436 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



The specimen from the Danish expedition to the Kei Islands station 90 is very 

 small, with 3 + 3, 3 + 3, 1 + 7, 6 + 7, 1 + 5 = 39 arms, which are 60 mm. long. Of the 

 7 IIBr series, 5 are 4 (3 + 4) and 2 are 2. 



The specimen from Tajando Island, which appears to be of this species, has 

 10 arms about 50 mm. long. 



The individual from Siboga station 302 has 19 arms about 90 mm. long. Three 

 of the IBr series bear a single IIBr 4 (3 + 4) series, and each of the latter bears 

 2 IIIBr 2 series. The arms are excessively delicate and attenuated and greatly 

 elongated, and the pinnules are exceedingly slender and hairlike. The distal ends 

 of the brachials and pinnulars, especially the latter, are exceedingly spinous. The 

 distal pinnules are 9 mm. long. The dorsal interradial perisome is heavily plated, 

 and this plating is continued on to the ventral surface of the disk in the form of 

 deep crescents which extend inward in the interambulacral areas. The plates of 

 the inner portion of these crescents are thickly studded with long sharp spines. 

 The anal tube is completely plated, the plates bearing numerous long spines. The 

 mouth is central and the anal tube subcentral. 



As described by Dr. H. L. Clark, the specimen from off Ellison Reef has 21 arms 

 which are from 75 to 80 mm. long, and no cirri. Four IIIBr 2 series are present, 2 of 

 these being on a single postradial series. The color is light brown. Doctor Clark 

 remarked that the whole appearance of this specimen is much more delicate than that 

 of Comatella, Comatula, or Comanthus. 



Localities. Siboga station 37; Sailus ketjil, Paternoster Islands, north of Sum- 

 bava, Lesser Sunda Islands; 27 meters and less; close to the reef; coral and coral sand; 

 March 30-31, 1899 [A. H. Clark, 1918] (2, U.S.N.M., E. 477; Amsterdam Mus.). 



Danish expedition to the Kei Islands; Dr. Th. Mortensen; station 90; Sebesi 

 Strait, between Sumatra and Java; 36 meters; hard bottom; August 1, 1922 (1). 



Danish expedition to the Kei Islands; Dr. Th. Mortensen ; eastern side of Tajando 

 Island; 11 meters; coral; April 6, 1922 (1). 



Siboga station 302; off the southwestern end of Timor Gat. 10 27' 54" S., long. 

 123 28' 42" E.); 216 meters; sand and coral sand; February 2, 1900 [A. H. Clark, 

 1918] (1, Amsterdam Mus.). PI. 52, fig. 156. 



Off Ellison Reef, outer Great Barrier Reef, Queensland; 9-27 meters; August, 

 1924 [H. L. Clark, 1926]. 



Albatross station 5108; China Sea, off southern Luzon, Philippines; Corregidor 

 Light bearing N. 39 E., 22.5 miles distant (lat. 14 05' 05" N., long. 120 19' 45" E.); 

 24/meters; bottom temperature 26.67 C.; coral bottom; January 15, 1908 [A. H. 

 Clark, 1909, 1918] (1 U.S.N.M., 25469). PL 52, fig. 155. 



Geographical range. From the Sunda Islands and northern Australia to the 

 Philippines. 



Bathymetrical range. Sublittoral; from 24 (?9) to 216 meters. 



Thermal range. One record, 26.67 C. 



