444 BULLETIN 82, UNITED STATES NATIONAL MUSEUM VOLUME 1 



Aurora station 12; Queen Mary Land (lat. 64°32' S., long. 97°20' E.); 201 meters; 

 rock; January 31, 1914 [A. H. Clark, 1937] (8, U.S.N.M.). 



Gauss (German South Polar Expedition) ; near Gaussberg Gat. 66°02'09" S., long. 

 89°38' E.); 172-400 meters; temperature —1.85° C, salinity 337oo; March 18, 1902; 

 385 meters [A. H. Clark, 1915] (1, Berl. M.). April 4, 1902 (1, Berl. M.). May 1, 

 1902 (1, Berl. M.). May 6, 1902; 172 meters (1, Berl. M.). June 20, 1902; 385 meters 

 (2, Berl. M.). December 2, 1902; 385 meters (1, Berl. M.). December 13, 1902; 

 385 meters (1, Berl. M.). January 3, 1903; 380 meters (1, Berl. M.). January 8, 26, 

 28, 1903; 380 meters (4, Berl. M.). February 8, 1903; 350 meters (fragments, Berl. 

 M.). February 15, 1903; 400 meters (3, U.S.N.M., E. 379). 1902; 385 meters (5, 

 U.S.N.M., E. 380). 1902 (1, U.S.N.M., E. 378). 1902-03 (7 pentacrinoids, U.S.N.M., 

 E. 381). 



B.A.N.Z.A.R.E. station 105; off MacRobcrtson Land (lat. 67°46' S., long. 67°03' 

 E.); 163 mctci-s; February 13, 1931 [John, 1939] (3, B.M.; 9, Austr. M.). 



B.A.N.Z.A.R.E. station 107; off MacRobcrtson Land (lat. 66°45' S., long. 62°03' 

 E.); 219 meters; February 16, 1931 [John, 1939] (54, B.M.; 101, Austr. M.). 



B.A.N.Z.A.R.E. station 40; off Enderby Land (lat. 66°12' S., long. 49°37' E.); 

 300 meters; January 17, 1930 [John, 1939] (1, BM.; 3, Austr. M.). 



B.A.N.Z.A.R.E. station 41; off Enderby Land (lat. 65°48' S., long. 53°16' E.); 

 180-209 meters; at 200 meters, temperature —1.77° C, salinity 34.24%o; January 24, 

 1930 [John, 1939] (6, Austr. M.). 



B.A.N.Z.A.R.E. station 42; off Enderby Land Gat. 65°50' S., long. 54°23' E.); 

 220 meters; January 26, 1930 [John, 1939] (1, Austr. M.). 



Norwegia Expedition; off Crown Princess Martha Land (lat. 71°26' S., long. 

 12° W.); 220 meters; February 17, 1930 [Madsen, 1955] (Oslo M.). 



Geographical range. — Off the shores of the Antarctic continent, the Graham Land 

 peninsula, the South Shetland and South Sandwich Islands, South Georgia, Bouvet 

 and Heard Islands and Kerguelen, the type locality. 



Bathymetrical range. — From 20 to 1080 meters. 



Thermal range.— From —1.90 to +2.75° C. 



Salinity range. — From 33.82 to 34.85 parts per thousand. 



Bemarks. — Minckert's Promachocrinus vanhoffenianu^ was based upon two speci- 

 mens from the Gauss collection, both of which I have examined. It was said to differ 

 from P. kergvelensis in having the cutus segments from the fourth outward much 

 longer; in having the axillaries and second brachials longer and more slender, long and 

 shield-shaped instead of "widely rhombic" as described by Carpenter in P. kerguelensis, 

 and the bases of the post-radial series also of a more slender build; in having no lateral 

 excavation between the two elements of the IBr series; and, the most distinctive and 

 significant feature, in possessing weU-developed covering plates along the ambulacral 

 grooves, excepting those of the disk and of the proximal pinnules. 



The narrow and sharply conical centrodorsal of these specimens, the long and 

 slender axillaries and second brachials, the slender build of the bases of the post-radial 

 series, and the absence of excavation on the lateral margins of the IBr series are all 

 correlated characters, all indicatmg the immaturity of the individuals, which is further 

 attested by the comparatively long segments of the proximal pinnules. The specimens 

 which have been collected at Kerguelen, some of which have been figured by Carpenter 

 and by Hartlaub, are mostly robust and of larger size than those which were dredged 



