PLATE I. 
1. Baculites Faujasii. ( Fauja’s Baculite.) Smooth, both edges equally rounded, and sides slightly com¬ 
pressed. 
2. Hamites Tenuis. ( Slender Hamite .) Straight, compressed; annulations obtuse, wavy, oblique, some¬ 
what irregular; sometimes obsolete on back margin, sometimes reach only half way. 
3. H. Lyelli. ( LxjelVs Hamite.) Compressed ; gently curved; with remote, slightly developed spiral ribs. 
4. H. Incurvatus. ( Incurved Hamite.) Slightly bent, tapering, a little compressed ; with firm, regular 
annulations, strongly elevated. 
5. H. Attenuatus. ( Attenuated Hamite.) Cylindrically compressed, larger limb abruptly attenuated under 
the curve; numerous obtuse annulations, becoming obsolete towards the back. 
6. B. Obliquatus. ( Oblique Baculite.) Very obliquely undulated and annular surface ; annulations deepest 
at margins or where siphuncle is situated. 
7. Rare variety of 6. Aperture placed obliquely ; each side, with large oval, reflected lobe. 
8. H. Costatus. {Rilled Hamite.) Slightly compressed, with remote, strong, oblique, undulous annulations, 
descending to internal side; most developed towards outer side. 
9. H. Grandis. ( Great Hamite.) Surface, with numerous shallow, oblique undulations in front; each side, 
with a few short, oblique ribs, largest at extremities; between each rib six produced, rounded sulci, reaching 
line, under which siphuncle is situated; posterior surface smooth; margins of septa, with six, very acute, 
numerous sinuses, arranged into six very unequal lobes ; section, sub-rotund. 
10. H. Annulatus. ( Ringed Hamite.) Slightly compressed, incurved, with regular, equidistant, distinct 
annulations ; rather less raised on inner side. 
11. H. Rectus. ( Straight Hamite.) Straight, numerous annulations, oblique, descending to the right, only 
slightly developed; aperture roundish oval. 
12. H. Inflexus. ( Inflected Hamite.) Hooked, with strong, remote, nearly equidistant, wavy annulations, 
interrupted by a sub-carina on internal side; between these two short, pointed ribs, extending over about half 
the surface on external side. 
13. H. Gigas. ( Giant Hamite.) Abruptly curved, with large, transverse, nodulous, oblique ribs, six 
tubercles generally on each, laterally expanded; on both sides three obtuse spines, united to form each rib ; 
ribs almost obsolete in front; larger spines placed near the front; section hexagonal, protruding in front; sides 
and back concave. Size from aperture to extreme edge of curve, 6i in. ; maximum thickness, 2$ in. 
14. H. Maximus. {Great Hamite.) Slightly compressed, with oblique annulations, nearly obsolete at back; 
larger end semi-ovate, smaller end nearly round. 
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