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PROCEEDINGS OF THE NATIONAL MUSEUM 



Table 2. — Summaries of the hydrogravhir. data and the Labrador polychaete stations 

 upon which they are based. {See fig. 1 for station locations) 



Permanent High 

 Arctic 



High Arctic with 

 summer warming 



III 



Special conditions of temperature and 

 dilution in Greater Lake Melville 



Estuary 



(a) 



Permanent High 

 Arctic but not 

 quite as cold; 

 higher salinity 



(b) 



Mostly above 0° 

 C; lower salinity 



Bottom temperature 

 in° C. 



Depth in fathoms. 

 Salinity in "%o 



Stations: 



Seven Islands Bay. 



Hebron Fjord 



Okakarea 



Nainarea 



Davis Inlet--. 



Kaipokok Inlet 



Ironbound Islands. 

 Hamilton Inlet 



Mostly -1.8 



Range: -1.85-0.0.. 



Mostly 30-50 



Range: 15-125 



Mostly 32 



Range; 30.68-33.12. 



31,33, 41 



10, 11, 12, 13, 14, 74. 



49, 50 



7, 8, 9, 19. 



Mostly -l.G-6.0- 



Range: -1.8-12.0. 



Mostly 4-40 



Range: 0-60. 



Mostly 30-32 



Range: 26-32.3... 



30 



18, 70, 71. 



72, 73, 75, 76, 77. 



51, 62, 64, 66 



20 



Mostly -0.&-0.0. 

 Range: -1.2-1.0.. 



Range: 30-100 



Mostly 28 



Range: 26.5-28.85. 



Mostly 0.0-2.0. 



Range: -0.6-8.0. 

 Mostly 15-30. 

 Range: 6-40. 

 Mostly 21-25. 

 Range: 8-26. 



23, 24, 27, 42, 43, 

 44, 52, 54, 58, 61. 



Greater Lake Mel- 

 ville Estuary. 



Bt. Lewis Inlet 



Strait of Belle Isle. 



28, 29, 34, 35, 36, 

 37. 39, 57, 63. 



32, 38. 40, 47, 48, 53, 

 65, 59, 60, 67, 68. 

 78, 79. 



5, 6, 46. 



16, 21, 45, 56 



1, 2, 3. 4. IS, 17, 22, 



25, 26. 



The hydrographic distribution of the 65 polychaete species in the 

 Blue Dolphin collections from Labrador (not mcluding Harmothoe 

 impar and Polyphysia crassa from the Owen Bryant collections from 

 Labrador, and Nereis virens from Newfoundland only) are shown in 

 table 1. Of the 44 species found only along the coast, inlets, and 

 fjords (I or II or both, not in Lake Melville Estuary), 14 species 

 were found only in I, 22 species only in II, and 8 species were in 

 both I and II. Of the eight species found only in the Greater Lake 

 Melville Estuary, three {Phyllodoce groenlandica, Paranaitis kos- 

 teriensis, Ephesia gracilis) were only in III (a), two (Antinoe sarsi, 

 Brada villosa) only in Ill(b), and three {Nereis zonata, Aglaophamus 

 malmgreni, Scalibregma infiatum) were in both III (a) and (b). Of 

 the 13 species found in both the outer coast as well as in the Greater 

 Lake Melville Estuarj^, three (Antinoe badia, Harmothoe extenuata, 

 Pista flexuosa) were in all four areas (I, II, III (a), and 111(b)); 

 three (Pista maculata, Leaena abranchiata, Branchiomma injarcta) in 



