JAKElllO TO THE COAST OF PEilU. 189 
observations at noon 42° 45' S. Evening clear, occasionally 
squally. Temperature of the air 55°, humidity 9°.5.*" 
On the 29th, several penguins {Aptenodytes) were seeny 
but Mr Jameson does not mention what species. Lat^ 
43°35\ Long. 58° 50^ 
30th. " Temperature of the ocean 48°.8. Still passing 
quantities of floating Fucus, Albatrosses, and three differ- 
ent species of petrels {Procellari(£)^ flyii^g about." Lat. 
44° 31\ Long. 59° 44'." 
On the 2d April they " passed much Fucus^'' and on 
fhe 3d in Lat. 48° 50', Long. 62' ]', " sounded in 80 
fathoms, fine green sand; saw many whales, and great 
numbers of oceanic birds, apparently petrels." 
On the 5th they were in the parallel, and a little west,, 
of Falkland Islands, and saw many petrels. 
6th. A " light air from the NNE., with a clear atmo- 
sphere. Sea very smooth, and teeming with vast numbers 
of a species of cancer (^Asiacus)^ of a dark-red colour,, 
and about an inch in length. This remarkable appearance 
we observed for about an hour, the vessel sailing at the rate 
of two knots." Lat. 52<^ 25'. Long. 64^ 9'. Mr Jameson 
has added on the margin of his journal a sketch of this 
species of Cancer y from which, if correct, it appears to* 
have only six legs : in this respect it differs essentially, not 
only from the reduced genus Cancer of Leach, but from 
every division and genus in the order Macroura of the 
subclass Malacostraca in the Annulos^e. All the known 
divisions of the Macroura have at least ten legs : to this 
order it must, however, certainly be referred, its tail being 
furnished with appendices at the extremity. 
On the 7th, At 8 a. m.. Cape St John, the most east- 
erly point of Staten Island, bore SSE., distant 15'. The 
northern coast of this island, about New Year's Harbour, 
is very mountainous, with peaked summits. Although late 
in the season, no trace of snow could be observed ; and in- 
deed, the sides of the mountains exhibited in many places 
