200 EUROPEAN SPECIES OF VERTIGO. 



expanded, little thickened. Length 4-4.5, diam. 1 mm. 

 (Clessin, 1877). 



Germany : drift debris of the Danube, Regensburg, Bavaria 

 type loc. Giinzburg on the Danube, Schonthal on the Jagst 

 and Neckarthailfingen on the Neckar (Goldfuss). Ireland? 



Pupa (Vertigo) heldi CLESSIN, Nachrbl. d. Malak. Ges. 

 1877, p. 49; Deutsche Exk.-Moll.-Fauna, edit. 2, p. 266, fig. 

 156. OBERNDORFER, Nachrbl. 1898, p. 69. Pupa (Alaea) 

 heldi CLESSIN, Berichte naturwiss. Vereines zu Regensburg 

 xiii, Heft fiir 1910-1911, p. 83. Pupa pygmaea var. elongata 

 GEYER, Jahresh. Ver. Vaterl. Naturk. Wiirttemberg 1894, p. 

 107; identical with P. heldi, same Jahresh. vol. 36, 1907, p. 

 424. Debris of the Danube, Neckar, etc. 



? Vertigo heldi TOMLIN, Irish Naturalist xii, 1903, p. 110; 

 Journ. of Conch, x, 1903, p. 307; Proc. Malac. Soc. London 

 xii, 313 (an abnormal V. pygmaea}. B. B. WOODWARD, t. c., 

 p. 361 (doubts the identification). 



Clessin found only dead specimens in the Danube debris, but 

 thought it must live not far away. It was found living in the 

 Wiirttemberg Jura. Dr. Geyer believes heldi to be an over- 

 grown V. pygmaea. He notes that "full-grown specimens 

 with completed peristorne and teeth are rare. Contrary to 

 the other Vertigos, the palatal teeth appear first, and the 

 parietal tooth may even continue absent, this condition lead- 

 ing to P. haeussleri Sterki." 



V. heldi was first reported from Ireland (Ballintoy, Co. 

 Antrim) by Mr. B. Tomlin, whose specimen was examined by 

 Dr. Boettger, who believed heldi to be a variety of alpestris. 

 In his second note, attention is called to the smooth and glossy 

 surface of the Irish shell while heldi is described as striate. 

 "Placed side by side with a typical V. alpestris it differs in 

 possessing an extra whorl and larger dimensions in every way, 

 in its reddish-brown color, in its feebler dentition, and in the 

 shape of the mouth, the outer margin of which slopes very 

 obliquely from right to left, thus producing the sort of 

 channel at the top to which Clessin refers." Subsequently 

 Mr. Tomlin thought the Irish shell an abnormal V. pygmaea. 

 This harmonizes with the ideas of Geyer, noticed under 

 V. pygmaea. 



