474 BULLETIN 82, UNITED STATES NATIONAL MUSEUM 



The arms are very numerous, from 13 to 24 on each ray, and are 110 mm. in 

 length. They are composed of moderatelj^ long, triangular, and much overlapping 

 brachials which soon become wedge-shaped and are nearly square at the ends. The 

 anterior arms have 160 and the posterior only 60 or 70 segments. 



Syzygies occur between brachials 3 + 4 and 11 + 12 or 13+14, and distally at 

 intervals of from 3 to 7, usually 4 or 5, muscular articulations. 



Pd and Pp are of about equal size, reaching 15 mm. in length. The length of 

 the pinnules following diminishes to Pj, which is considerably shorter, wliile Pj and 

 Ps are much more so, after which the length increases again. The later pinnules on 

 the anterior arms are not especially long. Terminal combs occur as far as the tenth 

 brachial. 



The disk is 27 mm. in diameter, naked or slightly plated. The mouth is inter- 

 radial or nearly so. 



The color in alcohol is deep brown, the pinnules tipped with yellow green. 

 I found one of these specimens to have the cirri VIII, 15-17; the other has 

 4 large and 2 small cirri, and a few cirrus stumps. 



Carpenter's figure of this species (regalis) does not wholly accord with his 

 description. The IIIBr series on the 5 rays are shown as follows: 

 2—4 (3 + 4)— 4 (3 + 4)— 2. 

 2—4 (3 + 4)— 4 (3 + 4)— 2. 

 4 (3 + 4)— 2— 4 (3 + 4)— 2. 

 2—4 (3 + 4)— 2— 4 (3 + 4). 

 4 (3 + 4)— 4 (3 + 4)— 2— 4 (3 + 4). 

 Of the 10 IIBr series 6 bear IIIBr series showing the normal arrangement, the 

 external being 2 and the internal 4 (3 + 4). On the last ray given both of the IIBr 

 series are 2 instead of 4 (3 + 4) ; the IIIBr series to the right show the normal reversed 

 arrangement which follows IIBr 2 series. Two other pairs of IIIBr series show a 

 reversed arrangement. In only a single case are the 2 IIIBr series following a IIBr 

 series both 4 (3 + 4). 



The specimen from the Danish expedition to the Kei Islands station 20 is small, 

 with 69 arms 120 mm. long. Of the 10 IIBr series, 9 are 4 (3 + 4) and 1 is 2. The 

 IIIBr series on the various rays are as follows: 

 2—2—4 (3 + 4)— 4 (3 + 4). 

 2—4 (3 + 4)— 4 (3 + 4)— 2. 

 4 (3 + 4)— 4 (3 + 4)— 4 (3 + 4)— 4 (3 + 4). 

 4 (3 + 4)— 4 (3 + 4)— 4 (3 + 4)— 4 (3 + 4). 

 4 (3 + 4)— 0—4 (3 + 4)— 2. 

 One of the specimens from station 30 is rather small with 70 arms 140 mm. long. 

 Only a single postradial series shows the typical arrangement of IIIBr series, 2 exter- 

 nally and 4 (3 + 4) internally; on the other 4 a single outer IIIBr series is 2, the other 

 3 being 4 (3 + 4). Of the 10 IIBr series 8 are 4 (3 + 4) and 2 are 2. The centrodorsal 

 is pentagonal with the dorsal surface almost down to the level of the dorsal surface 

 of the radial circlet; its periphery bears a few minute cirrus buds. The other speci- 

 men from station 30 is very young with about 55 arms 120 mm. long. 



