60 Review of the New York Geological Reports. 
reach the surface, seems to afford specimens of this columnar and 
honey-comb shaped coral. Lonspatx’s remark, with regard to 
the identity of this species and the Basaltica, holds good also 
’ with regard to the structure it exhibits in the western country. 
On the same specimen, a single, double, or even triple row of 
pores may be observed; so that no specific distinction can be 
founded on the number of rows of pores on the partition walls. 
Pig. 1 is also a western fossil; at least, Dr. Troost enumerates 
this species amongst corals found in Perry County, Tennessee, 
and the coralline beds near the Falls of the Ohio furnish a spe- 
cies apparently the same, though, in consequence of the difficulty 
of distinguishing the position of the pores in the specimens on 
hand, we cannot speak positively. The last mentioned locality 
in the West, as well as the magnesian limestones of the north- 
west of Illinois, near the lead region, afford fine specimens of the 
tuberose varieties of Fig. 1. (No. 62, p. 159, Haws report.) 
Hall’s Report, p. 159. ‘ 
a 
Fig. 1. Favosites fibrosa? 2. Abirea ragosa. 
The limestone of Iowa City, (known as the Iowa City mar- 
ble,) in the southwest part of the Du Buque district of Iowa, 1s 
almost made up of ceral, the transverse section of which closely 
resembles Fig. 2 of the above wood cut, except that the stars are 
only about three twelfths of an inch across. The Iowa fossil is 
: ~ however not lamelliferous, but presents the appearance of long, 
* uregular hexagonal columns, grouped close together after the man- 
