201 



D^Orbigny^ TaM. 1. c. p. 285. Ammonoides\ 3 sp. 

 viv. 3 foss. 



D^Orbigny seqnentia genera ad suam Peneroplm refert : 

 Natitilum Ficht. Peneroplem et Argonautam Montfort; 

 Peneroplem et Renulinarn Blainv.; Cristellariam et Re- 

 nulinam Lam.j Placentnlum Blainv» 



Placentula Lam. 



Lamarck, Hist. nat. 1. c. VII. 620. 2 sp. 

 Blainville , Malacol. p. 374. 



pulvinata Bi. VII. f. 5. Encycl. 4^8. fig. g. a-d. Epo- 

 nide Montf. 



astcrizans , BL Encycl. 4^5. f. io. a-c, Fiorilia Montf. 



Planorbulina Orb. 

 D'Orbigny, Tabl. 1. c. p. 280. Ammonoides; 4 sp. viv, 



Planularia Deiramce 9 Orb. 



D'Orbigny 5 Tabl. 1. c. p. 259. Stichostegij 3 spec. 

 viv. 5 foss. 



Planulina, Orb. p. 280. Ammonoides 4 sp. viv. 

 Poljmorphina Orb. p. 265. Enallostegi} 3 sp. viv. 

 10 foss. 



Polystomella Lam. 



Lamarck , hist. nat. 1. c. VII. 624. 



Blainville ^ Malacol. p. 388. 



Auctor Geoponem, Pelorum^ Phonemen., Chry- 

 solum,, Meloniam Monteort buic generi adnn- 

 meravit. 



D'OrbignYj Tabl. 1. c. p. 283, Ammonoides \ 9 

 spec. viv. 2 foss. 

 Auctor sequentia genera cum Polystomella conjunxit: Po- 

 lystomella et Vorticialis Lamarck ; Andromeda, Cellulia , 

 Sporulia , Themeone , Pelorus 7 Geopone , EJphidc 

 Montfort. 



