625 



of the branches, we find many longitudinal grooves. They are shallow 

 and their margin is prickly. On smaller branches these grooves be- 

 come cavities, quite similar to the burrows found in C. bdshüensis. 



A fine specimen, about 300 mm in height, was hauled up from a 

 deep bottom, off Mera, Böshü. 



This species resembles the two foregoing species, especially C. 

 bôshûensis, but differs in colour, grooved branches, etc. 



Corallium elatior (Ridley). 



All branches in one plane, but they are more or less reflexed back- 

 ward. Some branches anastomose with each other. Terminal branches 

 are very fine. Polyps large, 1 y 2 — 2 mm in diameter, subhemispherical, 

 arranged in about four rows and generally on the front side of the 

 branches only. Coenenchym thick and firm, scarlet or vermilion in 

 colour; but near the free end of growing branches it is light red or 

 colourless. Three kinds of spicules; six radiate, seven radiate and 

 double clubs. The seven radiate form is rare. Axis finely striated, 

 normally red in colour with white centre. In general, there is a 

 small pit in the axis underneath every polyp. 



This species was determined by Ridi e y as a variety of C. secundum 

 Dana; but examining photographs of Dana's type specimen, kindly 

 sent to me from the United States National Museum, I see that the 

 present species differs from the latter in the mode of ramification, 

 absence of burrows in the axis, etc. 



This species grows to an enormous size. Specimens of about one 

 metre in height and about twenty kilogrammes in weight are some- 

 times obtained. 



Known under the name of „momoiro-sango". 



Corallium Konojoi n. sp. 



Sparingly branched, generally in one plane. Branches often 

 anastomose with each other. They are blunt and rounded at the free 

 end. Polyps are unevenly distributed on the front side of the branches, 

 crowded at the free end of the branches or on the prominences on them. 

 Polyps are large, 2 — 3 mm in diameter, and are a little elevated. 

 Coenenchym thick and firm, yellowish to reddish. The colour becomes 

 lighter towards the root. Three kinds of spicules ; six radiate , seven 

 radiate and double clubs. Six radiate form, 0,09 mm in length, is 

 most abundant. Very rarely eight radiate form is found. Axis weakly 

 striated, milky white in colour with pinkish centre. 



Grows to a size, about 300 mm in height. 



This species is known under the name of „shiro-sango". 



