259 
long, comprising only ca. 7 joints. From the 3rd forking a slight 
difference in the lengtk of the branches begins; thus in one branch 
they are respectively 13 and 8 mm long, in another 12 and 16 mm. 
Farther out the size of the branches becomes very unequal, so 
that there comes to be one main stem with smaller, rather regularly 
alternating side branches. 
The rings of hooklets are found only on the outer branches, 
beginning from about the 8th forking. They are double. 
A most conspicuous feature of this species is that the tube- 
feet have totally disappeared on the inner 6—7 forkings. From 
the 7th—8th forking they appear, but are very fine, evidently 
rudimentary. On the outer branchlets they are comparatively a 
little larger, though always very fine. The papillæ begin also at 
the 7th—8th forking, to the number of two, then increasing to 3 
and 4; on the outer branchlets the number decreases again, and 
at last there is only one. They are only small and inconspicuous 
hooks. The very small pores can be traced a little farther in on 
the arms than the papillæ. They are situated on the edge of the 
arms. Along the middle of the arms is seen a double series of 
small, paired, translucent spaces, from the mouth-edge to the outer 
branches, through about the 8 first forkings, resembling tentacle 
pores. They are, however, closed and have nothing to do with the 
pores; they represent spaces between the vertebræ, as known also 
in some other Euryalids. 
Two of the arms are broken close to the disk, at the first 
forking. Each of them has begun to regenerate, but only one 
branch has been formed as yet on each of them. 
The specimen was taken in San Bernardino Strait, 12° 27' N. 
124° 3'E. in 50—100 fathoms, on the 3.8.1911. 
3. I. 1912. 
17 * 
