PART 5 A MONOGRAPH OF THE EXISTING CRINOIDS 307 



Albatross station 3446; east of Pillar Point, Washington (lat. 4818'50" N., long. 

 12358'20" W.); 183 meters; temperature 6.95 C.; blue mud; August 27, 1891 (1, 

 U.S.N.M., 35987). 



Albatross station 3445; west of Port Angeles, Washington (lat. 4816' N., long. 

 12345'05" W.); 183 meters; temperature 6.67 C.; bottom rocky; August 27, 1891 

 (4, U.S.N.M., 35792). 



Albatross station 3464; northeast of Port Angeles, Washington (lat. 4814' N., 

 long. 12320'40" W.) ; 73 meters; temperature 8.78 C. ; bottom, gray sand and pebbles; 

 September 4, 1891 [A. H. Clark, 1907, 1915] (1, U.S.N.M., 22612). Type locality. 



Nanaimo; Ruxton Passage; about 46 meters [Berkeley, 1931]. 



Nanaimo; between Round Island and Mudge Island; about 46 meters [Berkeley, 

 1931]. 



Dr. Th. Mortensen's Pacific Expedition 1914-16; Pylades Channel, Strait of 

 Georgia, 37 meters; July 6, 1915 (1, C.M.). 



Dr. Th. Mortensen's Pacific Expedition 1914-16; Strait of Georgia; about 90 

 meters; July 7, 1915 (1, C.M.) 



Nanaimo, British Columbia [A. H. Clark, 1915; Fraser, 1918; Mortensen, 1920] 

 (2, U.S.N.M., 35857). 



Albatross station 4245; Kasaan Bay, Prince of Wales Island, southeastern Alaska; 

 center of Round Island bearing S. 10 W., 0.4 mile distant; 173-179 meters; temperature 

 9.39 C.; dark green mud, sand, shells and rock; July 11, 1903 (1, U.S.N.M., 35838). 



Loring, Revilla Gigedo Island, southeastern Alaska; shallow water; Albatross; 

 July 1, 1897 (1, U.S.N.M., 35836). 



Loring, Alaska ; deep bay, on a dogfish trawl ; about 46 meters ; Albatross; July 1 , 

 1903 (3, U.S.N.M., E. 1105). 



Southeastern side of Etolin Island, Alaska; 11 meters; Dan Brown; 1911 (1, 

 U.S.N.M., 36154). 



Albatross station 4265; off Sitka Sound, Alaska; Cape Edgecumbe bearing N. 69 E., 

 11 miles distant; 1078 meters; temperature 3.44 C.; rocky, with green mud; July 31, 

 1903 (2, U.S.N.M., 36204). 



Albatross station 3338; southeast of the Shumagin Islands, Alaska (lat. 5419'00" 

 N., long. 15940'00" W.); 1142 meters; green mud and sand; August 28, 1890 (34, 

 U.S.N.M., 35835). 



Albatross station 3210; south of Sannak Island, Alaska Gat. 5400'00" N., long. 

 16240'30" W.); 883 meters; temperature 3.61 C.; sand and green mud; May 21, 1890 

 (2, U.S.N.M., 36028). 



Geographical range. From Natividad Island, Lower California (lat. 2738'45" N.), 

 northward to the Shumagins and Sannak Island, Alaska. 



Bathymetrical range. From shallow water (the shallowest record is 11 meters) down 

 to 1252 meters; the average of 67 records is 285 meters. 



Thermal range. From 3.28 C. to 11.05 C.; the average of 35 records is 7.13 C. 



Occurrence. Judging from the great numbers sometimes brought up by the dredge 

 this species must be locally very abundant, after the manner of Heliometra glacialis. 



Prof. C. McLean Fraser wrote to me that, in the vicinity of the Pacific Coast 

 Biological Station at Nanaimo, the area so far explored in which this species is found 

 extends on both sides of the de Courcy Islands, a group of five of six islands running 

 southeast from Dodd's Narrows for a distance of several miles. They are apparently 



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