EUROPEAN SPECIES OF VERTIGO. 207 



will be noted that the description of V. martini, such as it is, 

 agrees with that of V. concinna = levenensis. Its distinctness 

 from V. genesii remains to be established, if it is not identical. 



78&. Vertigo genesii parcedentata (Al. Br., Sbgr.). PI. 18, 

 figs. 15, 19. 



The small, narrowly ovate shell has a narrow umbilical 

 crevice and blunt summit; consists of 4^2 to 5 convex whorls 

 separated by a deeply impressed suture, the last whorl form- 

 ing half of the total length. First whorl entirely smooth, the 

 rest having rather oblique striae, of which there are several 

 finer between two stronger striae. The aperture is semi- 

 ovate, obliquely truncate above, with weakly reflected mar- 

 gins which are connected by a very thin callus; the right 

 margin being \veakly arched forward. It has either one to 

 four teeth [one or two; see below] or is wholly toothless. 

 Length 1.8 to 2.2, diam. 1 mm. (Sandberger) . 



Germany: Pleistocene and Alluvium of the Rhine valley, 

 etc. 



Pupa or Vertigo parcedentata A. BRAUN, Amtl. Bericht 

 iiber die XX Versammhmg deutscher Naturforscher u. Aerzte 

 zu Main, 1842, p. 143 (Wiesbaden; no description). Pupa 

 (Pupilla) parcedentata A. Braun, SANDBERGER, Vorwelt, p. 

 876, pi. 36, f . 25, 1875 ; Verh. Phys.-Med. Ges. Wurzburg xx, 

 1887, pp. 229-235, pi. 8 ; with, on p. 232, varieties quadridens, 

 fig. 1; tridens, fig. 2; adversidens, fig. 3; bidens, fig. 4; glandi- 

 cula, fig. 5; genesii, figs. 6-8. Vertigo (Alaea) parcedentata 

 (Al. Br.) BOETTGER, Jahrb. Nassau. Ver. Nat. xxxxii, 1889, p. 

 308. Vertigo parcedentata Al. Br., KENNARD and WOODWARD, 

 Proc. Geol. Asso. xxviii, 1917, p. 170. (Pleisttocene and 

 Holocene, Northampton, Middlesex, Fifeshire) ; Proc. Malac. 

 Soc. London vii, 1906, p. 119 (identity of V. levenensis with 

 parcedentata var. genesii). Pupa adversidens and Pupa glan- 

 dicida, SANDBERGER, Verh. Phys.-Med. Ges. Wurzburg, n. F., 

 xix, 1886, p. 319, names only. Pupa (Vertigo) parcedentata 

 Al. Br., WiisT., Zeitschr. deutschen Geol. Gesell, vol. 59, 1907, 

 p. 121 ; Zeitschr. f. Naturwiss, vol. 75, 1902, pp. 316, 320, pi. 

 6, f. 26-32. 



