NO. 1561. NEW UNSTALKED CRINOIDS— CLARK. 133 



Type.—Q?it. No. 22620, U.S.N.M.; from Alhatrosi^ station No. 4884; 

 32° 32' 00" north latitude, 129° 30' 45" east longitude (Eastern Sea); 

 53 fathoms; August 8, 1906. 



3. ANTEDON PROPINQUA, new species. 



Centro-dorsal discoidal. bearing 25 marginal cirri in two alternate 

 rows; cirri 25 mm. long, moderately slender, with 45 joints, the basal 

 half of which are rather longer than wide, the distal half bearing- 

 strong dorsal spines. 



First radials visible as a low interradial triangle with no apparent 

 median suture; second radials low and wide, their lateral edges pro- 

 duced into tlangelike marginal processes which meet those of the 

 adjacent second radials, so that the second radials are all in apposition 

 for their entire length; axillaries pentagonal, with the lateral edges 

 produced, but entirely free; the two distichals resemble the two distal 

 radials, but their sides are rounded without lateral processes, and 

 they are proportionately higher. Twenty arms, 70 nmi. long, with 

 about 120 joints, of which the basal 3 are roughly oblong, then 

 quadrate to the tenth or eleventh, then triangular, about as long as 

 wide; the long sides of all are convex, bearing the pinnule at the 

 distal apex. 



The first pinnule is very small, delicate, and flexible, with 2i» joints, 

 the lirst enoi-mously eidarged, the second less than half as large, the 

 remainder very small and squarish; the second pinnule is much longer 

 and stouter, stiff and rod-like, with about 15 joints, the first short and 

 broad, the second sijuarish, the remainder much elongated; the third 

 pinnule is even longer and stifi'er, after which the pinnules gradually 

 decrease to about the eighth, then increase very slightly distally. 



Color in life reddish and purplish brown marbled with light yellow, 

 the dark and the light in about equal proportions; rays and lower 

 brachials purple, with a medium line of white; two or three areas of 

 white with purple spots distally on the arms. 



Type.— Q2it. No. 22621, U.S.N.M.; from Albatross station No. 4895; 

 32° 33' 10" north latitude, 128° 32' 10" east longitude (Eastern Sea); 95 

 fathoms; August 9, 1906. 



4. ANTEDON SEPARATA, new species. 



Centro-dorsal rounded-discoidal, bearing about 15 cirri in two irreg- 

 ular rows; these are 15 nmi. long, with 35 joints, of which about one- 

 half are slightly longer than wide and the distal two-thirds bear dorsal 

 spines. 



First radials narrow and band-like; second radials short, oblong; 

 axillaries low and wide, pentagonal; the two last usually have the lat- 

 eral edges more or less produced and Hangelike and in apposition. 



