of other fossils, lit nodules inside or debris 
at the foot of the hills. 
These Cyclorites offer every form and co- 
lour, white, yellow, red, brown, &c. : they 
are always siiicified like all the fossils of 
that region, and some times agatized or cal- 
cedohized, becoming almost precious stones, 
from the size of a hazlenut to that of an 
orange. Some kinds are very scarce and 
very valuable, even as opaque gems. I have 
them now all before me, except those of Clif- 
ford’s Museum, and 1 offer them also for sale. 
1 S. G CLADOCYCLITES. 
Body fixed, branched, concentric, circles 
scattered. 
1 Sp. C. alcicornis. Branches unequal, 
smooth, compressed, angular, many circles, 
many faint flexuose wrinkles. — Brown two to 
four inches. 
2 Sp. C. contorta. Branches unequal, 
twisted, different, obtuse, many circles, 
many flexulate wrinkles. — Var. 1. fusca ; 2. 
alba ; 3. scabra . 
3 Sp. C. ramosa. Branches irregular, 
short, lobulate, obtuse, few circles, nearly 
regular, few broad wrinkles, — 10 varieties 
of colour and shapes/ 
4 Sp. C palrngta. Branches broad, pal- 
mate, lobulate, rough, circles small and few, 
few wrinkles, flexuose and close. — From 
Clifford’s Museum. 
2 S. G. CANCELLITES. 
Body free, ramose, anastomosed, or 
branches confluent. 
5 Sp. C. spongioides. Cavernose diformed, 
rugose transversal ly; circles irregular, une- 
qual, and few, formed by one or two flexuose 
wrinkles.-— Var . fascata. 
6 Sp. C. cavernosa . Cavernose, diformed, 
lobed, rough ; circles unequal scattered, 
many round wrinkles. 
7 Sp. C. defluens . Compressed amor- 
phous, fenestrated, lobed, smooth, circles 
unequal, flexuolate. 
3. S. G. PERICYCLITES, or true 
Cyclorites. 
Body free, single, many circles. 
8 Sp . granular is. Diformed, lobed, ca- 
vernose, granular; many circles, confluent, 
unequal, regular; many wrinkles, granular, 
punctiform, concave — Yellowish four inches. 
9 Sp. C. calcedonica. Hardly lobed, 
smooth; many confluent circles, with three 
to five wrinkles; center convex. — Fine spe- 
cies calcedonized. 
10 Sp. C. pusilla . Lobed, diformed, 
smooth; few circles regular, with two or 
three unequal wrinkles.— Small white. 
11 Sp. C mammosa. Lobulate, diformed; 
smooth circles, prominent, convex, unequal, 
but rounded; two or three wrinkles.— Varia 
ble species, several colours. 
12 Sp. C. depressa. Oblong, depressed, 
smooth; circles confluent, with numerous 
wrinkles. 
13 Sp. C. amorpha Amorphous smooth: 
few circles with few wrinkles, thick, broad, 
and flexuose. Many varieties. 
14 Sp C. Convexa. Lobed with cavities, 
depressed, but one side convex; circles one 
or two on each side, with many rough flex- 
uose wrinkles. 
15 Sp. C. lohula . Depressed with three 
unequal lobes smooth; few circles regular 
two or three wrinkles.— Fulvous, three 
inches. 
16 Sp. C. Media. Amorphous depressed 
smooth; circles confluent, one larger, many 
flexuose irregular wrinkles. 
17 Sp C. glomerata. Amorphous knobby, 
lobed, conglomerate; circles irregular, wrin- 
kles flexuose.- — Variable. 
18 Sp. iC, eltiptica. Depressed, elliptic, 
smooth; circles elliptic, unequal, with few 
wrinkles. 
19 Sp. C. corticalis. Rounded, knobby; 
circles rounded unequal, wrinkles corticated, 
center depressed, discolor, naked. — Ful- 
vous white one or two inches. 
20 Sp. C. rubra . Amorphous rounded 
smooth; circles unequal, two to four broad, 
flat wrinkles. — Red, one inch. 
21 Sp. C. dimidiala — Depressed, ellip- 
soid, knobby, two or three confluent circles, 
one larger, few wrinkles, center mamtllar. — 
White calcedonized. 
22 Sp. C dupiicata. Depressed, amor- 
phous, knobby; circles containing smaller 
circles, external circle with one or two 
wrinkles, internal with three or four. 
4 S. G MONOCYCLITES. 
Body free, simple, with only one concen- 
tric circle. 
28 Sp. C. turbinata. Turbinate smooth, 
circle terminal, regular, with few wrinkles. 
—Fulvous one and a half inch. 
24 Sp. C. angulata Depressed, conchoi- 
dal, angular, somewhat rugose, circle small, 
round, with two wrinkles. — Clifford’s Mu- 
seum. — Different from the others by not be- 
ing siiicified but calcarised, bluish, from 
!• the limestone region. 
25 Sp. C. nigra. Rounded, depressed, 
rugose; circle large, many thick wrinkles, 
center concave.— Greyish black, two inches. 
Very rare. 
26 Sp. C. crenata. Depressed, ellipsoi- 
dal, margin crenate or lobular; circle large 
all over the surface, wrinkles crenulate, 
center mamiliar. — While half an inch. Very 
rare. 
27 Sp C. moneta . Depressed, flat, round- 
ed smooth; circles regular, many wrinkles,, 
center convex— half an inch, very rare. 
5 S. G. CYCLEP1TES. 
Body fixed, parasite on other fossils, flat- 
tened, several circles. 
28 Sp. C. turbinolia . Parasite, crustace- 
ous, thin, smooth, flattened, ii regular, seve- 
ral circles unequal, with many flexuose wrin- 
kles —On the Turbinolites. Very rare. 
29 Sp. C. ejfusa. Parasite effuse, thin, 
smooth, flattened, margin lobulate, many 
circles unequal, with few wrinkles unequal 
and irregular. — On the Ortho ceratites , small, 
rare. 
30 Sp. C. paradox a Parasite, unequal, 
rough, flattened, circles small, rounded with 
two or three wrinkles. — On other Cyclorites! 
chiefly spongiola , and cavernosa, rare. 
Thus far my prodromus of 1824 I have 
ascertained some other species, but as they 
are not now under my eye, I postpone their en- 
umeration except the 3 following, which are 
