M.E. P. Friés on the Geographical Distribution of Funyi. 269 
4. Paleoniscus ? n.sp. 
_ A single example of what appears to be another species of 
Pale@oniscus has occurred along with those described. It is 
about 8 inches long, a little more than half an inch in depth, and 
its head is 5% inch in length. It differs from the species noticed 
in having a more pointed head and a produced snout, also in 
the greater length of its dorsal, anal, and caudal fins. As it 
seems, however, to possess some points of resemblance to Pa- 
leoniscus angustus, Ag., of the Zechstein, I refram from de- 
scribing it as new until I have compared it carefully with that 
species. 
Acrolepis Sedgwicki, Ag. 
Associated with the Paleonisci there has occurred a single 
fragment of Acrolepis, apparently belonging to the species A. 
Sedgwickiu of the Marl-slate. This specimen is 7 inches long, and 
is minus head and part of tail, so that it has probably belonged 
to an individual that was little under 12 inches in length. 
Other fragments of this species have also been met with in the 
limestone above the bed containing the Paleonisci, but in a 
more imperfect state of preservation than the first. 
Besides these remains of fish, there have also been found in 
the two-feet bed first mentioned, and in the adjoining overlying 
and underlying strata, a few remains of plants. They are, unfor- 
tunately, very imperfectly preserved, and hence very difficult to 
determine. They are evidently, however, the remains of terres- 
trial vegetation ; at least, they possess character enough to show 
that they do not belong to the Algz. 
XXX.— Observations on the Geographical Distribution of Fungi. 
By M. E. P. Frres*. 
Tuer Alge and the Fungi properly so called are distinguished 
from other cellular plants by their larger size, their brighter 
colours, and by the greater variety of forms met with among 
them. These two orders of cellular plants have attracted the 
attention of observers from an early period, and were indeed 
the only Cryptogamia which at a remote period were applied to 
use ; for it 1s only within a comparatively recent date that the 
Lichens have acquired a corresponding interest: on the other 
* Translated by Dr. J. T. Arlidge, from the ‘ Annales des Sciences Natu- 
- relles,’ 1861, 4 série, tome xv. (Botanique), p. 10. The original memoir 
appeared in the ‘ Transactions of the Academy of Upsala’ for 1857, only 
a year before the premature death of the author; the French translation 
is hy Dr. W. Nylander. 
