NEW RECENT UNSTALKED CRINOIDS— CLARK. 79 



15. ANTEDON CLIO, new species. 



Centro-doi'sal hemispherical, bearing 40-50 cirri, a large polar area 

 free; eirri IT mm. long, slender, with 25-30 joints, of which the fourth 

 to tifteenth are much longer than wide, then decreasing in length, 

 becoming squarish distally; the distal joints do not bear dorsal spines. 



First radials visible at angles of calyx, laterally separated distally; sec- 

 ond radials very short, widely separated laterall}', very deeply incised 

 by the rhombic axillaries; axillaries rhombic, or possibly slighth' longer 

 than wide, the distal angle somewhat open. Ten arms, 55 mm. long; 

 first brachial very short and deeph^ incised, the inner edge much 

 shorter than the outer; second brachial irregularly quadrate, pro- 

 duced distally on the outer side of the Y'ay^ and proximally in the 

 median line; third l)rachial quadrate, the inner side more than twice 

 the length of the outer, the ej^izygal quadrate with the inner side 

 longer than the outer, the hypozygal triangular, with the short side 

 in the inner side of the ray, the apex on the outer; next live brachials 

 irregularly oblong, then quadrate for live or six, then triangular, about 

 as wide as high, becoming quadrate again distally; syzygies in the third, 

 eighth, and twelfth ])rachials, and distally at intervals of three joints; 

 the lower brachials are raised distally, giving the lower part of the 

 arms a distinctly serrate appearance; the edges of the out<n" brachials 

 are slightly roughened, but do not overlap. 



First pinnule 10 nnn. long, very slender, with a])out 30 joints, the 

 basal 6 or 7 of which are short and wide, then becoming more elon- 

 gate, ])ut never much more than twice as long as wide; second pinnule 

 much shorter (7 mm.) and stouter, with 15 joints, the first 3 short, the 

 remainder greatly elongated; the following pinnules are stouter, but 

 in general similar to the second; they gradually decrease in length to 

 about the seventh, then become more slender and increase in length 

 distally where the}' are 8 nnn. long with about 20 slender joints, all 

 but the basal two, which are short, greatly elongated. 



Color in life light yellow, banded with white, the cirri white, with 

 occasional narrow bands of yellow. 



7]/^^'.— Cat. No. 22618 F.S.N. M.; from AUmtro.^s station No. 4004; 

 32° 31' 20" north latitude, 128" 32' 40" east longitude (Eastern Sea); 

 107 fathoms; August 10, 1900. 



16. ANTEDON ERYTHRIZON, new species. 



Centro-dorsal long and conical, divided hy 5 interradial ridges into 

 areas containing 3 parallel rows of cirri, about 12 in each area, or Go 

 in all. The cirri are about 50 ram. long, with 35-40 elongated, nuich 

 compressed, smooth joints, the longest between 3 and 4 times as long- 

 as wide, decreasing in lengtli distally; terminal spines very small. 



