A MONOGRAPH OF THE EXISTING CRINOIDS 95 



Siboga station 273; anchorage off Pulu Jedan, cast coast of the Aru Islands 

 (pearl banks); 13 meters; sand and shells; December 23-26, 1899 [A. H. Clark, 1918) 

 (14, U. S. N. M., E. 448; Amsterdam Mus.). 



Aru Islands; west of Ngaiguli; 14 meters; coarse yellow sand; Dr. H. Merton, 

 February 18, 1908 [Reichensperger, 1913]. 



Aru Islands; between Batu Kapal and Meriri; 10 meters; Dr. H. Merton, March 

 30, 1908 [Reichensperger, 1913]. 



Aru Islands, near Udjir; 10-14 meters; coral rock and sand; Dr. H. Merton, 

 April 16, 1908 [Reichensperger, 1913]. 



Near Lola, northern Penambulai; 5 meters; Dr. H. Merton [Reichensperger, 



1913]. 



Thursday Island; Prof. Richard Semon [Doderlein, 1898]. 



Albany Island; H. M. S. Alert [A. H. Clark, 1913] (1, B. M.). 



Cape York, Torres Strait [Loven, 1869; Liitken, 1869; Billings, 1869; Wyville 

 Thomson, 1871-, 1872; P. H. Carpenter, 1879, 1883, 1884, 1888, 1891; Wachsmuth 

 and Springer, 1881; Perrier, 1883; Lockington, 1884; Hartlaub, 1891; Neviani, 1891; 

 A. H. Clark, 1907, 1911, 1912, 1921] (detached disk, H. M.). 



Cape York [P. H. Carpenter, 1887; refers to Challenger station 187]. 



Torres Straits; 18 meters; sand [A. H. Clark, 1913] (1, B. M.). 



Challenger station 186; Prince of Wales channel (lat. 10°30' S., long. 142°18' E.); 

 15 meters; coral mud; September 8, 1874 [von Graff, 1887; P. H. Carpenter, 1888]. 



Challenger station 187; off Booby Island (lat. 10°36' S., long. 141°55' E.); 11 

 meters; coral mud; September 9, 1874 [von Graff, 1884; P. H. Carpenter, 1884, 1888] 



(2, B. M.). 



Somerset Passage; 9-16 meters [A. H. Clark, 1913] (1, B. M.). 



Port Molle, Queensland; 22 meters; H. M. S. Alert [Bell, 1884; P. H. Carpenter, 

 1888; A. H. Clark, 1911, 1913] (1, B. M.). 



Thirteen miles northeast of North Reef, Capricorn group, off Port Curtis, 

 Queensland; 128-135 meters ; Endeavour [H. L. Clark, 1916] (1). 



Geographical range.— Northern Australia south to Shark Bay on the west and 

 Port Curtis on the east, and the Aru Islands. 



Bathymetrical range.— Littoral and sublittoral, descending to 128 (?135) meters. 



Occurrence. — Dr. H. L. Clark says that this truly magnificent comatulid is by 

 no means rare in the Broome region, but it is not so common as either Z. elegans or 

 Z. comata and prefers deeper water. Most of the specimens were dredged in 9-15 

 meters, but a very few were found on the hard sandy bottom of Roebuck Bay during 

 the extreme low tides of September 1929. 



History. — Few zoological announcements have created more general interest than 

 the description by Prof. Sven Loven in 1869 of a living cystidean from Cape York, 

 which he called Hyponome sarsi. But the interest in the new cystidean was short 

 lived for in 1872 Prof. Wyville Thomson wrote that "Hyponome sarsii appears, from 

 Professor Loven's description, to be a true crinoid, closely allied to Antedon, and does 

 not seem in any way to resemble the Cystideans." In 1879 Dr. P. H. Carpenter 

 wrote that the voyage of the Challenger had settled the question of Hyponome sarsii, 

 which was nothing more than the detached disk of a species of comatulid in which the 

 disk is plated. In 1884 Carpenter said that Hyponome sarsii is "nothing more than 



