106 
RHJETIC AND LIAS SPECIES. 
Lower. 
Middle. 
Upper. 
I 
no : 
cr V '<3 -r 
a 
1 
2 
I 
.2 
SPECIES. 
gtic Beds. 
till 
1. 1 1 B 
ft S M c 
i 11 
II ! 
, margaril 
, spinatits 
. annulati 
P& 
commun 
juronsis. 
1 
| 
| 
h 
REMARKS. 
^ 
B S 5 B 
a 
a a 
g ' g 
a a 
S ' S 
| 
1 
& 
a. 
3 
< < 
<1 <j 
^ 
<! <^ 
H 
" 
P 
Ammonites row?". 
similis, Simp., Mon. 
\ 
Si 
Near to Am. lythensis 
Am., p. 34, and 1855, 
and Am. stibconcavus. 
p. 74; (Harpoceras) T. 
& B., p. 304, pi. 1, f. 4. 
simplex, Simp., v. Am. 
Huntoni. 
| 
Simpsoni, Bean, in 
Simp. Mon. Am., p. 37, 
(Amaltheus) T. & B., 
p. 291, pi. viii.,f. 4 ; Wr., 
Lias Am., p. 392, pi. 
T 
i 
Jm 
i 
S 
\ Xearto^w. oxynotus. 
Wright (pi. xlvii., 
f. 4-7) in Leek. Coll. 
xlvii., f. 4-7 ; Am.flavus, 
Hmatus, Simp., p. 123. 
sinemuriensis, 
T 
d'Orb., T. J., pi. 95, f. 
1-3; (Arietites) T. & B., 
p. 287. 
sinuatus, Simp., 1855, 
p. 62 ; (JEgoceras) 
T. & B., p. 283. 
Si 
Single specimen in the 
Whitby Museum. 
siphuncularis, Simp., v. 
Am. planicosta. 
Smithii, Sow., v. Am. 
obtusus. 
socialis, Simp., 1855, p. 
T 
? =Am. armatus. 
39; (JSgoceras) T. & B., 
' 
i 
p. 278, pi. vii., f. 6 ; Am. 
plicatilis, Simp., Mon. 
Am. ; Am. involutus, 
Simp., p. 67. 
solitarius, Simp., 1855, 
T 
Resembles Am. spi- 
p. 93; (Amaltheus), T. 
&B.,p. 295, pi.viii., f. 2; 
Am. geometricus, Phil., 
i 
2 
Jm 
natus. 
G. Y., p. xiv., f. 9, (non 
2 
Y. & B. non Oppel). 
spicatus, Simp., v. Am. 
armatus. 
spinaries, Quenst., v. Am. 
sauzeanus. 
spinatus, Brug. Ency. 
Meth., torn, i., p. 40; 
T 
T 
7 
Jm 
S 
Wright gives Am. sub- 
nodosus as a distinct 
d'Orb., T. J., pi. 52; 
2 
i 
2 
species, but appears 
to have some doubt 
( Amaltheus), ' T. "& ~E.\ 
on the matter. It is 
p. 295 ; Wr.; Lias Am., 
very near to Am. 
D. 402, pi. lv., f. 1, 2; 
spinatus. 
pi. Ivi., f. 1-5; Am. 
hawskerensis, Y. & B., 
pi. xiv., f. 2; Am. Sirdi, 
geometricus, subnodo- 
sus, exasciatus, Simp., 
p. 127-131 ; Am. costa- 
tus, Quenst., Ceph., pi. 
v., f. 10.; ? Am. subno- 
dosus, Y. & B., p. 258, 
pi. xiii.,f.3; (Arietites) 
Wr., Lias Am., p. 288, 
pi. vi., f. 2, 3. 
