eT i ic el lh, ik aa a 
627 
delimitations of the latter, fossils play their most important part. 
Furthermore, in this district as well as farther north in Luzon, some 
small amount of prospecting has been done for coal and upon this 
subject some deductions resulting from the study of the fossils of the 
several districts and which may be found to possess practical value, can 
be made. Concrete examples are always more convincing than abstract 
statement. One may be given as follows: In all the coal fields visited 
by the writer in Batan and Cebu islands, the coal seams have been 
found to lie stratigraphically below the Upper Miocene beds. Now, in 
the Batangas district, as well as farther north in several] localities, we 
have found beds with an Upper Miocene fauna resting just above the 
igneous base. This means that the Lower Miocene, Oligocene, and 
Kocene are missing and from this, in turn, the conclusion must. be 
reached that coal beds corresponding to those of Batan, Polillo, and 
Cebu are wanting in many of these localities. Great care should be 
taken in interpreting this statement, which does not mean that coal 
will not be found in northern Luzon, for it is known to occur in the 
Zambales Range and in the Cagayan Valley. On Plate IIL the most 
typical of these Upper Miocene fossils are figured and these may be used 
as indicators. 
DESCRIPTION OF SPECIES. 
ZOOPTLY'TA. 
FUNGIDE. 
CYCLOSERIS M. E. & J. H. 
Cycloseris hidalgi sp. nov. Pl. IV, fig. 1. 
C. fC. decipiens Mart., Tertiiirschicht. auf Java. Pl. XXV, fig. 3, p. 143. 
Thickness, 5 millimeters; diameter, 58 millimeters. Circular, with radiating 
septa arranged in cycles, I-VI. Number of principal septa, 48. 
Thin, upper surface convex, slightly depressed in the center. 
Locality: Limestone on Loboo River, Batangas Province. 
Age: Younger Miocene, 
KUPSAMMIDA, 
BALANOPHYLLIA. 
Fig. 2 (Pl. 1V) is a photograph of a very poor specimen, from the same bed as 
that in which Cycloseris was found, which I have provisionally called a Bala- 
nophyllia, P 
FORAMINIFERA. 
ORBITOIDES dOrb. 
Description of genus.—Test discoidal, with cireular or stellate contour, often 
bent, exterior smooth or with radial stri#, and composed of numerous concentric 
annuli disposed about a primordial spiral of three to five whorls. The rings are 
divided by transverse partitions into small, rectangular chambers and the septa 
and marginal cord are traversed by canals. Superimposed over the median series 
of the principal chambers on both sides are several layers of flattened secondary 
chamberlets, which are likewise disposed in concentric rings. (Zittel.) 
