Ganesella bantamensis (Smith, 1887)
“It is curious that, in spite of the rather intensive malacological exploration of Java, such a peculiar shell has only been found twice.” (Benthem-Jutting, 1950)
“This species is as conical as H. elata [vide Reeve's Conch. Icon. fig. 1248), but the aperture is different, the basal margin being more curved. The apex of the spire is rather large and obtuse and the upper whorls are considerably more convex than the three last. The fine granulation of the surface is invisible to the naked eye. The acute keel of the bodywhorl passes up the spire, giving a carinate appearance to the suture.” (E. A. Smith, 1887)
“Another shell, from the Southern Mountains, residency of Pasuruan, East Java, collected in 1891 by H. Fruhstorfer (Mus. Senckenberg no. 27471) is heigh 10 ½ and broad 10 mm, with an aperture 4 mm height.” (Benthem-Jutting, 1950)
E. A. Smith (1887) original descriptions on Helix (Geotrochus) bantamensis – “Testa elate conica, perforata, mediocriter tenuis, griseo-alba; anfractus 7, tres superiores convexi, caeteri planiusculi, minute granulati, striisque incrementi sculpti, ad suturam carina marginati, ultimus ad peripheriam acute carinatus, infra subplanus antice vix descendens; apertura obliqua, parva; peristoma albidum, margine superiore sinuate, leviter reflexo, basali latius expanse, superne umbilicum semiobtegente.”
Pilsbry (1891) descriptions on Ganesella bantamensis – “Shell elevated conic, about as high as broad. Obtuse at the apex, narrowly perforated, somewhat thin, grayish-white, scarcely shining; whorls 7, slowly increasing, the three upper ones convex, the remainder nearly flat, all over minutely granulate, sculptured with very oblique delicate growth-striae, at the scarcely oblique sutures margined with a slender carina; last whorl acutely carinated at the periphery, nearly flat beneath, slightly descending in front. Aperture oblique, small, equalling 1/3 the entire length; peristome whitish, upper margin oblique, thin, sinuous, slightly reflexed, the basal margin broadly expanded, half covering the umbilicus above.”
Helix (Geotrochus) bantamensis – “Diam. maj. 11, min. 10; alt. 12 mill.” (E. A. Smith, 1887); Ganesella bantamensis – “Alt. 12, greater diam. 11, lesser 10 mm.” (Pilsbry, 1891)