96 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



short distal segments have a high dorsal carination with the rather abruptly rounded 

 apex subterminal in lateral view. In lateral view the cirri are stout basally, tapering 

 noticeably in the first six or eight segments, increasing slightly in width beyond the tenth, 

 and in the distal fourth tapering to a small tip. 



The radials and part of the IBri are concealed by the centrodorsal which in the 

 interradial angles is extended anteriorly so as almost or quite to meet the lateral angles 

 of the axillaries. The IBri are short and crescentic, incised in the median line by the 

 backward extension of the axillaries and with the lateral borders reduced to a point. 

 The IBr 2 (axillaries) are broad, rhombic, twice as broad as long, with the lateral angles 

 truncated and the short sides thus formed flattened against those of the adjacent ossicle. 

 Of the four IIBr series present two are 4(3 + 4) and two are 2. They are well rounded 

 dorsally, but are in lateral contact. The borders and dorsal surface of the elements of 

 the division series are entirely smooth, and there is only a very slight elevation at the 

 synarthries. 



The 14 arms were probably about 140 mm. long. The earlier brachials are broadly 

 and evenly rounded dorsally and entirely smooth, with only a very slight eversion of the 

 ends which is very minutely, if at all, spinous. The position of the articular tubercles is 

 faintly indicated. After the brachials become triangular the production of the distal 

 border becomes more marked and more prominently spinous, and on the brachials in 

 the outer half of the arm there is a strong spinous overlap and the central portion of the 

 distal edge of the brachials may bear an abrupt tuft or fin of rather long spines. 



P! is 12 mm. long with 20 segments; it is fairly stout at the base and tapers evenly 

 to a slender tip. The segments become about as long as broad on the fifth, and twice 

 as long as broad on the thirteenth. The small elongated distal segments have spinous 

 ends. 



P s is 7 mm. long with 15 segments, proportionately smaller than PI. The segments 

 become as long as broad on the third or fourth, and twice as long as broad on the tenth. 



P 3 is shorter and less stout basally than P 2 . 



The distal pinnules are 12 mm. long with 20 or 21 segments, of which the first is 

 short, the second is half again as broad as long, the third is about as long as broad, and 

 the outer are twice as long as broad. The dorsal keel on the segments is sharp and rather 

 coarsely spinous, and there is a little tuft of spines at the end of each segment. 



In diagnosing this supposed new species I said that it is a species of Crotalometra in 

 which the cirri, which are large and stout and composed of 45-57 segments, are arranged 

 in 10 columns on the centrodorsal; the brachials beyond the proximal third of the arms 

 have the distal edges strongly overlapping, the central portion of the distal edge often 

 bearing an abrupt tuft or fin of rather long spines (more or less as in C. sentifera) . 



Localities. Siboga station 226; Moluccas; mid channel between the Lucipara and 

 Schildpad Islands (lat. 526'42" S., long. 12736'30" E.); 1,595 meters; hard bottom, 

 only small stones in the dredge; November 11 and 12, 1899 [A. H. Clark, 1912, 1918; 

 Gislen, 1928, 1934] (2, Amsterdam Mus.). 



Investigator; Malay Archipelago; 55 meters [A. H. Clark, 1909, 1912, 1918] (1, 

 I. M.). 



Albatross station 5317 (listed in the dredging records as 5517); China Sea in the 

 vicinity of Formosa (Taiwan) (lat. 2136'00" N., long. 11727'00" E.); 420 meters; 



