A chart of the Rugose corals. — Sherzer, 
279 
INCREASE. 
FORM, 
\VAI,l,s. 
EPITHECA. 
COST/E. 
CALYX. 
Ova. 
Conical. 
One. 
Complete. 
Distinct. 
Deep, with strong 
projection. 
Ova. 
Conical. 
One. 
Wa n t i n g 
at base. 
Present. 
Deep, circular, 
slightly expand- 
ed above. 
Ova. 
Conical. 
Two. 
Present. 
Ova. 
Conical to sub- 
cylindrical. 
One. 
Plainly de- 
veloped. 
Pinnate. 
Superficial. 
Ova. 
Sub-conical 
with broad 
base. 
One. 
Thick. 
Indistinct. 
Circular. Edge 
projects above 
septa. 
Ova. 
Various, gener- 
ally conical. 
One. 
Rather 
strong. 
Pinnate. 
Verydeep.extend- 
ing nearly to 
base. 
Ova. 
Conical. 
One. 
Present. 
Pinnate. 
Strongly deep- 
ened. 
Ova. 
Sub-conical. 
One. 
Present. 
Present. 
Deeply concave. 
Ova. 
Bowl-shaped or 
short conical. 
One. 
More or less 
strong. 
Indicated. 
Superficial. 
Ova. 
Sub-discoidal or 
bowl-shaped. 
One. 
One. 
Present on 
the base. 
Indistinct. 
Superficial, plane 
or even convex. 
Ova. 
Discoidal. 
Wanting. 
Present. 
Superficial. 
Ova. 
Bowl-shaped or 
short conical. 
One. 
Present. 
Indicated. 
Superficial. 
Ova. 
Discoidal. 
One. 
Strong on 
flat base. 
Radiate. 
Very shallow or 
nearly obsolete. 
Ova. 
Discoidal or 
short conical. 
One. 
Strong on 
base. 
Faint. 
Superficial. 
Ova, lateral gem- 
mation. 
Sub-conical to 
cylindrical. 
One. 
Plainly de- 
veloped. 
Distinct. 
More or less deep- 
ened. 
Ova. 
Conical to cylin- 
drical. 
One. 
Well de- 
veloped. 
Distinct. 
Circular, moder- 
ately deep, with 
thin margins. 
Ova. 
Conical. 
One. 
Present. 
Distinct. 
Deep and spa- 
cious. 
Ova, lateral gem- 
mation. 
Conical to cylin- 
drical. 
One. 
Plainly de- 
veloped. 
Present. 
Not deepened. 
Ova, calicinal 
gemmation. 
Patellate, short 
conical to cylin- 
drical. 
One. 
Thin. 
Broad. 
More or less deep- 
ened, frequently 
with central pit. 
Ova. 
Conical or with 
slender stem. 
One. 
Present. 
More or less 
distinct. 
Shallow and very 
oblique. 
Ova, lateral, cal- 
icinal gemma- 
tion. 
Cylindrical or 
prismatic. 
One. 
Thin. 
Distinct. 
Moderately deep, 
\\ ith thin mar- 
gins. 
Ova, calicinal 
gemmation. 
Conical, cylin 
drical or pris 
matic. 
One. 
Present. 
Rather deep. 
Calicinal gemma 
tion. 
Confluent. None. 
Small pit with el- 
evated rim. 
