288 NEW ST A R FISHES A ND OPE I URA NS— VERRILL. vol. xvii. 



Freyella in other respects. The stout, clavate or mushroom-shaped 

 spines at the base of the arms are similar to those of Brisinga multi- 

 costata, but the end is concave and the papillte of the terminal crown 

 are fewer and larger. In the absence or rudimentary condition of the 

 transverse furrow-spines it differs from most of our other species, as 

 well as in the minuteness and great number of the dorsal spines of the 

 disk and rays. 



OPHIUROIDEA. 



Family Ophiurid^. 



OPHIOGLYPHA SAURUEA, new species. 



A five-rayed species with very convex, angular, unequal disk-scales 

 and radial shields, the latter with prominent outer ends nearly or quite 

 in contact. Arms high and somewhat carinate, each dorsal plate with 

 a central and distal prominence, thus appearing serrate in profile. Three 

 short arm spines. Mouth-shield broad, shield-shaped, pointed within. 

 Mouth-papilhe numerous, regular, pointed. Arm-comb absent or rudi- 

 mentary. 



Diameter of the disk, 17 to 18 mm.; length of arms (broken at tip), 

 somewhat more than 40 mm. ; breadth of arms at base, 3 mm. ; height, 

 3.5 mm. 



Disk flatfish, moderately thick, pentagonal, with prominent corners 

 and a small angular notch at the base of the arms. The disk-scales are 

 very irregular in size and form, imbricated and mostly angular, with a 

 prominent central or distal conical or rounded elevation on each. 



The primary plates are only slightly larger than many of the others; 

 the central plate is round and easily distinguished. In each inter- 

 brachial space there are four or five plates somewhat larger than those 

 on the central part of the disk — one in the center of the margin is 

 the most conspicuous; radial shields irregularly triangular, longer than 

 broad, with the inner ends acute and widely divergent, the outer ends 

 and sides obliquely rounded. The surface at the distal end rises into a 

 conical or rounded prominence. In some cases the distal ends are in 

 contact or slightly overlap one another. The divergent proximal ends 

 are separated by four or five angular plates, of which one or two are 

 large and prominent. The arm-comb appears to be entirely wanting. 



Mouth-shields rather large, thick, convex, broad, shield-shaped; 

 length, 3.5 mm.; breadth, 4 mm.; the outer margin is slightly rounded 

 or subtruncate; the outer angles rounded ; sides nearly straight, and 

 the proximal edges straight or slightly incurved, forming an obtuse 

 inner angle. The side mouth-shields are elongated, narrow, curved, 

 with the inner ends somewhat spatulate. The interbrachial areas 

 beneath are covered with convex, thick, angular plates similar to those 

 of the back, but more regular ; of these there are about twenty-four in 

 each area, besides small ones in the angles between them. Mouth- 

 papillie are numerous, regular, closely arranged, acute, conical, with 

 two at the angle of the jaw a little longer than the rest. 



