1908-9. } THE GEOLOGICAL CONNEXIONS OF THE CARIBEAN REGION. 387 
Species 4. HALIOMA Ehrenberg. Ibid. Taf. XXVI, F. 1-3. 
This probably carries the whole of the Haliomatina. 
Actinolithus Ehrenberg. Ibid. Taf. I, Fig. 17-21 
These are the broken-off spines of the radiolaria, of which 
immense numbers are found in the oceanic beds of 
Jamaica. 
Notes on some of the fossil foraminifera of Trinidad as bearing on the 
Pacific connexions of the Caribean region. \ have before noticed some 
singular facts in the distribution of the foraminifera of the oceanic beds 
of Trinidad (Geol. Mag., Lond., 1904, page 247). Among these is the 
absence of Pulvinulina menardi and Virgulina from these beds. It is true 
that in one of my lists I included the name of Pulv. menardi, but it was 
an error, and the specimen was rea!ly a small example of Pulu. canariensis 
from the radiolarian mar]. Pu/v. menardi and Virgulina are equally absent 
from the oceanic beds of Barbados, and it is singular that Ordudzna is not 
recorded from the latter. Neither Orbulina nor Globigerina is included in. 
previous lists from the pteropod marl of Jamaica, but I have found both 
with a large number of other foraminifera as shown in the list given 
above. 
Planorbulina larvata (Chal. Rep. page 658, Pl. XCII, F. 5-6, Parker andi 
Jones, Phil. Trans., 1865, Pl. XIX, F. 3). This is found abundantly in 
shallow water beds in Trinidad. Parker and Jones record it from: 
“Indian Sea.” Recent specimens supplied me by Mr. Earland came 
from Java Sea, 45 fathoms. According to the “Challenger” Report it 
occurs at seven stations in the South Pacific, 15-210 fathoms. It is also: 
known from Honolulu and China Sea. 
Pulvinulina favus Brady (Chal. Rep. Pl. CIV, F. 12-16). On the 
strength of one or two badly preserved specimens I included the name of 
this in my list of 1892. Having lost these I dropped the name, but in: 
1906 I found two or three well preserved specimens in the Naparima: 
oceanic beds. Brady (Chal. Rep., page 702) says it is exclusively a Pacific 
species, and but for a few specimens found at about 8° N. it might be said: 
to be peculiar to the South Pacific. Its bathymetrical range extends. 
from 1,375 fathoms to 2,600 fathoms. The original description of the 
species was based on specimens from the chalk of New Britain (Geol. 
Mag., 1877, page 535). 
Nodosaria abysorum. Though it is probable that there are not 
really more than about a dozen or so of true species of nodosaria, yet 
