80 BULLETIN OF THE 



Description of an Individual (Royal Sound). — Diameter of disk 13.5 mm. 

 Width of the arm close to disk 2.5 mm. Mouth-papilloe short, blunt, tooth- 

 like, and close-set, five on each side, similar to and continuous with the ten- 

 tacle-scales of the mouth-tentacles, with a larger, longer, and pointed one at 

 angle of jaw. Mouth-shield pentagonal, with outer edge rounded, lateral sides 

 notched, and a blimt angle inward ; length to breadth 3 : 2. Side mouth- 

 shields short, just meeting within and slightly wider at their outer end. 

 First under arm-plate large, rudely diamond-shaped, with outer and inner 

 angles rounded ; the next two or three plates four-sided, wider without than 

 within, with outer side curv^ed and re-entering cur\'es on lateral sides ; further 

 out they become pentagonal, much broader than long, with an angle inward. 

 Side arm-plates short and thick, not meeting below till some distance from the 

 disk ; widely separated above by upper arm-plates, much broader than long, 

 arched, ^\^de^ without than within, outer edge curved, inner edge re-enteringly 

 curved. Disk thick and angular, covered with thick, closely soldered, irregu- 

 larly shaped plates, among which the primaries may be distinguished, but not 

 very clearly. Radial shields small, irregularly triangular, with angles rounded, 

 widely separated by one large and two or three small scales ; length to breadth 

 2 : 1.5. Genital plates short, beginning opposite fourth under arm-plate and 

 widening rapidly outward ; along the free edge is a row of fine, short, square, 

 close-set papilla?, extending as an unbroken line upward to form the arm-comb. 

 Four short, blunt, and tooth-like arm-spines, three in a cluster, close to edge of 

 tentacle-pores, and one a little separated above ; farther out the four make a 

 continuous group. Tentacle-pores large ; those of the mouth-tentacles have 

 five short, rounded scales on the interbrachial side and four on the other ; the 

 next pair, six on one side and five on the other ; thence they diminish till some 

 distance beyond the disk, where there is but one tentacle-scale, similar to and 

 continuous with the arm-spines. Color in alcohol, light gray. 



Royal Sound, Kerguelen Islands, 25-28 fathoms, 12 -f- specimens. OflF 

 Christmas Harbor, Kerguelen Islands, 120 fathoms, 12 + specimens. 



Ophioglypha Loveni sp. nov. 



Plate IV. Figs. 109-111. 



Sjiecial Marls. — Three to five short, sharp arm-spines, about half as long as 

 a joint. Disk smooth and flat, with scales, radial shields, and mouth-shields 

 all small. 



Description of an Individual (Station 157). — Diameter of disk 21 mm. 

 Width of arm close to disk 3.7 mm. Six or seven small rounded mouth- 

 papilla) on each side, the outer three being closely soldered together ; at apex 

 of jaw a clump of three larger papilla;. Mouth-shiekla triangular, with an 

 obtuse angle within, and the outer edge much rounded ; length to breadth 

 3.5 :4. Side mouth-shields following inner angle of the mouth-shield, rather 

 narrow without, where the mouth-tontacle pores encroach, wider within, where 



