Liardetia platyconus (von Moellendorff, 1897)
“The species is rather variable in height: breadth ration. Shells from the Gedeh-Pangerango massive (inclusive the locality Rarahan) are broader and more depressed than those from other stations in Java.” (Benthem-Jutting, 1950)
Möllendorff (1897) original descriptions on Kaliella platyconus – “T. perforata, depresse trochiformis, tenuis, pellucida, tenuiter et confertim, sed distincte striatula, corneo-lutea. Spira modice elevata lateribus vix convexiusculis. Anfr. 5½ convexiusculi, ultimus cariua peracuta utrimque exserta cinctus. Apertura parum obliqua, late securiformis, peristoma rectum, acutum, margine columellari superne breviter reflexo.”
Benthem-Jutting (1950) descriptions on Liardetia platyconus – “Shell low conical, with a moderately round base and a sharply keeled periphery of the last whorl. Sides of the shell a little convex, more in adult than in young animals. Yellowish or straw-colour, somewhat shining and transparent. Finely striated in radial and in spiral direction. Whorls 5-5 ½. Regularly increasing in diameter, moderately curved. Suture distinct, a condition which is the more marked by a slight scalariformity of the later whorls, causing the formation of a narrow channel between the thread-like keel and the suture. Last whorl occasionally a little descending towards the aperture. Top blunt, umbilicus narrow. Aperture rhombiform, oblique. Peristome not continuous, sharp. Columellar side vertical and somewhat reflected, hiding part of the umbilicus.”
Kaliella platyconus – “Diam. 3.66, alt. 2.5 mm.” (Möllendorff, 1897); Liardetia platyconus – “Dimensions: height 2.2-3.3, breadth 3.2-4.3, height of aperture 0.7-1.4. The type specimen from Java (without further locality) (Mus. Senckenberg no. 62103) is high 2.6 and broad 3.7 mm, with an aperture of 0.7 mm height. In the original diagnosis the height is given as 2.5, the breadth as 3.66 mm.” (Benthem-Jutting, 1950)
Type locality – “Java” (Möllendorff, 1897)
Other localities – “West Java: Mt. Gedeh, 7500 feet” (Benthem-Jutting, 1950); “West Java: Pantjoran Mas, near Rarahan, Mt. Gedeh, 1400 m” (Benthem-Jutting, 1950); “West Java: near waterfalls of Tjibeureum, Mt. Gedeh, 1700 m” (Benthem-Jutting, 1950); “West Java: Kandang Badak, saddle between Mt. Gedeh and Mt. Pangerango, 2400 m, soil fauna” (Benthem-Jutting, 1950); “West Java: Mt. Gedeh, craterfield, under moss, 2700 m” (Benthem-Jutting, 1950); “West Java: Mt. Pangerango, 2900 and 3000 m” (Benthem-Jutting, 1950); “West Java: limestone hill near Sukanegara, Djampangs, 1000 m” (Benthem-Jutting, 1950); “West Java: Mt. Tangkuban Prahu, 1000 m” (Benthem-Jutting, 1950); “West Java: Mt. papandajan, 5000 feet” (Benthem-Jutting, 1950); “West Java: Mt. Malaber, 1600 m” (Benthem-Jutting, 1950); “West Java: Mt. Tjikorai” (Benthem-Jutting, 1950); “East Java: Tengger Mts, 1200 feet” (Benthem-Jutting, 1950); “East Java: Vetshoogte, Nongkodjadjar, Tengger Mts, 1250 m” (Benthem-Jutting, 1950); “East Java: Tosari, Tengger Mts, 1700 m” (Benthem-Jutting, 1950); “East Java: Idjen Highland, Kendeng III, 1400 m” (Benthem-Jutting, 1950); “East Java: Kawah Idjen-Merapi Game Reserve, 1600-1700 m” (Benthem-Jutting, 1950); “East Java: Ongop-Ongop, Idjen Highland, 1850 m” (Benthem-Jutting, 1950)
“living on the ground in forests of the mountain region, among dead leaves, decaying wood, moss and other low vegetation.” (Benthem-Jutting, 1950)