A MONOGRAPH OF THE EXISTING CRINOIDS 143 



From Albatross station 3716 there are 7 specimens, one with 17 arms, 5 with 20 

 arms, and one with 22 arms. 



The specimen from Albatross station 3717 has 20 arms. 



Of the 14 specimens from Albatross station 3720 one has 16 arms, 2 have 19 arms, 

 8 have 20 arras, and 3 have 22 arms. 



The specimen from Albatross station 3725 has 10 arms. 



The 3 specimens from Albatross station 3726 at hand have 10, 11, and 13 arms. 



Of the 5 specimens from Albatross station 3727 one has 10 arms, one has 18 arms, 

 and 3 have 20 arms. 



One of the specimens from Albatross station 3729 has 16 arms. 



The specimens from Albatross station 3755 have 18 and 19 arms. 



One of the specimens from Albatross station 3764 has 12 arms. 



The 2 specimens from lat. 35°06' N., long. 139°42' E., 55 meters, or lat. 34°59' 

 N., long. 139°33' E., 110 meters, are small with 10 and 15 arms. 



Of the 11 small specimens from lat. 35°02' N., long. 138°50' E., in 100 meters, 

 4 have 10 arms, 2 have 11 arms, 2 have 12 arms, 2 have 13 arms, and 1 has 14 arms. 



One of the specimens from lat. 35°11' N., long. 139°45' E., in 91 meters, has 20 

 arms. 



The specimen from lat. 35°13' N., long. 139°45' E., in 73 meters, has 20 arms. 



Of the 5 specimens from lat. 35°11' N., long. 138°43' E., in 55 meters, one has 

 14 arms, one has IS arms, two have 20 arms, and one has 21 arms. The last has the 

 single IIIBr scries present developed on the outer side of one of the postradial series. 

 On one arm the syzygial pair consisting of brachials 3 + 4 is repeated, neither bearing 

 a pinnule. 



The specimen from lat. 34°59' N., long. 139°34' E., in 100 meters, is small with 

 13 arms. 



One of the specimens from near Misaki in 100 meters has 17 arms 60 mm. long. 



In the specimen from Bock's station 33, as described by GisMn, the centrodorsal 

 is 0.8 mm. in diameter. The cirri are XX, the longer 5-6 mm. long with 15-18 seg- 

 ments, and those about the dorsal pole 2.5 mm. long with 12 segments. The longest 

 segments are one-third again as long as broad. The fourth-eighth segments have a 

 double dorsal spine, and those succeeding have a single prominence in the middle of 

 the segment. The antepenultimate segment is usually smooth. The opposing spine 

 is in height equal to half the width of the penultimate segment. The terminal claw 

 is as long as the preceding segment. The earlier segments are somewhat constricted 

 basally so that this portion of the cirri has a rather serrate profile. The radials are 

 visible as narrow bands. The IBri are one-third again as broad as long, and are free 

 laterally. The IBr2 (axillaries) are four times as broad as long. The first brachials 

 are twice as broad as long, and are basally united interiorly. The 10 arms are 25 mm. 

 long. The distal brachials are half again as long as broad, and are smooth. The 

 intersyzygial interval is 3 or 4 muscular articulations. P, is 2 mm. long with 6 or 7 

 segments. P2 is 4 mm. long with about 10 segments. P3 is 2.5 mm. long with 7 or 8 

 segments. P» is lacking. Pb is 2.5 mm. long with 9 segments, of which the third and 

 following are smooth and from two to three times as long as broad. The distal pin- 

 nules are about 3.5 mm. long. The disk is lost. The color is white with violet spots. 



