70 BULLETIN OF THE 



corners rounded. Length to breadth 2.5 : 2. Side mouth-shields long and 

 iiarTOw, meeting within ; broadest at their outer end, where they join the side 

 arm-plates. First under arm-plates irregular, transverse oval ; the second 

 similar, but larger ; those immediately beyond are transverse diamond-shape, 

 with much rounded angles. Side arm-plates broad and thin, not meeting below 

 till beyond the disk, widely separated above by the upper arm-plates, of which 

 the first one is small and triangular, the second quadrangular, with the outer 

 edge widest and curved, and inner edge straight. Upper surfoce of disk, 

 which is smooth and even, covered with thin, fine, ill-defined curved scales ; 

 the radial shields are longer than wide, with edge much rounded, separated 

 their entire length by small scales. Under surface covered by rows of 

 scales somewhat larger than the scales above. Genital scales wholly covered 

 by the scaling, except above, where they support an arm-comb of sharp, slender 

 papillae ; their free edge below carries a row of small conical papilla3. Three 

 t;ipering arm-spines, upper one longest, second and third about equal. Three 

 or four small rounded tentacle-scales on each side of the mouth-tentacles, 

 second and third pores having three on each side ; those just beyond with 

 . four short sharp scales on the inner side. Color in alcohol, gray. 

 Station 164 a, 400- 1200 fathoms, 1 specimen. 



Ophioglypha lepida sp. nov. 



Plate III. Figs. 71 - 73. 



Special Marks. — Four arm-spines ; one long and high up, three short and 

 low down. Radial shields touching without ; dLsk-scales angular. Disk thin, 

 with rather delicate scales. Arms slender. 



Description of an Individual (Station 46). — Diameter of disk 9 mm. Width 

 of arm close to disk 1.5 mm. Mouth-papillse three to four on each side, 

 short and square, with a larger pointed one at apex of jaw. Mouth-shield wide 

 pentagonal, with an obtuse angle inward, outer edge slightly curved, and outer 

 comers rounded ; length to breadth 1:1. Side mouth-shields long narrow, 

 wider without, tapering inward where they meet. First under arm-plate 

 broad triangular, those beyond pentagonal, with obtuse angle inward, lateral 

 sides re-enteringly curved and outer edge slightly curved ; beyond the disk 

 they gradually acquire the shape of a transverse oval, with a little peak without 

 and within. Side arm-plates even, giving a tubular figure to the arm, meeting 

 below, but sejiarated above by the upper arm-plates, which are as long as broad, 

 and in shape long liexagonal, with the three outer angles almost blended in a 

 curve. Disk smooth, covered with small, delicate, irregular, ill-defined, closely 

 soldered scales ; radial shields long pear-seed shape, overlapped along their 

 edges by the surrounding scales, diverging inward and separated their entire 

 length by a wedge of smaller and larger scales ; in centre of disk one large 

 round primary i)late, and anotljer in each bracliial sjiace, lying close to inner 

 ends of radial shields. Disk, below, covered with vei y fine irregularly shaped 



