BULLETIN OF THE 
86 
length to breadth 3.3: 2.7. Side mouth-shields narrow, meeting within and 
there forming a sharp angle. First under arm-plate triangular, outer edge 
curved, inner angle blunt; the next three plates are long axe-shaped, with 
outer edge, which is wider than inner, curved, and re-entering curves on the 
lateral sides ; those beyond are separated by side arm-plates, and are pentag- 
onal, with an angle inward, and outer side curved, Side arm-plates broad, 
somewhat swollen, meeting below beyond the fourth under arm-plate, and 
above beyond the fourth upper arm-plate, where they form almost the entire 
covering of the arm, having an angle inward and a curve without; the first 
three are broader and have the inner angle truncated. Disk thick, rather flat, 
covered above with thin, closely overlapping scales; a cluster in the centre 
of one large rounded primary plate and one smaller to each brachial space, 
separated by two or three rows of much smaller scales; in the interbrachial 
spaces are three large plates, —an oval marginal, connecting the outer ends 
of the genital scales ; a second inside, joining the radial shields by a line of 
small scales ; and a third, smaller and more rounded, which lies between the 
inner ends of the radial shields. Radial shields three-sided, with corners much 
rounded and a blunt angle inward, touching without, diverging inward, where 
they are separated by a small rounded scale ; length to breadth 2.5 : 2. The 
under surface is occupied by the large mouth-shield ; three to five small plates, 
just outside, and the broad genital scales, which, starting very narrow from 
the lateral side of the mouth-shield, increase in width as they curve upward 
over the arm; along their free edge, on the under surface, is a close row of 
large square papille, which become spiniform on the arm-comb. Four or five 
minute, round, pointed arm-spines, evenly spaced along edge of side arm-plate. 
Tentacle-pores very large, the basal ones oval, the rest round ; those of the 
mouth-tentacles have three or four scales on each side; the next two sets, three 
on either side, those next the arm-plate being larger than the others ; just 
beyond the disk they have two small scales on the inner edge, and one larger 
one next the arm-plate, and further out there are no scales. Color in alcohol, 
gray. 
Station 195, 1425 fathoms, 5 specimens. Station 24, (same species?) 390 
fathoms, 2 specimens (young). 
Ophioglypha ornata sp. nov. 
Plate IV, Figs. 113, 114. 
Special Marks. — Three or four minute, widely spaced arm-spines. Mouth- 
shield trefoil, with a pointed lobe inward. Disk high. Basal under arm-plates 
about as long as broad. Arms high and rounded. 
Description of an Individual (Station 216). — Diameter of disk 10 mm. 
Width of arm close to disk 3 mm. Five or six short, square, close-set mouth- 
papilleo on each side, the outer ones wider than the inner, with two pointed 
ones at apex of jaw. Mouth-shicld large, much rounded triangular, with a 
