12 On the Foraminifera of America and 
Another result is that in regard to the multiplicity of species 
met with in Cuba. No other place, with exception of the Ad- 
riatic Sea, can be compared to it. Cuba has no less than one 
hundred and eighteen species, or a tenth part of the total 
amount known to the author. 
The Foraminifera of the Canary Islands, forty-three in 
number, having been investigated from too limited materials, 
we may suppose that a much larger number will yet be dis- 
covered. Inregard to their geographical distribution, the fol- 
lowing conclusions have been deduced: The Foraminifera of 
the Canary Islands, which are common also to France, are seven, 
and form nearly the sixth part of all the species. They may 
be divided into three series according to their mode of occur- 
rence, viz., 1. On the coasts of the ocean alone; 2. on the 
coasts of the Mediterranean ; and, 3. on the coasts of the ocean 
and of the Mediterranean. Of the first section we have no 
species ; of the second six; Orbulina universa, Globigerina 
bulloides, Planorbulina vulgaris, Truncatulina variabilis, and 
Tertularia sagittula ; of the third only one, Truncatulina lo- 
bata. 
Hence it appears, that, with the exception of the Truncatu- 
lina lobata, which is less dependent on temperature, as it oc- 
curs towards the North Pole, all belong to the Mediterranean 
Sea. We may, therefore, conclude that the Foraminifera found 
in the Canary Islands and on the coasts of France, live in de- 
pendence on the zone adapted to them, as the Mediterranean 
is warmer than belongs to its latitude, owing to its being shel- 
tered from the northern currents. 
The species belonging to the Canary Islands which occur 
in other places are four, Orbulina universa, Lingulina carinata, 
Planorbulina vulgaris, and Rosalina valvulata. These live also 
in the Antilles, and hence appear to be peculiar to tropical re- 
gions, or they are transported by winds or vessels to the Ame- 
rican coasts. 
There is another division of the species of the Canaries, viz., 
those which occur likewise in a fossil state. These are six in 
number, of which five, Orbulina universa, Lingulina carinata, 
Globigerina bulloides, Truncatulina lobata, and Textularia sa- 
gittula, occur in the subapennine tertiary strata of Italy, and 
