REPORT ON THE OPHIUROIDEA. 



Table of Species of Ophioglypha — continued. 



Six arms. No arm comb. Radial shields almost wlioUy covered by fine smootb \ 



scaling of disk. Upper arm plates with numerous supplementary scales on > OpMoglypha hexactis. 

 either side, . . • . ■ • • • • / 



Three rudimentary arm spines. Under arm plates squarish, ^^'^^ \ Q.jMoglypha nodosa. 

 rounded corners, . . . . . . • j 



Eight short, papilla-like, unequal arm spines. Under arm plates 4-sided, 1 Op^Mo/vMa seulpta. 

 with curved lateral sides. They are marked with short furrows, ■ j 



Eleven very short, papilla-like, unequal spines ; besides which some | 



plates bear long supplementary spines on then- sides. Under arm > OpMoglypha sladeni. 

 plates 4-sided, with lateral sides curved, . . . . ) 



Disk covered by small scales, and small sunken radial shields. Ai-m \ 



spines minute lilce flat papillw, and fitting into little notches in > OiMoglyplia striata. 

 inner edge of the succeeding side arm plate, . . . j 



Under arm plates with a raised keel. Seven tentacle scales and arm | 



spines which are similar, continuous, and rudimentary. Arm comb > OpMoglypha stuwitzii. 

 papillce minute and blunt, . . . . . ) 





13 

 o ■ 



'^ 2 



en S 



P 



g to 



Under arm plates with a raised keeL Five spaced arm spines. PapiUas ) OrMoqlyph 

 of arm comb sharp and slender, . . . . .)■'■' 



a elevata. 



§-^ 



M-3 



M 



to " o 



"^ .« g 



O K o 



^ « a 



~t^ "^ -.J ^ 



"rt .3 2 >, 

 § .2 O* 





ri4 



5 



Interbraohial space 

 below, covered 

 almost entirely by 

 the large mouth 

 shields and gen- 

 ital scales. 



Three minute, evenly spaced arm spines. Disk '\ 



scales above rounded and of various sizes, with j> Ophwglypha bvllata. 

 large marginal plates, . . . • j 



Three small tapering arm spines. Disk covered \ 



above by a ro.sette of large angular V^J^f'^Y { Qphioglypha convem. 

 plates, radial shields, and a few large inter- ( -^ 

 brachial plates, . . . . / 



'Six minute arm spines. First under arm plate ^ 

 broader than long ; those beyond longer than 

 broad. Radial shields separated within by a 

 cluster of large scales, . 



Mouth shield and 

 genital seal es large 

 and conspicuous, 

 but not covering^ 

 the central mar 

 gin of the inter- 

 brachial space. 



OpMoglypha sculptilis. 



Four or five minute arm spines. Under arm plates \ 



longer than broad. Radial sliields separated at V OpMoglypha variahilis 

 inner ends by a single scale, . . . ) 



L 



Three or four minute, widely spaced arm spines. 

 Mouth shield trefoil, with a pointed lobe 

 inward, . . . • • 



Three minute arm spines, high up. Radial shields 

 rounded, separated by one scale within. One 

 large marginal plate with small scales about it, . 



OpMoglypha ornaia. 



OpMoglypha lacazei. 



Three minute arm spines. Disk covered by small irregular scales, small ) OpMoalypha lienosa. 

 separated radial shields, and very large mouth shields, . . J 



Two minute arm spines. Mouth shield trefoil. Under arm plates axe- ) OpMoglypha radiatu. 

 shape. Radial shields small and rounded, . . . . J 



plates rough and lumpy, with ) g j^i j j,^ ,, 

 plates pentagonal, . . j -^ 



ndata. 



Four mmute, blunt, arm spines. Disk 

 rosette of large primaries. Under arm 



Eleven short, pointed, elose-set arm spines. Mouth shields trefoil. 1 



Under arm plates squarish. About eight tentacle scales to each pore \ Ophioglypha lapidaria. 

 within the disk, . . . . • • • ) 



