VERTIGO, PARACRATICULA. 221 



Vertigo protracta suevica Gottschick et Wenz, Nachrbl. 

 D. M. Ges., li, 1919, p. 21, pi. 1, f. 40, 41. Upper Miocene, 

 Sarmatiau : Steinheiin am Albuch. 



Vertigo (Vertilla) angulifera milleri Gottschick et 

 Wenz, Nachrbl. D. M. Ges., li, Jan. 1919, p. 21, pi. 1, f. 38, 39. 

 — Vertigo peraperta Pils., Manual, vol. xxv, p. 219, June 1919. 



Vertigo miliolum (Sandberger). P.[upa] miliolum Sandb., 

 Land- und Siisswasser-Conchyl. Vorwelt, 1874, p. 550. — Ver- 

 tigo (Vertigo) sandbergeri Wenz, Fossilium Catalogus, iii, 

 1923, p. 1002. Upper Miocene, Tortonien: Sansan; various 

 places in Galicia. 



Wenz has renamed this species, supposing the original name 

 to be preoccupied by A. d'Orbigny; but miliola Orb. was de- 

 scribed originally as a Helix and now belongs to Gastrocopta, 

 so there was no real preoccupation, and Sandberger's miliolum 

 will stand. 



Vertigo vectensis L. R. Cox. Proc. Malac. Soc. London, 

 xvi, 1894, p. 123, figs, a, b, c ; same vol., 1925, p. 225, figs. i-l. 

 Lower Oligocene, Tongrian: Bembridge Limestone, Whitecliff 

 Bay, Isle of Wight. 



Vol. XXV, p. 216, line 3: for "et" read de. 



PARACRATICULA Oppenheim. 



Paracraticula Oppenh., Denkschr. K. Akad. Wissensch., 

 vol. 57, 1890, p. 126, for Pupa (Paracraticula) umbra Oppenh., 

 1. c, pi. 3, f. 10-10&; Zeitschr. Deutsch. geol. Ges., vol. 47, 

 1895, p. 104. See also the synonym Pupa turcica var. singu- 

 laris De Gregorio, Ann. de Geol. et de Pal., x livr., pp. 19, 25, 

 pi. 2, f. 17. — Paracraticula umbra Wenz, Foss. Cat., ii, p. 733. 

 Middle Eocene of Pugniello, prov. Vicenza, Italy. 



The type and only species of this group is a minute form, 

 about 1 mm. long, having a strongly defined sinulus and nu- 

 merous lamellae, as shown in pi. 29, figs. 1, 2, reproduced from 

 Oppenheim. It has been considered a Streptaxid snail near 

 Ennea by some authors, but appears far more likely to be a 

 specialized form related to Ptychalcea, Glandicula etc. and 

 thus belonging to the Vertigininse. 



