86 EULLETIX OF THE 



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 axo-shapcd, 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 inwarel and a curve witliout ; 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 sliields by a line of 

 small scales ; and a third, smaller and more rounded, which lies between the 

 inner ends of the radijil 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 surfoce 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 papillae, 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 othere ; just 

 beyond the disk they have two small scales on the inner edge, and one larger 

 one next the arm-jjlate, and further out there are no scales. Color in alcohol, 

 gray. 



Station 195, 1425 fiithoms, 5 specimens. Station 24, (same species?) 390 

 fathoms, 2 specimens (young). 



Ophioglypha omata sp. nor. 



Plate IV. Fijjs. 113, 114. 



Special Maries. — Three or four minute, widely spaced arm-sjnnes. Mouth- 

 phield trefoil, with a pointed lolie inwanl. Disk high. Basal under arm-plutes 

 about a.s long as Itroad. Arms high and rounded. 



Descriplion of an Individual (Station 2 KJj. — Diameter of disk 10 nun. 

 Width of ann close to disk 3 mm. Five or six .short, square, close-set mouth- 

 ]>apilla3 on each side, the outer ones wider than the inner, with two pointed 

 ones at apex of jaw. Mouth-shield large, much rounded triangular, with a 



