A MONOGRAPH OF THE EXISTING CRINOIDS 131 



distal pinnules are 6 mm. long, with about 20 segments. The proximal segments are 

 distally somewhat serrate and broadened. The disk is incised and measures 13 mm. in 

 its longest and 8 mm. in its shortest diameter. It bears fine calcareous granules. 

 The mouth is central. 



A second specimen from Bock's station 59 has the centrodorsal as in the preceding, 

 4 mm. in diameter, with the dorsal pole studded with small papillae and 3 mm. across. 

 The cirri are XXIV, 15-19, from 9 to 11 mm. long. The height of the opposing spine 

 equals one-third that of the segment which bears it. The IIBr and IIIBr series are 2. 

 The arms, which are partly broken, are 21 (with perhaps 2 more) in number and 60 

 mm. long. The IBr, are three times as broad as long. The lateral borders of the 

 IBr and IIBr series are slightly spiny. The intersyzygial interval is four or five muscu- 

 lar articulations. Pj is 3.5 to 4 mm. long, with 22-24 segments. P 2 , on a regenerating 

 arm, is 5 mm. long, with 25 segments. P 4 is 6 mm. long, with 22 segments. Only the 

 first three pinnules are carinate. The distal pinnules are 4.5 mm. long, their segments 

 being three times as long as broad. The disk is 6 mm. in diameter, and the anal cone 

 is 1.7 mm. high. 



In the third specimen from Bock's station 59 the centrodorsal is 5 mm. in diam- 

 eter, with the radially furrowed dorsal pole 3.5 mm. in diameter. The cirri are XXII, 

 19-20, from 16 to 18 mm. long, and are arranged in a double row. The IBr, are eight 

 times as broad as long and are free laterally. The IBr 2 (axillaries) are three times as 

 broad as long. One of the IIBr series is 3, without a pinnule; the other IIBr series 

 and the IIIBr series are all 2. The 23 arms are all broken. The proximal ossicles of 

 the division series have three or four small lateral tubercles, which on the IBr, orna- 

 ment the whole proximal margin. A similar, though less distinct, ornamentation 

 occurs on the IIBr, and on the IIIBr,. The ossicles immediately following the 

 axillaries are interiorly united as far as the distal third. PI is about 5 mm. long, with 

 25 segments. The disk is incised and measures 12 mm. in its longest and 6 mm. in 

 its shortest diameter. Gislen notes that this specimen differs from the two others 

 from Bock's station 59 in its lighter color and in the ornamentation of the proximal 

 ossicles. 



The specimen from Bock's station 61 is young. The IBr, are twice as broad as 

 long. The intersyzygial interval is 5-7 muscular articulations. Gislen noted that 

 in this, as in the specimen from station 46 and the three from station 47, the promi- 

 nences on the proximal pinnules are indiscernible. 



Localities. Rotti Strait, between Rotti and Timor; 183 meters; from the Banju- 

 wangi-Darwin No. 2 cable; cable repair ship Cable, Eastern and Associated Telegraph 

 Co. [A. H. Clark, 1929] (2, B. M.). 



Danish Expedition to the Kei Islands station 27; 60-70 meters; fine sand; April 

 17, 1922 (1). 



Off Cape Padaran, southern Annam (lat. 1138'N., long. 10941'E.); 146 meters; 

 from the Cape St. James-Hongkong cable; R. H. Ellis, cable repair ship Patrol, 

 Eastern and Associated Telegraph Co., June 4, 1927 [A. H. Clark, 1929] (1, B.M.). 



Albatross station 5137; in the vicinity of Jolo (Sulu), Philippines; Jolo light 

 bearing S. 61 E., 1.3 miles distant Gat. 604'25" N., long. 12058'30" E.) ; 36 meters; 

 sand and shells; February 14, 1908 [A. H. Clark, 1908, 1912, 1915, 1918; Gislen, 1922] 

 (1, U.S.N.M., 25436). 



