CRINOIDEA. 157 



The distichal pinnule (tig. !)) is about 1 centim. long, flagellate, and composed of 

 31 joints, the first 7 broad, flattened, and carinate, the later ones gradually becoming 

 cylindrical, longer than broad and with rounded ends. The 1st and 3rd pairs of 

 brachial pinnules are about equal in size, those borne by the 2nd and 6th brachials 

 (fig. 11) having about 29 joints. The 2nd pair of pinnules are the largest on the arm, 

 that of the 4th brachial (fig. 10) being about 15 millims. long, but having 27 joints 

 only. The basd joints of these 3 pairs of pinnules are flattened and more or less 

 carinate. The 5th pair are the shortest, the succeeding one gradually increasing in 

 length. Disk considerably incised and ambulacra naked. Sacculi abundant and 

 close-set on arms anil pinnules, absent on disk. 



Colour in spirit disk chocolate-brown, fading to white in the interambulacral 

 angles; arm joints pinkish, with the articulations of the proximal fourth marked with 

 bands of deep reddish-brown, which gradually fade into dots on the sides of the 

 arms. Pinnules irregularly banded with brown and white. 



Disk 1 centim., spread probably 22 centims. 



Locality : Station XXXIV. 



It is to be regretted that strong reflexion of the arms over the dorsal surface of 

 the disk in the only specimen obtained has made delineation of the skeleton rather 

 difficult. The bidistichate ray is not improbably an abnormality. 



Antedon anceps, Carpenter. 



Two specimens of this species were dredged, one at Station XXIV., and the other at 

 Station LVII. Both have a single distichal series and 11 arms. The colour, when 

 living, was black. 



Antedon variipinna, Carpenter. 

 A considerable number of specimens of this remarkable species were dredged at 

 Station II. They have 20 to 21 fairly smooth arms, 30 to 36 cirrus joints, the later 

 ones carinate, and the 1st radials are only visible in side view. 



Actinometra notata, Carpenter. 



< )ne specimen of this species was obtained at Station LIV. Carpenter's diagnosis 

 assigns to it 30 to 35 cirri and 31 to 50 arms, but the specimen under notice has only 

 20 cirri. 8 of which are quite small and immature, and 20 arms. The 1st radials are 

 distinctly visible and almost completely united laterally. Thev are also connected 

 with the eentro-dorsal by five interradial projections from the latter. 



Actinometra multiradiata (Linn.). 



Single specimens of this species were dredged at Stations IX., XLL, LIIL, and 

 LXVI. That from the first-named station has 12 arms only. Two of the rays have 

 each a series of 3 distichals, the axillary with a syzygy, and a syzygy in each of 

 the 2nd brachials; but in all the arms which arise directly from the radial 



