110 TRANSACTIONS OF THE [MAR. 17, 
or external features from the prevalent type of this genus in the 
modern ocean. Some show traces of an oral opening. 
Sculpture. A strong lens develops a pitted surface on these 
fossils. 
Size. Diameter about + mm. 
Horizon and locality. The olive green shales of Div. 1., Band 
b,at Hanford Brook, both in the shaly matrix and in phosphatic 
nodules. Apt to occur on certain layers, but not generally dif- 
fused through the shale. 
ORBULINA (?) oVALIs, n. sp. Pl. L., fig. 2. 
See ‘“‘ Phosphate Nodules ” Pl. 1. Fig. 20. Pl. 2. Fig. 7. 
A small species of the size of O. ef. universa but of different 
form. The tuberculation is very fine and there is a trace of an 
orifice at one end. 
Size. Length about #mm. Width about $ mm. 
Horizon and locality. As the preceding. Scarce. 
ORBULINA INTERMEDIA, n. sp. PI. I., fig. 3. 
This species differs from O. cf. universa in its larger size, and 
also in frequently having ridges or rugosities on its surface. 
These ridges often begin near a small depression on the surface 
of the shell, supposed to be the mouth. 
Sculpture as in O. cf. universa. 
Size. Diameter 1 to 1} mm. 
Horizon and locality. As the preceding two, but not of 
such common occurrence as the first. 
ORBULINA (?) INGENS, n. sp. Pl. L., fig. 4. 
Differs only in size from the two preceding, and is not so 
common. 
Sculpture. It appears to have large pores scattered over the 
surface as well as the numerous, small, closely set pores. Some 
examples have ridges and inequalities on the surface as in the 
preceding species. 
Size. Diameter 13 mm. 
Horizon and locality. As the preceding. 
The size of the the species leads one to suspect that it may 
be a globigerine form in which the primary cells are entirely 
enveloped by the final cell, as in some forms described under 
Globigerina. 
