enly distributed over its surface; basal portion of anima] widening rapidly in 

 .1 broad curve, reaching the maximum width at the axillary; radials short, more 

 than twic<- as broad as long in the median line, their dorsal profile, which is 



nvex, making an angle of about 90 with each other, or of f.5 with the 



dorsoventral a est of ras man ia; |.6 1 Metres) carpenteri 



.1 Centrodorsal aboul .is high as broad at the base, bearing cirri only al t the 



dorsal pole, the basal half or mor.- being smooth and without cirrus sockets; 

 basal portion of the animal constricted, the sides of the IBr series and arm 

 bases, which make approximately a straight line, diverging slowly at the verj 

 smal! angle with the dorsoventral axis so that the maximum width is at the 

 height of the hial; radials longer, twice as broad as long in the 

 median line, the dorsal profiles, which are concave, making an angle of 6o° 

 with each other. or of 30 with the dorsoventral axis (west of Japan; 5220 

 Mei abyssicola 



1. Bathymetra carpenteri \. 11. Clark. 



1'. II. CARPENTER. "Challenger" Reports. Comatulae, 1888, p. [91 (part), pi. 33, fig. 2 (not 

 fig. 1 ' {Antedon aby 



\. II. CLARK. Proc. U.S. National Museum, vol. 34, 190S, p. 235 [Bathymetra carpenteri). 



2. Bathymetra abyssicola (P. II. Carpenter). 



1'. II. CARPENTER. "Challenger" Reports. Comatulae. 1888, p. im part), pi. n, fig. 1 (but 

 not fig. 21 {Antedon abyssid 



Thaumatometra A. II. Clark. 



Key to the Species of the Genus Thaumatometra. 



a' Larere, the arms being trom [ 10 mm. to 1 xo mm. long: 1', 20 mm. Ion? 

 with 35 segments of which the proximal 12 are short and wide, mostly 

 wider than Ion-, and thi l! 2;, are elongated and slender; 1', slightly 



shorter with 20 segments <>f which the 2 basal are wider than Ion- and 

 the distal to are much elongated, the basal ro carinate; following pinnules 

 similar to 1' . cirri XL — L, 20. 35 mm. Ion- western part of the Sea 

 fapan and the Gulf of I ar tarj from Korea northward t o 

 k hal in I si and to 17 38 \o" N.] ; 144 -1110 [; [440 Metres). . tenuis 

 -maller, the arms never over 45 mm., and very rarelj over 30 mm. in Iength; 

 I', with not over 20, anti rarely over 15 segments; cirri with a maximum 

 of 18; and rarely over 15 segim 



ually 15, cirrus segments, of which tl from tl 



1 .i- times as Ion- as th imal diami l 



ents much elongated, subequal, the antepenultima out 



