APR 10 1917 
THE OTTAWA NATURALIST. 
Vor. XIX. | OTTAWA, SEPTEMBER, roo. No. 6 
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~ A NATURALIST IN THE FROZEN NORTH. 
By ANDREW HALKETT. 
(Continued from page 109.) 
Of Gastropods may be mentioned Periwinkles ( Lzttorina 
palliata), Whelks ( Buccinum ), and the egg-capsules of Whelks, 
Limpets (Acmea festudinalis) found in the gizzards of Eiders 
and, at the shore at low-tide, valves of Chitons ( Zonzcella mar- 
morea ), also found in the gizzards of Eiders, and certain Nudi- 
_ branchs. 
Of bivalve mollusks, Cockles (Cardium islandicum), and 
specimens of various species which bear no English names, were 
dredged, and dried valves of Mussels (Mytilus edulis) were found 
lying on the ground at Wakeham Bay. 
Fragments of a few species of Polyzoans were dredged. 
Of Annelids, certain specimens were collected in muck at Ful- 
lerton. The tubes of those worms and the worms themselves are 
beautiful objects of exquisite pattern. The tubes are shaped like 
the shell of Dentalium, and are composed of very fine grains of 
quartz or other substances of an archaic nature, which the anne- 
lids skilfully cement together. Specimens of Spzrorbzs were found 
on sea-weed, shells, etc., and numerous annelids were dredged. 
Mention may also be made of fresh-water annelids, including a 
very small kind of leech, collected at Fullerton. 
Of Echinoderms, Sea Urchins ( Strongylocentrotus drobacht- 
ensts ), a few Star-fishes of the genera Solaster and Crossaster, and 
Sea Cucumbers ( Pentacta) were found among sea-weed at the 
beach at Port Leopold, North Summerset. A few tiny specimens 
of typical Star-fishes ( Asterzas ), specimens of Brittle- or Serpent- 
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