148 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



are 35 mm. long. PI is 3.2 mm. long with 11-12 segments. P 2 is 4.7 mm. long with 

 14 or 15 segments. P 3 is 3.5 mm. long with 12 segments. The color is yellowish with 

 small sparse violet spots. 



In a fourth specimen from Mortensen's station 10 the cirri have 16-21 segments, 

 and are from 5 to 8 mm. long. The 10 arms are 28 mm. long. PI is 2.2 mm. long with 

 10 segments. P 2 is 3 mm. long with 12 segments. P 3 is 1.8 mm. long with 8 segments. 

 The disk is 2.8 mm. in diameter. 



From Mortensen's station 1 1 Gisle'n recorded 8 very slender and evidently young 

 specimens probably also belonging to this species. 



In one of these the cirri are XX, 8-15, from 2.5 to 6 mm. long. The radials are 

 4 times as broad as long. The 10 arms are 22 mm. long. P] is 2.2 mm. long with 8 

 segments. P 2 is 2.3 mm. long with 11 segments. P 3 is 1.4 mm. long with 7 segments. 

 P 4 is still shorter. The disk is 1.6 mm. in diameter. There are no orals. Seven of 

 these specimens have 10 arms 15-25 mm. long, and one has 11 arms 30 mm. long. 

 In the smallest specimen the arm length is 15 mm. The disk is half detached. Small 

 orals are present. 



In the specimen from Mortensen's station 7 the cirri are XXII, 19-24, from 8 

 to 12 mm. long. From the fifth segment onward there is an indistinct transverse 

 ridge, slightly thickened laterally. From the eleventh onward there is an unpaired 

 dorsal spine. The 10 arms are 50 mm. long. The color is whitish with numerous 

 small red spots. 



The 5 specimens from lat. 32 12' N., long. 128 10' E., in 183 meters, are all 

 small. Two have 10 arms, one has 11 arms, and two have 12 arms. As is frequently 

 the case in this species, P a is occasionally present. 



In the specimen from Bock's station 12, as described by Gisle'n, the centrodorsal 

 is discoidal, 1.5 mm. in diameter. The cirri are X, 16-18, from 5.5 to 6 mm. long. 

 The cirrus segments are rather short, the longest being as long as the distal width. 

 From the fourth to the seventh segment there is a transverse ridge, and fpom the 

 seventh segment onward a single dorsal spine. The IBri and IBr 2 have a weak 

 longitudinal carination. The 10 arms are all broken. Syzygies occur between 

 brachials 3+4, 9 + 10, 14+15, etc., thence at an interval of 3 muscular articulations. 

 PI is composed of 10 segments, and is shorter than P 2 which is 4 mm. long with 11 

 segments. P 3 is 3 mm. long with 9 segments. P 6 has 11 segments. P a is absent 

 The disk has been thrown off. 



Another specimen from Bock's station 12 was thus described by Gisl6n under 

 the name of Cyllometra pulchella. The cirri are XVII, 20-24, from 8 to 10 mm. long, 

 and are arranged in a single or double row on the centrodorsal. The radials are 

 visible as broad bands. The IBr, are twice as broad as long. No synarthrial tubercles 

 are developed. The 12 arms are 40 mm. long. P, is 3 mm. long with 9 or 10 segments. 

 P 2 is about 4 mm. long. P fc is 4 mm. long with 9 segments. P 3 is 2.5 mm. long 

 with 9 segments. The distal pinnules are 4 mm. long with about 14 segments. 



All the specimens from Bock's station 13, of which there were 33, were referred by 

 Gisle'n to C. pulchella. In one of them the centrodorsal is thick discoidal with the free 

 dorsal pole flat, 1.5 mm. in diameter. The cirri are arranged in two rows. The cirri 

 are XXIV, 25-29, from 10 to 12 mm. long. The first-third segments are broader than 

 long, the fourth is about as long as broad, the fifth is somewhat longer, and those 



