GASTROCOPTA, EUROPE. 117 



55. GASTROCOPTA JMTMKRI (Deshayes). Pupa munieri 

 DESH., Anim. sans Vert. Bassiii Paris, ii, 1864, p. 858, pi. 56, 

 f. 25-27. Oligocene, Limestone of Beauce, near fitampes. 



56. GASTROCOPTA FISCHERI (Deshayes). Pupa fischeri 

 DESH., 1. c., f. 34-36. 



57. GASTROCOPTA BIFIDA (Desk.). Pupa bifida DESH., t. c. 

 p. 860, pi. 56, f. 19-21. This species and the two preceding, 

 from the same formation and locality, have been placed in the 

 synonymy of B. duly modus, but not from a comparison of 

 specimens. Their status and exact horizon are uncertain. 



58. GASTROCOPTA OBSTRUCTA (Al. Braun). l'up<i obstructa 

 AL. BB., in Walchner's Geognosie, 2. Ann., (1851?), p. 1135. 



Leucochilus obstruct um Al. Br., BOETTGER, Jahrb. Nassau. 

 Ver. Nat,, 42, 1889, p. 284. Pupa obstructa var. francofur- 

 tana BOETTGER, Palaontographica, 24, 1877, p. 195, pi. 29, f. 6 



(Affenstein near Frankfurt). Lower Miocene, Schleusen- 

 kamrner bei Niederrad. 



59. GASTROCOPTA FISSIDENS (Sandberger). Pupa fissidc-ns 

 SANDB., Conchyl. Mainzer Beckeu, 1863, p. 57, pi. 5, f. 16. 

 Leucochilus fissidens Sandb., BOETTGER, Jahrb. Nassau. Ver. 

 Nat, 42, 1889, p. 285. Jooss, same Jahrb., vol. 64, 1911, p. 65. 

 Upper Oligocene of Hochheim; Hydrobia beds of the Lower 

 Miocene of Mosbach-Biebrich and Wiesbaden. 



60. GASTROCOPTA FERDINANDI (Andreae). Leucochilus fer- 

 dinandi ANDREAE, Mittheil. Eomer Mus., No. 18, 1902, p. 18, 

 f. 9. Miocene of Oppeln, Silesia. 



61. GASTROCOPTA BAUDONI (Midland). PI. 21, figs. 13, 14. 

 Vertigo baudoni MICH., Journ. de Conchyl. 1862, p. 76, pi. 

 4, f. 2 (Pupa &., on plate). Pliocene, Hautrrive. 



62. GASTROCOPTA LONGIDENS (Clessin). Pupa (Lcucochila) 

 longidens CLESSIX, Berichte Naturwiss. Vereines zu Regrns- 

 burg, xiii Heft, 1912, p. 105. Middle Miocene, Undorf near 

 Regensburg. 



63. GASTROCOPTA UNDORFENSIS Pils., n. n. Pupa (Lrucoch- 

 ila) milioluni CLESSIN, t, c., p. 106. Not Pupa mUiola Orbigny. 



Same locality. This species and the preceding have not 

 been figured, and their relations to the other species are not 

 known to me. 



