CONTENTS. Vll 



PAGE 



Fam. IV. Belemnitidce. — Belemiiites, Belcmnitella, Acan- 

 thoteuthis, Belemiiites, Belemuoteuthis, Conoteutliis ... 73 



Tam. V. SepiadcO: — Sepia, Spirulirostra, Beloptera, Be- 

 lemnosis 76 



Fam. VI. Spirtdida. — Spirula 17 



Order II. Tetrabranchiata 83 



Fam. I. Nautilida. — Nautilus, Lituites, Trochoceras, Cly- 



menia 83 



Fam. II. OrthoceratiddB. — Orthoceras, Gomplioceras, On- 



coceras, Phragmoceras, Cyrtoceras, Gyroceras, Ascoceras 87 

 Fam. III. Ammonitidcs. — Goniatites, Bactrites, Ceratites, 



Ammonites, Crioceras, Turrilites, Hamites, Ptychoceras, 



Baculites 91 



Class II. Gasteropoda , • 97 



Order I. Prosobranchiata 103 



Section A. Siphonostomata 104 



Fam. I. Strombidce. — Strombus, Pteroceras, Rostellaria, 



Seraphs lOi 



Fam. II. MiiricidcB. — Murex, Pisania, Banella, Triton, Pas- 

 ciolaria, Turbinella, Cancellaria, Trichotropis, Pyrula, 



Pusus 106 



Fam. III. Buccinidce. — Buccinum, Pseudoliva, Anolax, 

 Halia, Terebra, Eburna, Nassa, Phos, Bingicula ?, Pur- 

 pura, Purpurina, Monoceros, Pedicularia, Bicinula, Pla- 

 naxis, Magilus, Cassis, Oiiiscia, Cithara, Cassidaria, Do- 



lium, Harpa, Colurabella, Oliva, Ancillaria 110 



Fam. IV. Conida. — Conus, Pleurotoma 117 



Fam. V. Voluiidcs. — Voluta, Cymba, Mitra, Yolvaria, Mar- 



ginella 118 



Fam. VI. Cypraidce. — Cypraea, Erato, vulum 120 



