T2 BULLETIN OF THE 
below covered by irregular.overlapping scales. "Three slender arm-spines, the 
longest one nearly as long as a joint, and. situated near the junction of the side 
arm-plate with the upper, and two others similar but shorter near the junction 
of the side with the under arm-plate. "lentacle-scales small, short, pointed, 
four or five on each side of mouth-tentacle pore, whence they diminish in 
number, till just beyond the disk, where there are two on the inner side of 
each pore. Color in alcohol, gray. 
Station 122, 350 fathoms, 12 specimens. 
Ophioglypha sequalis sp. nov. 
Plate III. Figs. 74, 15. 
Special Marks. — Four very short, peg-like arm-spines, equally spaced. Disk 
thin, with rather delicate scales. Arms slender. 
Description of an Individual (Station 218). — Diameter of disk 10 mm. 
Width of arm close to disk without spines 1.7 mm. Four or five short, 
square, separated mouth-papille on each side, with one much larger and 
pointed at apex of jaw. Mouth-shields broader than long, with outer edge 
curved, a blunt angle inward and a slight notch in the lateral sides; length 
to breadth 1.3: 2. Side mouth-shields short and narrow, meeting within. 
First under arm-plate broad triangular, with outer edge curved and a blunt 
angle inward; second plate broader without than within, pentagonal, with 
an angle inward, outer edge slightly curved, and lateral sides re-enteringly 
curved ; the rest are broader than long, rapidly becoming smaller in size beyond 
the disk, where they acquire the shape of a transverse oval, with a little peak 
within and a curve without. Side arm-plates even and of a tubular figure, 
slightly projecting at their outer edge, meeting widely below, separated above 
3t the basal joints by the upper arm-plates, of which the first and second. form. 
a wedge with a curved outer edge, filling the notch formed by the arm-combs, 
and bearing on their lateral sides a row of minute, sharp papillo ; the rest are 
long, triangular, with the outer edge curved, and a sharp angle inward, which 
on the second and third plate is truncated. Disk flat and delicate, covered 
with very thin, small, closely overlapping scales ; in the centre is a circular 
primary plate, surrounded by fine irregular scales, then a circle of five primary 
plates, one in each brachial space, and separating the inner ends of the radial 
shields, which are long pear-seed shape, and separated the rest of their length by 
small scales ; in the interbrachial space there is a row of larger rounded plates, 
of which the outer one is marginal Interbrachial spaces below covered with 
thin overlapping scales. Genital scales long and very narrow where next the 
mouth-shield, but gradually growing wider above the arm, where they make a 
long arm-comb carrying delicate spine-like papilla ; on the free edge of the 
genital scale below there is a row of very short, minute, rounded papilla. 
Four or five minute, blunt arm-spines, equally spaced along the edge of the 
side arm-plate. The pores of the mouth-tentacles and the two pairs beyond 
