334 
MR. W. K. PARKER MD ; PROFESSOR T. R. JONES ON SOME 
To the “Arctic” and “Boreal” faunge the “ Virginian ” is allied by Dentalina paupe- 
rata , Cristellaria cult rata, Globigerina bidloicles, Bidimina Pyrula, VirguiinaSchrdbersii, 
V. squamosa, and Quinqueloculina Semimdum. 
Besides Foraminifera, the North- Atlantic soundings obtained by Commander Dayman 
have yielded us the organic and inorganic materials indicated in Tables VI. & XII. 
Mr. F. C. S. Roper, F.L.S., F.G.S., has obliged us with the following Note on the Dia- 
tomacese *. 
“3 Carlton Villas, January 7, 1864. 
“•My dear Sir, — I regret that I have not before this replied to yours of the 24th ult., relating to the Sound- 
ings I received from Mr. Parker. I mounted slides from each packet, hut found that they contained so few 
Diatoms, that I only made cursory notes upon them; and, on referring to these, find they were almost confined 
to specimens of Coscinodiscus, as you will see hy the list enclosed. These Atlantic soundings are so transparent, 
and the siliceous matter apparently so wasted, that it is very trying to the eyes to hunt over a succession of 
slides with high powers, to seek the few Diatoms contained in them ; and I was compelled from, the fear of 
injury to my sight to abstain from an exhaustive examination of them. 
“ Believe me very truly yours, 
“ F. C. S. Roper.” 
No. 45. Fragments of Coscinodisci. 
No. 69. 
No. 73. Large Coscinodiscus. 
No. 79. 
No. 86. Coscinodisci, a few. 
The remainder little else than Foraminifera 
and sand. 
Sands. 
No. 47. Coscinodiscus ? sp„ 
Rhabdonema. 
Grammatophora marina. 
No. 59. A few Coscinodisci. 
No. 64. „ 
The remainder nearly all sand with Fora- 
minifera. 
The following Entomostraca from these soundings have been determined by Mr. G. S. 
Brady. 
Cythere scabra, Munster ; 2050 fathoms. Lat. 52° 16' N., long. 16° 46' V7. 
rhomboidea Brady ; 43 fathoms. Lat. 51° 57' N., long. 10° 30' W. 
mamillata, Bracly ; 110 fathoms. Lat. 52° 59' N., long. 14° 10' "V. 
Bairdia Bosquetiana, Brady ; 470 fathoms ; off Ireland. 
Clays. 
No. 30. A few fragments of Coscinodisci. 
No. 31. 
No. 61. A large Cocconeis. 
A few Coscinodisci, apparently 0., radiatus. 
A Rhabdonema. 
No. 63. A few fragments of Coscinodisci. 
No. 85. Coscinodiscus. C. perforatus ? 
No. 100. Coscinodiscus eccentricus. 
Coscinodiscus radiatus. 
Or thosira . marina . 
Actinocyclus undulatus. 
Pleurosigma transversale ? 
No. 41. Coscinodiscus radiatus. 
A Nitzschia. 
A Rhabdonema. 
5. Besides the description and illustration of the Foraminifera obtained from the four 
sets of soundings and dredgings above mentioned, and the tabulation of the species and 
varieties, showing their depth of water and relative size and abundance, we also point 
* The Diatoms found in the “ Virginian Province ” are noticed hy Professor Bailey in the memoir above 
referred to. 
