1894. PROCEEDINGS OF THE NATIONAL MUSEUM. 285 



plate which bears them is distinct, and may be recognized to belong to 

 a separate series of small lateral plates which lie in contact with the 

 outer edge of the adambulacral plates and between which there are, 

 alternately, one or two small plates without spines; close to the base 

 of the rays these lateral sj)ines are entirely obsolete. On the distal 

 half of the ray the plate bearing the lateral spines is usually consoli- 

 dated with the distal end of the adambulacral plate. Owing to this 

 arrangement the adambulacral plates appear to bear, alternately, one 

 or two long actinal spines on prominent basal tubercles. The longer 

 spines on the distal part of the rays are often as long as three or four 

 adjacent arm-segments; on the basal part they are usually equal to 

 about two arm-segments. All the large spines are covered with sac- 

 culated integument which is completely covered with minute pedicella- 

 rife. The furrow-spines bear clusters of somewhat larger pedicellariae 

 near their tips. 



A rather large, dry specimen has the radius of the disk, 12 mm.; 

 length of the longest ray, which is broken at the end, 200 mm. ; breadth 

 of ray at base, 5 mm.; at the widest portion, 7 mm.; height, 7 mm.; length 

 of dorsal spines, about 1 mm. Another dry specimen has the radius of 

 the disk, 9 mm. ; length of the longest ray, which is broken at some dis- 

 tance from the end, 175 mm.; greatest breadth of ray, 5 mm.; length of 

 the longest spines, 6 to 7 mm. 



Taken at several stations in 1,374 to 1.434 fathoms. 



FREYELLA ASPERA, new species. 



Eays, thirteen. Diameter of the disk, when dried, 20 mm. The dorsal 

 surface of the disk is covered with rather large, irregular, often rounded, 

 somewhat thickened plates, which are imbricated on the central iwrtion 

 of the disk, but separated more or less by naked integument toward 

 the margin, and imbricated immediately around the margin. Each 

 plate bears a group ot ratner stout, conical, acute, divergent spines 

 about 15 to 20 mm. long; they often form somewhat stellate groups, but 

 in other cases stand in one or two transverse rows. Each i)late usually 

 bears from three to eight spines and also some rather large crossed 

 pedicellarise, with slender, strongly curved jaws. The dorsal pore is 

 subcentral and surrounded by a group of spines a little larger than 

 those over the rest of the disk. Madreporic plate, small, prominent, 

 with a few rather wide, deep, convoluted grooves. 



The jaws are short and wide, about as broad as long, with prominent 

 inner angles and somewhat incurved lateral margins. Eacli jaw nor- 

 mally bears six spines at the adoral end; usually there are four of 

 these, arising from the inner edge and directed inward, which are small, 

 rather slender, and subequal, their length being equal to about one-half 

 the width of thejaw; eachinner angle bears a larger, rather short, robust 

 spine, which projects obliquely about halfway across the furrow; each 

 outer angle bears a rather long robust spine on the actinal surface; 



