BULLETIN OF THE 
Ophioglypha ferruginea sp. nov. 
Plate III. Fig. 76. 
Special Marks. — Disk rather flat and covered with imbricated scales, Un- 
der arm-plates small, widely separated ; much wider than long beyond the 
second plate, and thereafter constantly diminishing in size. Arm-comb of 
papille more or less needle-like. Arm slightly flattened with spines about 
as long as a joint. 
Description of an Individual (Station 162). — Diameter of disk 6.5 mm. 
Length of arm about 22 mm.; width of arm close to disk without spines 
1.5 mm. Three or four short, pointed, widely separated papille on each side, 
and one or two, somewhat longer, at apex of jaw. Mouth-shields longer than 
wide, pentagonal, with an angle inward, lateral sides straight, outer edge 
rounding, length to breadth 1.7: 1. Side mouth-shields nearly straight aud 
narrow, slightly tapering inward, where they meet. First under arm-plate 
triangular, with an angle inward and outer edge curved ; second one with lat- 
eral sides curved ; those beyond are much broader than long, with curved 
outer edge and a small peak within. Side arm-plates slightly swollen, meet- 
ing broadly below, separated above by upper arm-plates, four-sided, with outer 
edge rounded, lateral sides straight, and inner side shorter than outer. Disk 
covered with closely joined, rounded scales of several sizes ; radial shields short 
pear-seed shape, swollen, nearly meeting without, but separated their entire 
length by a wedge of one large and three or four smaller scales ; space within 
the radial shields occupied by a central cluster of six primary plates, separated 
by minute scales, one or two larger plates in the brachial and interbrachial 
spaces, with other smaller ones irregularly disposed. Genital scales long and 
narrow ; along their free edge is a line of very fine bead-like papilla, becoming 
short regular spines as they pass to the upper surface to form the arm-comb, 
where the genital scales are much broader ; interbrachial spaces below covered 
with rows of semicireular swollen plates, varying in size ; at the margin is 
a large, much swollen plate, broader than long, on either side of which is a 
smaller oval one. Three long tapering arm-spines, the upper one being 
slightly longer' than the others, and nearly as long as a joint. Tentacle-scales 
thin, and quite round, — on the large pores of the mouth-tentacles four or five 
on each side ; on the second three on each side ; third and fourth two on each 
side ; those beyond have usually one large scale. Color in alcohol, below, 
white ; above, mottled yellowish brown, and arms barred with the same. 
O. ferruginea is of the strictly typical Ophioglyphe. It is distinguished from 
O. sinensis by different mouth-shields and thicker disk-scales, and by wanting 
the water-pores between the basal under arm-plates, 
Station 162, Bass Straits, 38 fathoms, 3 specimens. Port Jackson, 2-10 fath- 
oms, 12 specimens. Station 161, 38 fathoms, 1 specimen. Station 188, 28 
fathoms, 1 specimen. 
