BULLETIN OF THE 
Ophioglypha Lymani Lox. 
Ophioglypha Lymani, Om tvänne nya arter, Of. Kong. Akad. No. 5, p. 472. 1870. 
Station 304, 45 fathoms, 2 specimens, Station 305, 120 fathoms, 12 speci- 
mens. Station 307, 147 fathoms, 12 + specimens. Station 308, 175 fathoms, 
1 specimen. Station 309, 40-140 fathoms, 3 specimens. Station 311, 245 
fathoms, 1 specimen. Station 313, 50 fathoms, 12 + specimens. 
OPHIOCTEN Lrx. 
Ophiocten amitinum sp. nov. 
Plate V. Figs. 129, 130. 
Special Marks. — Primary and marginal disk-plates large and conspicuous. 
Arm-comb and papille on first two upper arm-plates well marked. Two 
minute tentacle-scales. 
Description of an Individual (Kerguelen. Islands). — Diameter of disk 7 mm. 
Length of arm about 35 mm. Width of arm without spines 1.5 mm. Four 
short blunt mouth-papille on each side, and one longer and pointed at apex 
of jaw. Mouth-shield large, pentagonal, broader within than without, having 
a wide angle within, and outer corners curved ; length to breadth 1.2: 1.4. 
Side mouth-shields small, broader without than within, where they meet and 
are often somewhat separated from the mouth-shield. First under arm-plate 
large, rounded triangular, with outer edge straight ; the remaining plates small 
and three-sided, much wider than long, with outer edges strongly curved and 
inner laterals re-enteringly curved, the whole presenting almost a crescent 
shape; they become very small towards tip of arm. Side arm-plates broad, 
flaring somewhat outward, meeting broadly below ; separated above by the 
upper arm-plates, which are broader than long, with lateral sides straight, and 
outer edge, which is wider than inner, curved, Disk round, flat, and rather 
thick, covered with thin flat scales and plates of various sizes, among which 
are six rounded primaries, separated by single lines of small scales ; in the 
brachial space, just inside the radial shields, there is a transverse row of 
larger rounded scales; in each interbrachial space are two separated plates 
similar to the primaries, and outside these, along margin of disk, is a row of 
four connected plates. Radial shields conspicuous, pear-seed shaped, widely 
separated by disk-scales. Outside the radial shields is an arm-eomb of small, 
short-pointed papilla, part carried on outer point of genital scale and part on 
outer edge of radial shield and on the scale between the radial shields ; besides 
these there is on the outer edge of the first three upper arm-plates a row of 
from three to five papilla. Lower interbrachial space covered by regular rows 
of small, semicircular, overlapping scales, and by the genital scales, which are 
longer than broad, and slightly wider without than within, and sometimes 
'arry on their free edge an irregular row of minute papille. First pair of 
tentacle-pores have two very small scales on the outer edge, the rest have one 
