DISTRIBUTION IN DEPTH. 



431 



DREDGING PAPERS, AND RECORDS OF RESEARCHES ON 

 THE COAST OF NORWAY. 



By R. Mc Andrew, Esq, and Lucas Barrett, Esq. F.G.S, 



I, 



Date July 1st, 1855. 



Locality Tromsoe (Nordland). 



Depth Between tide mai'ks. 



Ground Rock and sand. 



Number Number 



Species. of living of dead Observations, 

 specimens. specimens 



Mya truncala 6 Many. In sand. 



Tellina incarnata ,. .. .. Many. Many. In sand. 



Astarte compi-essa 1 On sand. 



borealis 3 Many.' "* On sand. 



•Cardium edule Many. Many, In sand. 



Crenella discors M-any. Covering the under 



sides of stones. 



Acmffia testudinalis ., .. ,. Many. On rock. 



Margarita undulata 6 On weed. 



helicina 8 On weed. 



Litorina litorea Many. On rock. 



rudis Many. On rock. 



Lacuna vincta 2 On weed. 



Natica pusilla 2 On sand. 



clausa Many. On rock. 



Purpura lapillus Many. Many. On rock. 



Buccinum undatum Many. On rock and sand, 



cyaneum Many. On rock. 



Bela turricula 10 On rock. 



Doris Johmstoni 8 



(Note.) No specimens of Trochus., or Patella vulgata oecurred. 



II. 



Date July 5th, 1855. 



Locality Near Hammerfest (Finmarken). 



Depth 7 to 20 fathoms. 



Distance from shore . . . .Close to shore 

 Ground NuUipore and sand. 



Saxicava arctica ,. 4 Young. 



Mya truncata 4 3 Young. 



Thracia convexa 4 In sand. 



Tellina proxima 4' 



Mactra elliptica J 



Venus ovata 3 



striatnla Many. 



* The accented nun bers in the column of 'Mead specimens" refer to disunit^'d 

 valves of Conchifera ami Brachiopoda. 



