg. J.J. Vermeulen, V 7513); Danum Valley (leg. M. Schilthuizen, BOR/MOL 810, BOR/MOL 1230, BOR/MOL 829; leg. H.A. Rutjes, BOR/ MOL 830); Tabin Wildlife Reserve (leg. M. Schilthuizen, BOR/MOL 840); Sabahmas Cave (leg. J.J. Vermeulen, V 7468, BOR/MOL 841). Semporna area, Segarong Hills, Batu Tengar, 25 km E.S.E. of Kunak (leg. J.J. Vermeulen & H. Duistermaat, V 1791). West Coast Province. Kinabalu N.P., Headquarters area near entrance (leg. J.J. Vermeulen, V 9771, BOR/MOL 2416); Summit trail at 1723 m (leg. T.S. Liew, BOR/MOL 6041); Poring Hot Springs, along path to waterfall (leg. J.J. Vermeulen, V 13014, leg. M. Schilthuizen & P. Koomen, BOR/MOL 832); Serinsim (leg. M. Schilthuizen, BOR/MOL 3077). Kota Kinabalu, Kiansom (leg. UMS students, BOR/MOL 820; leg. M. Schilthuizen, BOR/MOL 839, BOR/MOL 865; leg. UMS Tropical Malacology Course participants, BOR/MOL 3470, BOR/MOL 3477); Papar, Kg. Langsat (leg. T.S. Liew, M. Schilthuizen & F. Disuk, BOR/MOL 3097).

Description.

Shell small, rather thin, somewhat translucent or opaque, (pale) brown-corneous, (somewhat elongated) conical with almost flat or slightly convex sides; apex narrowly rounded. Surface shiny or with a silky luster. Whorls moderately convex, the last whorl rounded to angular at the periphery, rounded above and below the periphery. Protoconch whorls convex, with spaced, inconspicuous radial riblets and usually subordinate, very fine spiral grooves; protoconch sometimes almost smooth. Teleoconch: Last whorl usually with a peripheral spiral thread coinciding with the suture of the penultimate whorl, above this with very fine, densely and regularly placed radial riblets, often only locally present, in some specimens virtually absent, and with or without traces of very fine (just visible at 40 times magnification), inconspicuous spiral striation; below the periphery usually with numerous fine, moderately and regularly spaced, continuous spiral grooves. Umbilicus open, narrow. Dimensions: Height up to 4.6 mm; width up to 4.3 mm; diameters of the first four whorls 0.65-0.80 mm, 1.10-1.25 mm, 1.5-2.0 mm, 2.15-2.70 mm respectively; number of whorls up to 6 1/2; height aperture up to 1.5 mm; width aperture up to 2.0 mm.

Habitat in Sabah and distribution.

Primary and secondary forest, rocky, vegetated roadsides, on limestone, sandstone, and granodiorite soil, up to 2200 m alt. Sabah: widespread. Also in Sarawak; Kalimantan. Distribution elsewhere: Africa. India; Thailand; Laos; Peninsular Malaysia to Java; Eastwards to Sulawesi, Flores.

Remarks.

Incidental specimens lack the spiral thread along the periphery of the last whorl. A fine but almost continuous spiral striation may be present on the top whorls.