A MONOGRAPH OF THE EXISTING CRINOIDS 369 



Mjoberg's station 12; Cape Jaubcrt, 45 miles westsouthwest; 20 meters; July 

 20, 1911 [Gisl6n, 1919]. 



Mjoberg's station 5; Cape Jaubcrt, 42 miles westsouthwest; 12.7 meters; July 

 5, 1911 [Gisl^n, 1919]. 



Mjoberg's station 2; Cape Jaubert, 42 miles westsouthwest; 21.3 meters; May 

 30, 1911 [Gisl^n, 1919]. 



Alert; Dundas Strait, between Melville Island and the Coburg peninsula, north- 

 western Australia; 31 meters; mud [Bell, 1884; A. H. Clark, 1913] (2, B. M.). 



Dimes Island, New Guinea [A. H. Clark, 1913] (1, B. M.). 



Murray Island, Torres Straits [A. H. Clark, 1911] (13 U.S.N.M., 36157; 

 Austr. M.). 



Mer, Murray Islands, Torres Straits; H. L. Clark, October, 1913 [H. L. Clark, 

 1915, 1921] (226, M. C. Z., 561, 562, 564-566). Same, western reef, near the northern 

 end; September 24-26, 1913 [H. L. Clark, 1915, 1921] (20, M. C. Z., 519). Same, 

 southeastern reef [H. L. Clark, 1915, 1921] (25, M. C. Z., 518). Same, south reef; 

 September 29-30, 1913 [H. L. Clark, 1915, 1921] (8, M. C. Z., 517). 



Alert; Torres Straits [Bell, 1884; A. H. Clark, 1913] (1, B. M.). 



Off Ellison reef, outer Great Barrier reef, Queensland; 9-27 meters; Surg. Lieut. 

 Comdr. W. E. J. Paradice, E. A. N., August, 1924; H. M. S. Geranium [H. L. Clark, 

 1926]. 



Outer Great Barrier reef, between lat. 17° and 19° S.; exposed reefs at low tide; 

 Surg. Lieut. Comdr. W. E. J. Paradice, R. A. N.; 1924; H. M. S. Geranium [H. L. 

 Clark, 1926]. 



Port Denison, Queensland [A. H. Clark, 1911] (1, U.S.N. M., 36156). 



Australia (probably Western Australia); Preiss [J. Muller, 1843, 1849; P. H. 

 Carpenter, 1888; Dujardin and Hupd, 1862; A. H. Clark, 1910, 1912] (1, Berl. M., 

 1049). PI. 39, fig. 108. 



Australia; P^ron and Lesueur, 1803 [P. H. Carpenter, 1879; A. H. Clark, 1911] 

 (1, P. M.). Same [A. H. Clark, 1913] (1, B. M.). 



No locality [A. H. Clark, 1911] (1, Austr. M.). Same [A. H. Clark, 1913] 

 (1,B. M.). 



Erroneous locality. — Northwestern Australia; 36-66 metere [A. H. Clark, 1911]. 



Geographical range. — From the Philippines, the China Sea, and Singapore to 

 Australia, southward to between Fremantle and Geraldton, Western Australia, 

 and Port Molle, Queensland. 



Bathymetrical range. — From the shore line down to 93 meters ; the average of 29 

 records is 27.1 meters. This species is especially characteristic of the region just 

 below the low-water mark and the immediately adjacent sublittoral zone. 



Occurrence. — Dr. Hubert Lyman Clark noted that this species is exceedingly 

 common at Mer, in the Murray Islands, in all sorts of situations, some of which are 

 quite unlikely places for a comatulid. It was first noted among seaweed and rocks 

 at the edge of the reef flat near the northern corner of the island on the west side. The 

 individuals found here, where conditions seemed unfavorable to echinoderms and few 

 occurred, were all small, rarely more than 90 mm. across when fully expanded, and 



