I860.] JONES AND PARKER FORAMINIFERA. 293 



E. Forbes and Capt. E. Spratt, also with shell-sands from Leghorn 

 and Venice by Mi". W. J. Hamilton, and with other shell-sands from 

 both sides of Italy by Prof. Meneghini and the Marchese Carlo 

 Strozzi (through the zealous kindness of Dr. H. Falconer), with 

 sponge-sands from Crete and elsewhere (communicated by friends), 

 and we have obtained other like material from various sources. We 

 have thus been able to work out a very large series of the Mediter- 

 ranean Foraminifera. 



The authors already mentioned, as well as Defrance and others, 

 have also described a large number of fossil Foraminifera, obtained 

 from the Tertiary deposits of Tuscany, Piedmont, and other countries 

 bordering the Mediterranean. These bear a close relation to the 

 recent forms of the same area ; and towards the elucidation of their 

 affinities, we can now bring forward the results of a careful exami- 

 nation of an extensive series of the fossil Foraminifera of the Medi- 

 terranean region, either supplied to us by some of the friendly hands 

 above referred to, or obtained from the Museum of this Society and 

 other sources, especially (in the case of the Malaga clays) through 

 Professor Anstcd. We have also been favoured by Dr. Wilhelm 

 Haidinger with a large quantity of the Nussdorf Marl ( Amphistegina- 

 bed) from the Vienna Basin ; and from Baljik (on the Black Sea) 

 we have received, through the hands of Capt. Spratt, a most inter- 

 esting sample of a Tertiary deposit which affords marked Khizopodous 

 alliances with the so-called Miocene fauna of the Vienna basin and 

 the Pliocene fauna of Mediterranean Tertiaries. 



We propose to arrange in a Synoptical Table the species and 

 varieties of Fortiinin'ifra which we have found in the gatherings, 

 dredgings, and soundings brought from several (26) localities of 

 which we have definite information ; and in many cases the shells 

 obtained at different depths, or in distinct sea-zones, in one locality 

 will be discriminated, on account of the importance arising from the 

 variability of a given species under different conditions of depth 

 and sea-bottom. We follow the same plan with the fossil forms ; in 

 some instances the different beds of the deposits being treated sepa- 

 rately. In every case where we offer tabulated results we fee] 

 satisfied of having had at our command a sufficient quantity of 

 material to afford trustworthy evidence. 



We prefer to tabulate the fossil Fbramznifera of the Vienna basin 

 from D'Orbigny's beautiful Rfonograph, and from the elaborate 

 Memoirs of Czjeck and Reuse, not yet having had time to do justice 

 to the valuable Viennese material suppliedfusby Dr. Maiding r. 



With respect to the nomenclature adopted in our Table, we have, 

 in tlie first place, been careful to eliminate all unnecessary binomial 

 terms, such as duplicate names, or names given to but slightly varied 

 individuals; and at the Bame time we have enumerated many well- 

 marked varieties in each can f their value as indications 



■ if peculiar conditions of habitat ; and because, many of them pre- 

 senting at firal sight striking differences of form, size, and orna- 

 mentation, and being easily mistaken t'<>r types of distinct Bpecifii 

 groups, thej hav< acquired an imp in the eyes of Eoologist 



