36 



THE VOYAGE OF H.M.S CHALLENGER. 



Disk thin, with rather delicate 

 scales, arms slender, with small 

 spines. Papilla? of arm comb 

 sharp and cylindrical. 



Table of Species of Ophioglijpha — continued. 



Four arm spines ; one long and high up, three 

 short and low down. Radial shields touch- 

 ing without ; disk scales angular, . 



Three arm spines ; one long and high up, two 

 short and low down. Radial shields separ- 

 ated ; disk scales small and curved, 



Ophioglypha lepida. 



Ophioglypha ljungmani. 



Four very short, peg-like arm spines equally ) 0phioglyplla aqmlis _ 

 spaced, . . . • • ) 



Three slender, equally spaced arm spines, j 



Mouth shield trefoil, with a long lobe in- > Ophiaglypha imbecillis. 

 ward, . . . • ■ ) 



Disk covered with smooth, moder- 

 ately thick scales. Arm spines 

 small and short. Second under 

 arm plate about as long as broad, 

 those farther out much broader 

 than long. Papillae of arm comb 

 close-set, flat, and with rounded 

 ends. 



Ophioglijpha irrorata. 



' Three very short, small, sharp arm spines, low ' 

 down. Mouth shield wider than long, with I 

 a point within. Radial shields long and 

 separated, .... 



Three very short, small, sharp arm spines, low "J 



down. Mouth shield as broad as long ( Q h . . M orUculata _ 

 Radial shields short, rounded, and separated | 

 by the fine scaling of the disk, . . ) 



Three very short conical arm spines, standing \ 



on middle of edge of plate Disk scales f 0Mlha unduMa _ 

 coarse and rather thick. Radial shields I 1 

 broader than long, and joined, . • ) 



Three very short, blunt, peg-like arm spines, \ 



evenly spaced. Disk scales few and large. V Ophioglypha costata. 

 Radial shields long and separated, . . J 



Similar to the preceding, but the upper arm ) 



plates form a ridge, while they are flat in V Ophioglypha lymani 

 O. costata, . . . ■ ■ ) 



Six short, blunt, peg-like, evenly spaced arm ' 

 spines. Arms narrow. Radial shields short, 

 and separated by one or two large rounded 

 plates, ..... 



Three slender pointed arm spines, about two- " 

 thirds as long as a joint. Disk scales few 

 and mostly large. Radial shields large and 

 L joined, .... 



■ Ophioglypha albata. 



Ophioglypha jejuna. 



Disk scales of moderate size, thick, 

 and swollen. Very small, narrow, 

 side mouth shields. Arm spines 



' Three short, blunt, peg-like arm spines, evenly j 



spaced. Papilla? of arm comb short, close- > Ophioglypha brevispina. 

 set, and sharp, . . . • ) 



short. Tentacle scales numerous. -\ Four snort) blunt) p eg .like arm spines, three \ 



together low down, and one higher up. ( 

 Papillse of arm comb short, close-set, and C 

 squarish, . . . . • ) 



Under arm plates within disk 

 about as broad as long, and 

 separating the side arm plates. 



Disk smooth and flat, with scales, 

 radial shields, and mouth shields 

 all small Arm spines few and 

 small. Mouth papillae and ten- 

 tacle scales similar, numerous, 

 even, and close set 



Ophioglypha ambigua. 



i 



Three to five short, sharp arm spines, about ) MogIypha lovenL 

 half as long as a joint, . . ■ ) 



Five very minute, blunt arm spines, which 

 are often rubbed off or naturally wanting, . 



!• Ophioglypha j rat en 



