NO. 1798. CRINOIDS COLLECTED BY THE ALBATROSS— CLARE. 533 



IIBr4(3 + 4); IIIBr2; IVBr 2, but rarely developed; thirty-seven 

 to sixty-three very slender arms 90 mm. in length, resembling, with 

 the division series, those of the related species; the projection of 

 the distal edges of the brachials is very marked. 



The color is brownish yellow. 



Type.— Cat No. 27486, U.S.N.M., from station 5356. 



Three additional specimens were secured at this station. 



COMASTER DISTINCTA (P. H. Carpenter). 



Station 5356. — One specimen with thirty arms 80 mm. long and 

 cirri VIII, 10. 



Station 5401. — Three specimens; one has thirty-three arms about 

 75 mm. long and cirri XXIII, 11 ; the two others are immature. 



Station 5414- — O116 specimen with thirty arms 80 mm. long and 

 cirri XV, 11,7 mm. to 8 mm. long. 



Station 5477. — Two specimens; one has thirty-one arms 100 mm. 

 long and cirri XI, 11-12; the other is small with twenty arms 85 mm." 

 long. 



This species is nearest to C. serrata of southern Japan; but in C. 

 serrata the third and fourth cirrus segments are much elongated, 

 three times as long as broad, and the other segments are propor- 

 tionately long; although O. serrata is a considerably smaller species, 

 its cirri are actually longer, about 10 mm. in length. 



Comaster parvus also bears a close resemblance to this species in 

 many ways, but is easily distinguished by its more numerous arms 

 and longer cirrus segments. The longest cirrus segment of C 

 distincta, the fourth, is about twice as long as broad. 



In my report upon the comatulids collected by Mr. Alan Owston 

 along the southern Japanese coast "■ the two examples listed under 

 '^Comaster parvicirra'' (p. 306) should have been referred to Comaster 

 serrata. 



COMASTER (?) HORRIDUS, new species. 



Centrodorsal thin discoidal, the bare polar area 1 mm. in diameter; 

 cirri in a single closely crowded irregularly alternating marginal row. 



Cirri XVII, 14-15, 10 mm. long; first joint short, second somewhat 

 longer tlian broad, third twice as long as its expanded ends, fourth 

 or fifth the longest, two and one-half or three times as long as its 

 expanded distal end; next very slightly shorter, usually a transition 

 segment; following segments decreasing in length, the distal three 

 or four being about as long as broad and the penultimate somewhat 

 broader than long; transition and following segments with minute 

 median subtermmal dorsal tubercles; terminal claw half again as 

 long as the penultimate segment, slender, moderately curved; 



aProc. U. S. Nat. Mua., vol. 34, pp. 305-319. 



