INDEX TO GENERA AND SPECIES. 



493 



Nautilus opalinus, Reinecke ; *ee Harpoceras opalinum . 

 „ radians, Reinecke ; see Harpoceras radians 

 „ rotula, Reinecke ; see Amaltheus margaritatua , 

 „ striatus, Reinecke ; see Aegoceras striatum 



subcarinatus, Young and Bird ; see Phylloceras subcariuatum 

 „ TFkitbiensis, Young and Bird ; see Phylloceras heterophyllum 



Planites anguinus, Haan ; see Stephanoceras annulatum 

 bifidiis, Haan ; see Stephanoceras commune 

 Birchi, Haan ; see Aegoceras Birchii . 

 bisulcatus, Haan ; see Arietites Bucklandi 

 Conijbeari, Haan ; see Arietites Conybeari 

 Davcei, Haan ; see Aegoceras Davoei . 

 fibvlatvs, Haan ; see Aegoceras armatum 

 planicostatus, Haan ; see Aegoceras planicosta 

 serpentimts, Haan ; see Harpoceras serpentinum 

 subarmatiis, Haan ; see Steplianoceras subarmatum 



Phyllocekas, Suess ..... 



„ Buvignieri, d'Orbiyny, pi. Ixxvi, figs. I — 3 



„ heterophyllum, Sowerby, pi. Ixxvii, fig. 4 ; pi. Ixxviii, figs. 1, 2 



„ Loscombi, Sowerby, pl. xxxix, figs. 1 — 3^ ; pi. xl, figs. 4, 5 



„ subcariuatum, Fo?<n^ flsnrf £«rrf, pl. Ixxxi, figs. 1 — 3 . 



,, Zetes, d^Orbifftiy, pl. Ixxvii, fig. 1 — 3 



Stephanoceras, Waagen ..... 

 „ annulatum, Sowerby, pl. xxxiv, figs. 7 — 9 



» Braunianum, d'Orbigny, pl. Ixxxvi, figs. 3, 4 ; pl. Ixxxvii, figs. 5, 6 



„ commune, Sowerby, pl. Ixxxiii, figs. 3, 4 ; pl. Ixxxiv, figs. 



figs. 9, 10 . 



» crassum, Young, pl. Ixxxvi, figs. 1, 2, 8 — 10 



„ fibulatum, Sowerby, pl. Ixxxv, figs. 5—11 



« Raquinianum, d'Orbigny, pl. Ixxxvi, figs. .5 — 7 ; pl. Ixxxvii, figs. I — 4, 7, 8 



,, subarmatum, Young, pl. Ixxxv, figs. 1 — 4 



TuRRiLiTEs Boblaijei, d'Orbigny ; see Arietites raricostatus. 

 „ Ci:/yw«r/2, d'Orbigny ; see Aegoceras planicosta 



„ Valdani, d'Orbigny ; «ee Aegoceras biferum .... 



1 — 3 ; pl. Ixxxvii, 



PAGE 



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. 397 



. 378 



. 428 



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. 475 



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. 332 



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. 272 



. 346 



. 340 



. 335 



. 433 



. 477 



418—429 

 421 

 424 

 419 

 428 

 422 



471—481 

 . 475 

 . 480 



473 

 481 

 476 

 478 

 477 



335 

 333 



1 Named Aegoceras Loscombi on explanation of plate xxxix. 



