278 NEW STARFISHES AND OPHIURANS—VERRILL. vol.xvu. 



The jaws have a salient inner angle and an elevated actinal promi- 

 nence, on which there is. on each plate, a small, short spine near the 

 inner end (others may have existed, but, if so, were rubbed off in the 

 dredge); on each side of the jaw there is a marginal series of about 

 five slender spines. 



Color, in alcohol, pale buff above, pink beneath. 



Greater radius, 10 mm.; lesser radius, 7 mm. 



Stations 2052 and 2096, in 1,098 and 1,451 fathoms, 1883. 



Family Echinasterid^, Verrill. 

 CRIBRELLA PECTINATA, new species 



Rays five, elongated, rounded, thick at base, tapering evenly to the 

 small tips. Disk moderately swollen, the lesser to the greater radii as 

 1 : 4.4. 



The lesser radius of the type-specimen is 15 mm.; the greater radius, 

 66 mm. ; breadth of rays at base, 18 mm. ; diameter of madreporic plate, 

 3 mm. 



The whole dorsal surface and sides of the rays are evenly covered 

 with small well-spaced pseudopaxilhe, each of which bears a fascicle, 

 or more rarely a comb-shaped group of four to eight or more small 

 slender spinules, which stand nearly erect, and are nearly equal in 

 length. The pseudopaxilhe arise from elevations of the plates and are 

 so spaced as to leave intervals greater than their own diameters, thus 

 giving the surface a rough papillose appearance; the pseudopaxillae 

 are more closely arranged on the center of tlie disk than on the arms. 

 The madreporic plate is large and covered with rough spinules in comb- 

 like groups. 



Each of the interspaces on the arms bears a single large papula, equal 

 in diameter to or exceeding the pseudopaxillse ; similar papulae occur 

 between the ventral plates, where they form regular longitudinal rows. 

 On the ventral surface of the rays there are three regular longitudinal 

 series of plates corresi^onding in number to the adambulacral plates. 

 The plates in the two outermost rows are oblong at the summit, and 

 each bears an oblong group of slender paxilliforin spinules, arranged 

 in two rows, and similar to those of the back. The plates of the outer 

 row are somewhat smaller than those of the next, and the spinules are 

 about twelve to fifteen in number toward the base of the rays, while in 

 the next series there are from twenty to twenty-five spinules, which 

 form pretty regular comb like groups; these extend to the tips of the 

 arms. Each of the interspaces between these rows of plates (which 

 probably represent marginal plates) contains a single large papula. 

 Closely adjacent to the adambulacral plates there is a row of smaller 

 plates, each of which bears a round group of small paxilliform spinules, 

 ten to fifteen in number, similar in size and form to those of the mar- 

 ginal plates. This row of intermediate plates extends from the angle of 



