8. Fragilaria constricta, Ehrb. Kiltz. I. c. p. 46. t. 29. f. 25, c.
Hab. Falkland Islands ; on marine Conferva, Lesson.
Found in the volcanic tuff of the Rhine, and in Mexico.
9. Fragilaria rhabclosoma, Ehrb. F. capreina, Kiitz. p. 45. t. 36. f. iii.
Hab. Falkland Islands ; on marine Conferva, Lesson.
A frequent inhabitant of pools and ditches in England, and many other parts of the world, including Asia, Africa, America and the South Sea Islands. In the sand-hills of Patagonia, and in the volcanic tuff of the Rhine.
10. Fragilaria Trachea, n. sp. Ehrb. Schrift. Berl. Mad. I. c.
Hab. Falkland Islands; on marine Conferva, Lesson.
11. Fragilaria Ventriculus, n. sp. Ehrb. I. c.
Hab. Falkland Islands ; on marine Conferva, Lesson.
3. MELOSEIRA, Ag.
1. Meloseira n. sp. ? fibs moniliformibus tenuissime striatis pedunculo gelatinoso affixis, frustuhs per paria coadimatis, junioribus sphsericis demum compressis, apicibus utrinque convexis. Thwaites, MS.
Hab. Kerguelen's Land ; in the sea.
M. fflo&iferce, Harv. simillima, sed frustulis adultioribus semper compressis differt. Fila striata ut in M.globifera. Thwaites, MS.
4. PYXLDICULA, Ehrb.
1. Pyxidicula dentata, n. sp. Ehrb., Schrift. Berl. Akad. May, 1844.
Hab. Victoria Barrier ; in Pancake-ice.
2. Pyxidicula Hellenica, Ehrb. I. c.
Hab. Victoria Barrier ; in Pancake-ice. Graham's Land; in mud from 270 fathoms (doubtful as to species).
This has been found fossil in Bermuda, the iEgean Sea, and Maryland, U.S.
3. Pyxidicula n. sp. ? Ehrb. I. c.
Hab. Victoria Barrier; in mud from 190 fathoms.
4. Pyxidicula sp. ?
Hab. In the stomachs of Salpa, Lat. 66° S. Long. 157° W.
5. HEMIZOSTER, n. g. Ehrb.
1. Hemizoster twbidosus, Ehrb., Schrift. Berl. Akad. May, 1844.
Hab. Victoria Barrier and Land; in Pancake-ice.
