88 BULLETIN OF THE 



circular, -with the curve inward. Disk covered with rounded, flat, thin, closely 

 joined plates, among which may be seen a central rosette of primaries, and 

 two larger plates in each interbrachial space. Radial shields short, wide, 

 rudely semicircular, touching along part of their length, separated within by 

 small wedge-like scales. The interbrachial space on the under surface is nearly 

 covered by the large mouth-shield. The genital scales are broad and slightly 

 curved, and bear rather stout tooth-like papilla3. Outside the mouth-shield 

 are two rows of small thin semicircular scales. The papilla? of the arm-comb 

 are flat, squarish, and separated, and are borne by a semicircular plate about 

 as broad as long. Three minute arm-spines, pointed and standing well up on 

 the outer edge of the side arm-plate. Tentacle-scales of the innermost pair 

 of pores small, semicircular, usually two on either side. The rest of the ten- 

 tacle-pores have usually one large on the outer side, and three or four smaller 

 on the inner side. Color in alcohol, nearly white. 



Station 160, 2600 fathoms, 5 specimens. Station 299, 2160 fathoms, 

 3 specimens. 



Ophioglypha lienosa sp. nov. 



Plate III. Figs. 80 - 83. 



Special Marks. — Three minute arm-spines. Disk covered by small irregu- 

 lar scales, small separated radial shields, and very large mouth-shields. Disk 

 high. Basal under arm-plates about as long as broad. Arms high and 

 rounded. 



Description of an Individual (Station 157). — Diameter of disk 15 mm. 

 Length of arm about 37 mm. Width of arm, without spines, close to disk 

 3.5 mm. Mouth-papillae small, conical, widely spaced, diminishing in size 

 from within outward ; about five on each side and a group of three larger ones 

 at apex of jaw. Mouth-shields very long, pentagonal, with an obtuse angle 

 inward, lateral sides re-enteringly curved, and outer edge rounded ; length to 

 breadth 3.5 : 3. Side mouth-shields short, meeting broadly within, where 

 they are wider than without ; occupying only the inner end of the mouth- 

 shields. First under arm-plate triangular, with an angle inward, and outer 

 edge cur\-ed ; beyond, the plates are four-sided, thick, with outer and inner 

 edges nearly straight, and lateral sides re-enteringly curved ; beyond the disk 

 they become he.vagonal ; their surface has a minutely crystalline appearance. 

 Side arm-plat(-'S swollen, and not meeting below for some distance beycjud disk. 

 Uj)per arm-plates broader than long, thick and swollen, with outer side curved 

 and longer than the inner, which is nearly straight ; lateral sides re-entcringly 

 curved. Beyond, they are bounded by a long curve within and a peak with- 

 out. Disk smooth, arched, and very thick, covered above with small thin 

 plates, having a minutely tuberculous or crystalline appearance ; in the centre 

 are six circular primary jdates, separated by others irregularly shajicd and 

 angular, which also Jill the interbrachial spaces. Radial shields small, short, 

 and thick, rounded triangular, with an angle outward, separated their entire 



