Pars 18 



Polygyra — Triodopsis 



355 



1890 Polygyra cereolus microdonta, JJali, (WJa; Transact. Wagner Free 



Inst. cf Sci. of Philadelphia. Vol. III, pt. I, p. 19. 

 1899 Polygyra cereolus microdonla, Johnson, (99a) The Nautilus XIII, 



p. 67—. 

 1903 Polygyra microdonta, Dall, (90a) Transact. Wagner Free Inst of 



Sci. of Pluladelphia. Vol. III, pt. VI, p. 1605. 

 Vorkommen: 0. Pliocan: Galoosahatchie Beds: G a 1 o o - 



sahatchie River (Florida). 



Polygyra (-?-) petrochlora Cockereli. 



*1914 Polygyra (?) petrochlora, Cockerell, (14a) Bull. American Mus. 

 Nat. Hist. New York XXXIII, p. 103, tab. VIII, p. 6—10. 

 Vorkommen: U. Paleocan, Thanetion: Pucrco oder Torre- 

 jon beds: N. Mexico. 





Zeitliche Verbreitung der tertiaren Species des Genus Polygy 



ra 



SPECIES 



Pa 



a 



■-_> 



•o 



a 

 cd 



J3 



.eo< 



.£? 

 *G 



CC 



E 



■-. 

 o- 

 C/J 



^an 



a 



en 

 •<u 



o. 



>" 



E 



a 

 a> 



*<U 

 3 

 -1 



OCfi 

 (Pr 

 bon 



a 



<u 



"a 



o 



ca 



eo 



.n 

 ia- 



ien) 



a 



a* 



•5 



a 

 -J 



Oli 



a 



c 

 o 

 H 



goc 



a 

 J5£ 

 "3 

 o. 



a 

 OC 



an 



r: 



'5 

 rt 



*s 



o- 

 «S 



Miociin 

 , (Vindo- 

 : bonicn) 



1 «1| 



tw *s c 



I * t 

 a <u o 

 oa as , s- 



c 

 ,<u 



s 



g 



c-j 



PJ 



c 



.22 



c 

 o 

 o. 



ioc 



c 



I 



- 



cd 

 ,c/* 



£ 



an 



H 



CJ 



*n 



< 



petrochlora 

























— 



— 



— 



1 



— 



— 



— 



— 



adamnis 









— 



— 













caloosaensis 





cereolus 

 microdonta 



















Grenus Triodopsis Rafinesque 1819. 106 ) 



Genotyp: Triodopsis tridentata (Sav.). 

 Syn.: Patera Albers, 1850. 107 ) 



Glostoma, Alljers, 1850 108 ) (part!). 



(Vgl. auch Pilsbry, Manual of Conchology. 2. ser. Pul- 

 monata. vol. IX, p. 68.) 



? Triodopsis adipis (White). 



"1886 Helix adipis, White, (86a) Bull. U. S. Geol. Survey No. 34 p. 12 



(400), 27 (415). 

 1905 Helix adapis, Schuchert, (05a) Bull. U. S. National Museum No. 

 53, pt. I, p. 306. 



10R ) Journ. de Pliysique LXXXVIII, p. 425. 



107 ) Die Heliceen nach natiirlicher Verwandtschaft svstematisch ge- 

 ordnet. p. 96. 



t08 ) Ibid. p. 95. 



23' 



