102 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



are 4 (3+4). The cirri are XXX, 42-44, about 30 nun. long, and are typically large 

 and stout; the dorsal spines commence on the thirteenth or fourteenth segment. 

 The proximal pinnules are considerably larger on the outer arms than on the inner. 

 P D is moderately stout with 28-30 segments and measures 15-17 mm. in length. The 

 color is purplish white, becoming deep purple on the arms. The proximal part of each 

 segment is crossed by a deep purple band. The cirri are purple, becoming darker in 

 the outer half. 



In the specimen from Mjoberg's station 11 as described by Gisle"n the centro- 

 dorsal is hemispherical. The dorsal pole, which is 3 mrn. in diameter, is colored by 

 shallow black margined pits where cirri have fallen off. The cirri are XXX, 33-45, 

 from 25-35 mm. long. The cirrus count includes 10 sockets, from which cirri recently 

 have become detached, and 5 young cirri. The cirri in the ventral row are 32-35 mm. 

 long with 42-45 segments, the dorsal processes beginning on the thirteenth or four- 

 teenth, and those in the dorsal row are 25-28 mm. long, with 33-35 segments and the 

 dorsal processes beginning on the tenth. Intermediate cirri have 36 and 42 segments 

 with the dorsal processes beginning on the twelfth or thirteenth. The cirrus segments 

 are mostly broader than long; the segment preceding the one bearing the first spine is 

 the longest and is as long as, or longer than, broad. The length of the dorsal spines is 

 from one-third to one-half the width of the segments. The opposing spine is a little 

 longer than the preceding spines, and its length equals about the width of the penul- 

 timate segment; its base occupies the entire dorsal surface of that segment. The 

 terminal claw is two or three times as long as the penultimate segment and is rather 

 strongly curved. The dorsal spines and the terminal claw are white. The basal 

 cirrus segments are distally white. 



The radials are very short and are in contact laterally. The IBr, are four tunes 

 as broad as long and are laterally separated. The IBr 2 (axillaries) are broadly pentag- 

 onal, a little longer than the IBn in the median line. The 9 IIBr series are 4 (3+4). 

 Of the 15 IIIBr series 14 are 2 and one is 4 (3+4). Ah 1 the 3 IVBr series present are 

 4 (3+4). The first ossicles following each axillary are ulteriorly united basally. 

 The arms are 37+ (probably about 40) and are 105 mm. in length. The elements of 

 the division series and the brachials to about the tenth are markedly smooth and 

 discoidal. The brachials then become more or less wedge-shaped with produced 

 distal edges. Syzygies occur between brachials 3+4, again from between brachials 

 37+38 to between brachials 40+41, from between brachials 58+59 to between bra- 

 chials 63 + 64, and from between brachials 73 + 74 to between brachials 76 + 77. On 

 one arm the second syzygy is between brachials 53 + 54, and on another the third 

 is between brachials 87 + 88. On one arm arising from a IIBr 2 series the syzygies 

 are between brachials 3+4, 13 + 14, 19+20, 25+26, 33+34 and 42+43. 



P! is 14 mm. long, with 31-39 segments. P 2 is 16 mm. long, with 32-36 segments. 

 P 3 is 9-12 mm. long, with 19-28 segments. P 4 is about 8 mm. long, with 18+ seg- 

 ments. Pt, has 13 segments. P is 6 mm. long, with 13 segments. The pinnules 

 following increase in length to P, which is 9 mm. long, with 19 segments. P a is 13 

 mm. long, with about 25 segments. P b is of similar length. P c and P d rapidly de- 

 crease in length. P, is the shortest, the succeeding pinnules increasing again. The 

 disk is lacking. As preserved in alcohol the arms are pale chocolate-brown. The 

 pinnules are dark violet, ribboned with white. The soft parts are dark. 



