ORCULA. 



11 



Branesik stated that he possessed all intergrades between 

 this lengthened race and the typical dolium. The figure is 

 copied from Kobelt, and represents a specimen from Branesik. 



Id. Orcula dolium pseudogularis Wagner. 



Shell strikingly slender-cylindric, with, thin, weakly-lipped 

 peristome and often weak but always present upper columel- 

 lar fold. Length 8, diam. 3 to 3.4 mm. (Wagner). 



Lower Austria: Cliffs of the Tuerkensturz at Gleissenfeld 

 in the Pittental. 



Orcula dolium pseudogularis Anton Wagner, Verh. zool.- 

 bot, Ges. Wien, lxii, 1912, p. 252. 



The similar Orcula dolium kimakowiczi Branesik = Orcula 

 brancsiki Clessin, from the Manin gorge in northern Hungary 

 also has a slender spire, which however tapers conically from 

 the middle on; a strongly lipped, more expanded peristome, 

 and also the upper columellar fold is constantly wanting 

 (Wagner) . Compare uniplicata P. & M. 



le. Orcula dolium plagio stoma ('Braun' Sandb.). PI. 1, figs. 

 12, 13. 



"Mostly smaller than the typical form, and having on the 

 columella either only one lamella or none. 



"Length 6-7, diam. 2y 2 -3 mm." (Sandberger) . 



Length 6, diam. 2.8 mm.; 8y 2 whorls (fig. 13) 



The small parietal lamella penetrates hardly half a whorl, 

 and diminishes within. The low or obsolete columellar lamella 

 is also short, not appearing on the axis within the last whorl. 

 Umbilical perforation is small. 



Mid-Pleistocene of many places from Alsace to Austria and 

 Hungary. 



Pupa dolium (var. plagiostoma) Al. Braun, Amtlicher 

 Bericht xx Versamml. Ges. deutscher Naturf. u. Aerzte zu 

 Mainz, 1842, p. 143 (1843), name only. — Sandberger, Vor- 

 welt, p. 878, pi. 36, f. 21 (1875). 



The degeneration of the lamellae, especially striking when 

 the shell is opened (fig. 12), seems to indicate specific dis- 

 tinction for this form ; yet as only a single lot from the loess 

 is before me, the range of variation and possible intergrada- 



