168 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



of each individual being in most cases surrounded 

 with masses of dark - green or greenish - brown 

 sarcode. 



Truncatulina variabilis was often found living 

 in company with. Truncatulina refulgens. It would 

 appear that these two species are to be found in 

 the living state on the ridge only. I have examined 

 upwards of one hundred samples of deposits taken 

 in the vicinity of the Faroe Channel, but I have 

 never found living specimens of these two species— 

 that is, with their shells filled with sarcode — either 

 in the warm or cold area. As • a fact, they are 

 absent from the warm area, although one or two 

 dead and decayed shells were found on the warm 

 side close up to the ridge, with a bottom tempera- 

 ture of 41°*2 F., and these I take it have been carried 

 there by the strong currents which sweep the ridge. 

 Miliolina seminulum is also found living more abun- 

 dantly on the ridge than on either side of it, and 

 in many instances was obtained firmly attached to 

 stones by the sarcode which was protruding from 

 the aperture. Of course, as might have been 

 expected, a few of the pelagic and bottom-living 

 Foraminifera were found on the ridge; but on the 

 whole they are exceedingly rare. 



On referring to the table of classification, and 

 comparing the Foraminifera obtained from both the 

 warm and the cold areas, it will be seen that the 

 Miliolinidae are strongly represented in the warm 

 area, numbering twenty-seven species, for the most 

 part very large and finely-developed specimens ; while 

 in the cold area only fourteen species are found, and 

 these are all poor, starved, and dwarfed, if we except 

 Cornuspira foliacea, which is found to attain a larger 

 size here than in any other known locality. 



The larger arenaceous types — such as Astrorhiza, 

 Syringammina (a new genus of arenaceous Rhizopods 

 described by Dr. H. B. Brady *), Saccammina, Bothy- 

 siphon, Storthosphcera, Sorosphcera, Rhabdammina r 



* Proc. Roy. Sue, vol. xxxv., p. 155, pis. ii. and iii., 1883. 



