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NATURAL HISTORY MISCELLANY. 383 
ZOOLOGY. 
ORTH ATLANTIC DREDGING ExPEDITION.— On page 278 (paragraph 
next to last) of the July number of the NATURALIST, reference is made to 
deep sea-dredging by Dr. Carpenter and Wyville Thompson, of England, 
a government steamer having been placed at their disposal for the pur- 
pose. Upon the back of a letter recently received from my friend Dr. P. 
P. Carpenter, of Montreal, he writes that ** Buccinum undatum was found 
living at a depth of 1300 fathoms!! by my nephew and J. G. Jeffreys, on 
H.M.ship Porcupine." The donkey-engine was used to hoist the dredge. 
pe 
at a he eight of over 18000 feet, and scientific research may yet show life 
from an equal depth below the sea-level.— ARNS. 
PARASITES OF AsCIDIANS.— In the Ascidians of Northern Europe a 
great number of — Crustacea, mostly small Entomostracas, have 
been observed. Some of these are of peculiar interest, but in this coun- 
try very little ^ an has been devoted to this subject. In dissecting 
cean, not yet determined specifically. Its length is about a quarter of an 
inch. Doubt btless many other species of Crustaceans might be found by 
carefully tesis this and other common Ascidians. Dr. Meine in 
his “ Shells of New England," p. 12, observes that in Europe t s 
or Pone CModiolaria) have the habit of burrowing in the es és Asci- 
S, while on this coast imr same species do not have this habit. We 
found, however, at Eastport last season, a specimen of Ascidia m 
with a sm e specimen R yain discors completely embedded in 
test. — A. E. VERRML. 
LABRADOR Duck. —In the August (1868) N«runarisr, A.R. Y. mentions 
that the Pied or Labrador duck, was shot on Long Island last winter. 
very Interesting bird to the Min from the fact of its being so rare, 
I had almost begun to think the bird had left us, as I had not heard of 
there C coast, from Delaware to Labrador; and in the New York market 
Would at times be dozens of them; and then for a few years not 
