116 JIUTA HAEA. 



junctions ; upper joints obliquely triangular, gradually changing to short 

 quadrate, much wider than long. Syzygies in the third and eighth, 

 others at intervals of five to nine joints. 



The first piar of pinnules are 12 mm. long and consist of eight to 

 twelve joints, lower ones of which are as long as wide and slender. 

 Middle pinnules are tolerably uniform, 22-25 mm. long and consist of 

 twenty-eight to thirty joints, — all wider than long, smooth, rounded, — 

 tapering to a filiform end from the start base. The outer pinnales 

 gradually diminish in length and stoutness, becoming filiform, all of 

 which have smooth quadrate joints, wider than long at the base and as 

 long as broad near the end. 



Disk naked ; sacculi abundant. 



Colour. — -Shining dark purple in living state ; dark reddish-brown 

 in spirit. 



Size. — Diameter of the disc = 24 mm. Length of arms = more than 

 150 mm. 



Habitat. — Very common at the neighbourhood of Misaki. 3 

 fathoms. 



EeDiarJcs. — This species resembles Antedon milherti in characters 

 of the tubercular radials and of the stout, round joints of lower pinnules, 

 in the form of arm-joints and in the syzygial interval. But the present 

 species differs from that species in the absence of spines on cirri and in 

 the discoidal form of the dorso-centralia. Although it might be a trifl- 

 ing matter, the number of cirri is also different. To Antedon carinata, 

 the present species bears a certain resembrance in the forms of the 

 centro-dorsalia, radials, arm-joints and lower pinnules. Bat it differs 

 decidedly from that species in the absence of carination on the arms and 

 on the first two brachials. From Antedon rosacea, it may be dis- 

 tinguished by the difference in syzygial intervals, by the number of 

 cirrus-joints, &c. 



As the preceding lines show, this species has certain alliance to 

 the three above named species, but there are certain important points 

 of differences, by which it can be readily distinguished from them. 



