272 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



In a specimen from Bock's station 47 the centrodorsal is 2 mm. in diameter, 

 the bare dorsal pole being 1.5 mm. across. The cirri are XX, 10-11, 4 mm. long; 

 4 of the cirri are very small. The IBr ( are eight times as broad as long. The IBr 2 

 (axillaries) are five times as broad as long. The 10 arms are 30 mm. long. Syzygies 

 occur usually between brachials 1+2 and 3+4. PI is 4 mm. long with 24 segments, 

 of which 9 bear teeth. P 2 is 3.5 mm. long with 20 segments, of which 9 bear teeth. 

 P 3 is 3 mm. long with 11 segments. The distal pinnules are 3.5 mm. long with 14-15 

 segments. The bases of the pinnules bear swollen gonads. The disk is 3 mm. in 

 diameter. The color is brown. 



In another specimen from Bock's station 47 the cirri are XX, 8-9, from 2 mm. 

 to 3 mm. long. The IBr t are as in the preceding. The IBr 2 (axillaries) are three 

 times as broad as long. The 10 arms are 27 mm. in length. P! and P 2 bear combs. 

 P 3 is 3.5 mm. long with 9 segments. The distal pinnules have 13 segments. 



In another example from Bock's station 47 the cirri are XIX, 9-10, from 3 mm. 

 to 4 mm. in length. The IBr, are eight times as broad as long. The IBr 2 (axillaries) 

 are three times as broad as long. The 10 arms are 25 mm. long. The first 2 brachials 

 are each four times as broad as long. PI is 4 mm. long with about 25 segments, of 

 which 8 bear teeth. P 2 is 3.5 mm. long with 20 segments, of which 7 bear teeth. P 3 

 is 3 mm. long with 12 segments. The distal pinnules have 12 segments. The gonads 

 are only slightly swollen. 



Another specimen from Bock's station 47 has the centrodorsal 1.8 mm. in diam- 

 eter. The cirri are XIII, 9-10, from 2 mm. to 3 mm. long. The IBri are three times 

 as broad as long. The IBr 2 (axillaries) are twice as broad as long. The comb on 

 PI consists of 8 teeth. P 2 bears a comb. The gonads are only slightly swollen. 



In another example from Bock's station 47 the centrodorsal is 1.8 mm. in diam- 

 eter. The cirri are XIV, 9-10, from 2.5 mm. to 3 mm. long. The IBr! are three 

 times as broad as long. The IBr 2 (axillaries) are twice as broad as long. The comb 

 on PI consists of 8 teeth. P 2 bears a comb. P 3 is 2 mm. long with 10 segments. The 

 gonads are only slightly swollen. 



A specimen from Bock's station 55 has the cirri XIX, 10, 3 mm. long. The 

 10 arms are 25 mm. long. P! and P 2 have combs with 8 teeth. The distal pinnules 

 have 12 segments. The gonads are well developed. 



Another specimen from Bock's station 55 has the cirri XIX, 9-10, from 3 mm. 

 to 4 mm. long. The IBri are almost completely concealed. The IBr 2 (axillaries) 

 are three times as broad as long. The 10 arms are 30 mm. long. P! and P 2 have 

 combs. The gonads are well developed. 



Another specimen from Bock's station 55 has the cirri XV, 8-9, 3 mm. long. 

 The IBrj are almost completely concealed. The IBr 2 (axillaries) are three times as 

 broad as long. P! and P 2 have combs. The gonads are well developed. 



Another example from Bock's station 55 has 10 arms 22 mm. long. P! and P 2 

 have combs. The distal pinnules have 10 segments. This specimen is attached to 

 a worm tube. 



Another individual from Bock's station 55 has 10 arms 14 mm. long. PI and P 2 

 bear combs. The gonads are somewhat swollen. 



