TRANSACTIONS OF THE SECTIONS. 101 
for the separation of recent Foraminifera from bulky material, the author proceeds to 
enumerate and describe several species not before recorded as British, which, with 
some others not yet satisfactorily determined, had resulted from the examination of 
dredgings from various parts of our coast. 
Experience showed that too great dependence should not be placed upon any 
single mode of treating foraminiferous sand ; that, whilst difference of specific 
gravity might be taken advantage of, by floating and other means, for the separa- 
tion of the more delicate forms, it was almost useless so far as concerned the porcel- 
lanous and arenaceous groups. In the manipulation of these the best assistance 
seemed to be derived from the use of wire-gauze sieves of different degrees of 
fineness. 
The Shetland material, from which most of the specimens alluded to inthe paper 
were derived, was dredged by Mr. J. Gwyn Jeffreys and Mr. E. Waller, at depths 
varying from 65 to 85 fathoms. That from the Irish Sea was from the Admiralty 
soundings, off Laxey, communicated by Mr. E. C. Davison, depth 15 fathoms. The 
sand from the Northumberland coast was taken from 35 fathoms, near Holy Island, 
during the recent dredging-operations conducted under the direction of the British 
Association Dredging Committee. 
The following is a list of the species whose occurrence in the British seas is 
noted for the first time :-— 
Biloculina sphera, D’ Ord. Shetland, very rare. 
Biloculina coutraria, D’ Orb. Shetland, very rare. 
Triloculina tricarinata, D’ Orb. Shetland, very rare. 
Quinqueloculina pulchella, D’ Ord. Shetland, only a single, somewhat mon- 
strous specimen found, 
Lituola scorpiurus, Montfort. Shetland, rather rare. 
Lagena distoma, P. § J. Northumberland coast, rare; Shetland, 
very rare. 
Glandulina levigata, D’ Orb. Shetland, very rare. 
Bigenerina digitata, D’ Orb. Shetland, rare. : 
Bolivina punctata, D’ Ord. Shetland, very small feeble specimens, not 
uncommon. 
Planorbulina Ungeriana, D’Orb. Shetland, common in some localities. 
Planorbulina Haidingerli, D’Orb. Shetland, rare. 
Pulvinulina Menardii, D’ Ord. Trish Sea, rare. 
Pulvinulina concentrica, P. § J. Shetland, rare. 
Pulvinulina Karsteni, Reuss. Shetland, very small and delicate speci- 
mens, rare. 
Rotalia orbicularis, D’ Ord. Trish Sea, rare; Shetland, rare. 
Discorbina Bertheloti, D’ Orb, Shetland, rare. 
Anomalina coronata, P. § J. Shetland, common. 
Polystomella crispa, var. arctica, Shetland, common. 
1 Bilt f 
Nonionina stelligera, D’ Orb. Shetland, rare. 
On the principal Divisions of the Pacific Fauna. By W. Harper Pxasz, of 
Honolulu. Communicated by Dr. P. P. Carpenter. 
The author, having been engaged for many years, personally and by his agents, 
in making careful explorations of the marine and land faunas of various groups 
of the Pacific islands, is preparing materials for a comprehensive work on the 
subject. He desires to correspond with other naturalists who are engaged in 
similar investigations. 
He is led to the conclusion that the centre of creation for the Pacific fauna lay 
in the neighbourhood of the Philippines; one line of distribution passing in a 
northerly direction to the Hawaian islands ; another over the small islands near the 
equator ; a third, through the larger groups, in a southerly line to the Paumatus 
and Marquesas. ; 
The general elevation of land over the Pacific islands has been more regular 
than the tables heretofore made would lead us to believe. 
