278 
The American Geologist. 
May, 1891 
GENUS. 
I'OUNDEK. 
TYPE. 
GROWTH. 
UJ 
m 
5 
i- 
1. 
Cyathaxonia. 
Micbelin, 1846. 
C. C'ORNU. 
Simple. 
2. 
Duncanella. 
Nicholson, 1874. 
D. BOREALIS. 
Simple, 
3. 
Duncania, 
DeKoninck,1872. 
Simple. 
UJ 
CO 
5 
4. 
5. 
Cenophyllum. 
(Kenophyllum.) 
Dybowski. 1873. 
K. SUBCYLIX- 
DRICUM. 
Simple. 
■ 
Guynia. 
Duncan. 
< 
H 
III 
6. 
Haplophyllia. 
Pourtales, 1868. 
H. PARADOXA. 
Simple. 
fi. 
X 
7 " 
Petraia. 
Minister, 1839. 
P. DECUSSATA. 
Simple. 
III 
z 
8. 
0. 
Polycoelia. 
King, 1849. 
P. (turbinolia) 
DOXATIANA. 
Simple. 
'- 
Turbinolopsis. 
(Trochopsis.Ehren.) 
Lamouroux.1821. 
Simple. 
E 
< 
Ik 
UJ 
03 
5 
10. 
Acanthocyclus. 
Dybowski, 1873. 
A. (PAl^OCY- 
CHS) FLETCH- 
ERI, E. & H. 
Simple. 
11. 
Baryphyllum. 
Edwards and 
Haime, 1850. 
B. VERNEUIL- 
AN'UM. 
Simple. 
12. 
Combophyllum. 
Edwards and 
Haime. 1850. 
C. OSISMORUM. 
Simple. 
13. 
Hadrophyllum. Edwards and 
Hamie. 1850. 
H. ORBIGNYI. 
Simple. 
14. 
Microcyclus. Moek and 
Worthen, 1868. 
M. DISCUS. 
Simple. 
15. 
♦Pateocyclus. Edwards and 
Hamie, 1849. 
P. (MADREPORA) 
PORPITA, LIXXE . 
Simple. 
(5 
k 

£ 
a 

£ 
or, 
a 
£ 
a 
(Q 

2 
< 
u. 
■ 
ffl 
D 
W 
16. 
17- 
** Acanthodes. Dybowski. 1873. 
A.CYLINDRICUS. 
Simple or ag- 
gregate. 
Amplexus. L , „„, . 
(CyathopsisD-Oi-l,) feowerby ' 1814 - 
A. CORALLOEDES. 
Simple. 
< 
H 
III 
J 
& 
X 
hi 
18. 
Anisophylluni. J**"*^ 
Haime, 1850. 
A. AGASSIZI. 
Simple. 
19. 
Calophyllum. 
Dana, 1846. 
Simple or ag- 
gregate. 
20. 
Chonophyllum. 
Edwards and 
Haime. 1850. 
c. (cyathophyl- 
lum) perfolia- 
tum, goldf. 
Simple or 
loosely com- 
pound. 
= 
21. 
22. 
Coleophyllum. 
Hall, 1883. 
C. ROMINGERI. 
Simple. 
S 
< 
Column aria. 
(Favistella, Hall.) 
Goldfuss, 1826. 
C. ALVEOLATA. 
Astraeiform or 
fasciculate. 
23. 
Cyathophylloides. 
Dybowski, 1873. 
C. KASSARIENSIS. 
Simple, astrae- 
iform or fas- 
ciculate. 
24. 
t Darwinia. 
Dybowski, 1873. 
D. SPECIOSA. 
Compound. 
* Cyclolites, (pars) Lam. ; Fungia, (pars) Lam. ; Porpites, (pars) Scblotb. 
•• Name preoccupied by Agassiz for a fish. 
t Nme preoccupied by Bate for a crustacean. 
