Botany and Zoology. 432 
xed or sessile, but not cemented at their base like the 
testaceous annelids. The only mode of attachment appears to be a 
thin film of sarcose. The Lobatula of Fleming, and the Rosalia and 
Planorbulina of D’Orbigny belong to this division. 
Dr. Carpenter considers the Foraminifera to be phytophagous, in 
Consequence of his having detected in some specimens, by the aid of 
the microscope, fragments of Diatomacee and other simple forms of 
vegetable life. But asI have dredged them alive ata depth of 108 
marine animals. In the gulf of Genoa! have found (as might have 
been expected) species identical with those of our Hebridean coast, 
and vice versd. 
n common with Dr. Carpenter, I cannot help deploring the excessive 
multiplication of species in the present day, and I would include in this 
Tegret the unnecessary formation of genera. Another Linnzus is sadly 
wanted to correct this pernicious habit, both at home and abroad. ~*~ 
_ The group now under consideration exhibits a great tendency to va- 
Nation of form, some of the combinations (especially in the case of 
: Marginulina) being as complicated and various as a Chinese puzzle, 
It is, I believe, undeniable, that the variability of form is in an inverse 
ratio to the development of animals in the scale of Nature. 
Having examined thousands (I may say myriads) of these elegant 
organisms, I am induced to suggest the following arrangement :— 
1. Lagena (Walker) and Entosolenia (Williamson). 
2. Nodosaria and Marginulina (D’Orb.), &c. . 
3. Vorticialis (D’Orb.), Rotalia (Lam.), Lobatula (Flem.), Globi- 
£erina (D’Orb.), &c. 
4. Tevtularia (Defrance), Uvigerina (D’Orb.), &c. 
5. Miliola (Lam.), Biloculina (D’Orb.), &c. 
This division must, however, be modified by a more extended and 
Cosmopolitan view of the subject, as I only profess to treat of the Brit- 
Sxcon Serrus, Vol. KXI, No. 63.—May, 1856. 55 
