(JO TBUNCATELLINA. 



to fossil species follow. Various Pleistocene species are in- 

 cluded with the Recent forms. 



TRUNCATELLINA SPLENDIDULA (Sandberger). Pupa splen- 

 didula Sandb., Vorwelt, 1875, p. 397. Isthmia splendidula 

 (Sdgr.) Boettger, Jahrb. Nassau. Ver. Nat. Jahrg. 42, 1889, 

 p. 272, pi. 6, f. 9. Fischer and Wenz, Jahrb. Nassau. Ver., 

 1914, p. 93. Pupa cryptodus var. laevis Al. Brn. MS. Upper 

 Oligocene Landschneckenkalk von Hochheim. A smooth, 3- 

 toothed species, resembling salurnensis Reinh. 



TRUNCATELLINA CRYPTODUS (Al. Braun). Pupa cryptodus 

 Al. Br. in Walchner's Geognosie, 2d edit., p. 148. Sand- 

 berger, Vorwelt, p. 396. Isthmia cryptodus (Al. Br.) Boett- 

 ger, Bericht Senck. Ges., 1883, p. 267, pi. 4, f . 7 ; Jahrb. Nas- 

 sau., p. 274. Upper Oligocene Landschneckenkalk von Hoch- 

 heim; northern Bohemia. Lower Miocene, Germany. Near 

 T. lardea and T. strobeli (rivierana). This name has also 

 been quoted P. cryptodanta. I have not consulted the orig- 

 inal publication. 



TRUNCATELLINA LENTILII (Miller). Pupa (Isthmia) lentilii 

 Mill., Jahresh. Wiirttemb. Nat. Ver., 1900, p. 406. Isthmia 

 lentilii Miller, Jooss, Nachrbl. d. Mai. Ges. 44, 1912, p. 37, pi. 

 2, f. 6-6&. Upper Miocene, Steinheim. Related to T. claus- 

 tralis, also rivierana. 



TRUNCATELLINA MIOCAENICA (Clessin). Pupa (Isthmia) 

 miocaenica Cl., Ber. naturw. Ver. Regensburg, xiii, Heft, 

 1912, p. 106. Middle Miocene, Undorf. A toothless species. 



TRUNCATELLINA MINUTULA (Clessin) . Pupa (Isthmia) minu- 

 tula Clessin, Ber. naturw. Ver. Regensburg, xiii, 1912, p. 106. 

 Middle Miocene, Undorf. 



Classification. 



Grouped by the teeth, Truncatellinaa arrange themselves as 

 follows : 



Having a parietal lamella or tooth. 



3-toothed: species in Europe, Abyssinia, South 



Africa. 

 No parietal tooth. 



