264 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



Pi is 7 mm. long with about 30 segments, of which 9 or 10 are involved in the 

 formation of the comb and bear teeth which in height are about equal to the width 

 of the segments bearmg them. P2 is 6 mm. long with about 26 segments, of which 9 

 bear teeth. P3 is 4.5 mm. long with about 25 segments, 9 of which bear teeth, and 

 a gonad as far as the fourth segment. The combs are confined to Pi, P2, and P3. 

 Pj is 4.2 mm. long with 13 segments, of which the 3 or 4 last bear dorsal processes. 

 The pinnule segments are broad and stout, and the most proximal are notched on 

 the distal side and somewhat widened in the distal part. The distal pinnules are 

 5.5 mm. long with 17 segments. The lower portion of the pinnules from P3 to P20 is 

 swollen through the ripening of the gonads. 



The disk is smooth, 5.5 mm. in diameter. The mouth is central. 



The specimen from Bock's station 36 has the centrodorsal 2.5 mm. in diameter, 

 with the bare dorsal pole 1.5 mm. in diameter. 



The cirri are XXII, 12, 5 mm. long (only one complete cirrus remaining); they 

 are arranged in a single row on the centrodorsal. The third cirrus segment is the 

 longest, three and one-half times as long as broad. The distal segments are short 

 and laterally compressed. The antepenultimate segment is a little longer than broad. 



The radials are visible only as small triangles in the interradial angles. The 

 IBri are very short, eight times as broad as long, basally united. The IBr2 (axil- 

 laries) are low triangular, three times as broad as long. There is a slight synarthrial 

 tubercle on the articulation between the elements of the IBr series. 



The 10 arms, all of which are broken, are about 25 mm. long; they are smooth 

 dorsally. 



The distal intersyzygial interval is 3 muscular articulations. 



Pi is about 4.5 mm. long with 26 segments, of which 9 bear teeth. P2 is about 

 3.5 mm. long with about 22 segments, of which 8 bear teeth. P3 is similar, 3 mm. 

 long. Combs are confined to Pi, P2, and P3. The distal pmnules have 13 segments. 



The disk is 3 mm. in diameter. 



The specimen from Bock's station 4 resembles that from Bock's station 37. 

 It was found within a calcareous sponge. The cirri are 5.5 mm. long with 12 seg- 

 ments, of which the antepenultimate is as long as broad. The arms are about 30 

 mm. in length. Pi, P2, and P3 bear combs. 



Localities. — Siboga station 302; near Rotti, southwest of Timor (lat. 10° 27' 54" 

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

 Clark, 1918] (2, Amsterdam Mus.). 



Siboga station 294; south of western Timor (lat. 10° 12' 12" S., long. 124° 27' 

 18" E.); 73 meters; soft mud with very fine sand; January 23, 1900 [A. H. Clark, 

 1918] (2, Amsterdam Mus.). 



Danish Expedition to the Kei Islands; Dr. Th. Mortensen; station 4; 250 meters; 

 sand; April 3, 1922 (1); station 46; 250 meters; mud; May 2, 1922 (3). 



Albatross station 5629; Patiente Strait, between Halmahera and Batjan, Moluc- 

 cas; Doworra Island (S.) bearing S. 62° W., 6 miles distant (lat. 0° 50' 00" S., long. 

 128° 12' 00" E.); 375 meters; temperature 28.34° C; coral sand; December 2, 1909 

 [A. H. Clark, 1918] (1, U.S.N.M., 36019). 



Albatross station 5162; Tawi Tawi group, Sulu (Jolo) Archipelago; Tinagta 

 Island (S.) bearing N. 71° W., 5.4 miles distant (lat. 5° 10' 00" N., long. 119° 47' 



