139 
HAMITES intermedins* 
TAB* LXIL — Figs. 2, 3, and 4, except the 
right hand figure » 
S?ec. Char. Depressed,, undulations obtuse* an- 
nular , waved; curvature rounding. 
Syn. Parkinson Org . 2?m. III. 10. JP. 1 . 2. 
narrow end uppermost . 
The undulations continue all around, but in some specie 
mens are obscure at the back ; in size it is intermediate 
between H. maximus and H. rotundus or H. aitenuatusj 
in form between H. maximus and II. gibbosus. 
The three specimens at Fig. 2, and two at Fig. 4, are 
indurated marie ; the smallest of these two last is harder and 
darker coloured, it approaches Argillaceous Iron stone* 
The Figs. 3 are Pyrites with a bright brassy surface, the 
jtraightest of these shows the pearly septa and siphuncle 
Very distinctly. The undulations descend towards the front 
when near the curve, as in three of the smaller fragments^ 
While further from it they are direct, and higher still they 
ascend as in the larger representations ; all these directions 
are seen together in the longest piece of IL rotundas 
