cxcviii INFERIOR OOLITE AMMONITES. 



Super-family — Ammonitacea. 



Family — Arietid^:. Hudlestonia. 

 Fa m ily— Hildoceratid^;. 



Sub-family — Hildoceratin^:. Hildoceras, Pseudolioceras, Canavarella, Vacekia, 

 Polyplectus. 



Sub-family — Grammoceratin^e. Grammoceras, Cotteswoldia, Pleydellia, Canavarina, 



Walkeria, Phlyseogrammoceras, Pseudogrammo- 

 ceras, Asthenoceras. 



Sub-family — Haugin,e. Chartronia, Lillia, Benckmannia, Haugia, Phymatoceras, 

 Brodiceras. 



Sub-family — GraphoceratinvE. Grajdioceras, Pseudographoceras, Platygraphoceras, 

 Braunsina, Crickia, Blixboceras, Budwigella, 

 Ludwigia, Kiliania, Wiltshireia, Apedogyria, 

 Ludwigina. 



Sub-family — Ltjctinje. Lucya, Paquieria, Paineia, Cylicoceras, Depaoceras, Lioceras, 

 Cypholioceras, Ancolioceras. 



Sub-family — Hyattein^. 1 Stroplwgyria, Hyattina, Hyattia, Cosmogyria, Welschia, 

 Geyeria, Manselia, Brasilina, Brasilia. 



Sub-family — Darellein^c. Braunsella, Beynesia, Darellina, Darellella, Beynesella, 

 (Edania, Hugia, Lopadoccras, Darellia, Stokeia, 

 Dissoroceras, Beltotoceras, Deltoidoccras, Toxolioceras, 

 Hyperlioceras. 



Family — Amaltheid^;. 



Sub-family — Sonninin^e. Zurcheria, Haplopleuroceras, Pcccilomorpilius, Dorsetensia, 

 Sonninia. 



Family—- Polymorphid^;. Polymorphites, Tmetoceras, Catulloceras, Fovtannesia, Bumortieria. 



VI. AMMONITE DEVELOPMENT. 



For the better understanding of the revised system of Ammonite grouping now 

 adopted, and in accordance with which this work has been revised, it may be 

 desirable to recapitulate briefly certain phenomena of Ammonite development. 

 Some reference has been made to them in various places in the body of the work 



1 Spelt thus not to conflict with Hyattina. 



