558 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



P D is from 35 to 42 mm. long with about 50 segments, of which the 5 or 6 ter- 

 minal are smooth. The comb is composed of 16 teeth. The pinnule on the IIIBr 

 series is 30 mm. long. PI is about 25 mm. long, and has the last 3 segments smooth. 

 Its comb has 13 teeth. The comb of P 2 has 8 teeth. P 3 is 7 mm. long, and carries 

 a comb with 6 teeth. P 4 and P 5 are a little shorter than P 3 , and also bear combs. 

 P 8 is longer and is without a comb. 



The disk is 32 mm. in diameter. The anal funnel is 5 mm. high. The color is 

 as in the preceding specimen, but the disk is spotted with olive brown. 



In the specimen from Bock's station 15, the centrodorsal is 8 mm. in diameter, 

 with the dorsal pole 5 mm. in diameter. The cirri are XXXII, 23-28, from 18 to 

 25 mm. long. The dorsal spines are a little stronger than in the preceding specimens. 



The IBr 2 (axillaries) are three times as broad as long, with the distal angle 

 somewhat produced. They are 6 mm. in breadth. 



The 32 arms are 115 mm. long. The interspaces between the IIBr 3 are 2.5 

 mm. broad. The division series are somewhat more slender than those of the pre- 

 ceding specimens. 



P D is from 26 to 33 mm. long and is composed of about 45 segments, of which 

 from 5 to 14 bear teeth, though the terminal segments are smooth. The pinnule 

 on the IIIBr series, or PI, is 23 mm. long, and bears a comb consisting of about 10 

 teeth. P 2 is 18 mm. long and bears a comb of 8-9 teeth. P 3 , P 4 , and P 5 bear a small 

 short comb of 3-5 teeth. P 6 is 5.5 mm. long with 18 segments, and has no comb. 



The disk is 28 mm. in diameter. The anal tube is 4.5 mm. high. In color 

 this specimen is a little more grayish brown than the 2 preceding. 



The 16 specimens from Mortensen's station 10 have the following characters: 



The centrodorsal is 9 mm. in diameter, with the dorsal pole 5 mm. in diameter. 

 The cirri are XXVII, 26-30, from 27 to 32 mm. long. The 38 arms are 100+ mm. 

 long. The width of the IIBrj is 3.8 mm. There is an interspace between the IIBr, 

 of adjacent rays 1 mm. broad. P D is about 25 mm. long with a comb of 19 teeth 

 and a smooth tip. The pinmde on the IIIBr series is about 15 mm. long. P 1 is 

 4.5 mm. long. Combs occur as far as P 2 or P 3 . The disk is 30 mm. in diameter. 



The cirri are XXXII, 23-31, from 25 to 35 mm. long. The 28 arms are 100 mm. 

 long. The width of the IIB^ is 3.8 mm. The interspace between the IIB^ on adja- 

 cent rays is 1.5 mm. 



The cirri are XXXV, 28-30, from 25 to 36 mm. in length. The 32 + arms are 

 100+ mm. long. The width of the IIB^ is 4 mm. The interspace between the 

 IIB^ on adjacent rays is 0.6 mm. broad. The disk is 24 mm. in diameter. 



The cirri are XXXV, 30-35, from 28 to 35 mm. long. The 40 arms are 120 mm. 

 long. The disk is 30 mm. in diameter. 



The cirri are about XL, 33-34, up to 42 mm. in length. There are 39 arms, all 

 of which are broken. The width of the IIBr, is 5.3 mm. The division series are 

 in lateral apposition. The disk is 35 mm. in diameter. 



The cirri are about XXXV, 33, 35 mm. long. The 38 arms are about 120 mm. 

 in length. The width of the IIBi^ is 5 mm. The interspace between the IIBr series 

 is 0.5 mm. broad. One of the rays is abnormal (see beyond, under "Abnormal 

 specimens"). P D is 38 mm. long. The pinmde on the IIIBr series is 27 mm. long. 



