40 



OPHIOGLYPHA. 



OPHIOGLYPHA* Lyman. 



Type of the Genus, 0. lacertosa. 

 Ophiura Forbes (uon Lamk.). 



Disk covered with unequal, crowded, naked, more or less distorted 

 scales, some of which are swollen. Eadial shields naked and swollen. 

 Teeth. No tooth-papillie. Mouth-papilla3 long within, but small and 

 short near the outer end of the mouth-slit, and partly hidden by the 

 scales of the mouth-tentacles. Arm-spines few (commonly three), ar- 

 ranged along the outer edge of the side arm-plates. Tentacle-scales 

 numerous ; the innermost pair of tentacle-pores shaped like slits, sur- 

 rounded by numerous tentacle-scales, and opening diagonally into the 

 mouth-slits. Side arm-plates meeting nearly, or quite, below, but not 

 above. In the back of the disk, where the arm joins it, a notch edged 

 with papillae, 

 shields. 



GROUPING OF SPECIES HEREIN DESCRIBED. 



Two genital slits, starting from the sides of the niouth- 



0. lacertosa. 

 O. SorslL 

 O. rohusta. 

 0. Lutkenii. 



0. albida. 



Arms smooth, tapering, pretty long ; three arm-spines ; mouth- 

 shields shield-shaped, large. 



Arms slender, smooth ; arm-spines short. 



Arms very short, thick, knotted ; arm-spines rudimentary. C ^ , 



resembling tentacle-scales ; mouth-shields very lonj; and -, ^ r,, •, • • 

 narrow, \ 



Arms slender ; disk-scales mostly small, with a few larsje ones ( ^ ^ . 

 regularly placed in the centre, ( 



Ophioglypha lacertosa Ltman. 



Stella lacertosa LixcK. De Stel. Mar., pi. II. fig. 4, p. 47. 1733. 

 Ophiura texturata? Lamk. Hist. Anim. s. Vert., II. p. 542. 1816. 

 Ophiura texturata Forbes. Brit. Starfislies, p. 22. 1841. 

 Ophiura texturata Lutkex. Addit. ad Hist. Opb., p. 36. 



LIST OF SPECIMENS. 



* "0(^15, snake ; yXvc^iy, notch. 



