188 MISS RUTH M. HARRISON ON ALCYONARIA 



crown with about 8 transverse rows ; points with about 3-5 spicules arranged 

 en chevron ; tentacles with a single row o£ irregular transverse spicules. 



Colour : Base oi" stem rosy purple ; the rest of the colony a pure w4iite. 



Hah. Macclesfield Bank, Admiralty Islands. 



Chironephthya Hicksoni, n. sp. 



Stem erect, cylindrical, dividing into two main branches, from which are 

 given off short thick branches, tending to be directed upwards and very 

 slightly further subdivided. Polyps on all branches, more numerous on 

 terminal twigs, not retractile. Polyp spicules : crown with about 5 transverse 

 rows ; points with 2 or 3 spicules arranged en chevron and smaller ones 

 irregularly disposed between them ; tentacles with a double row of spicules 

 more or less dovetailed into each other. 



Colour : A uniform dull yellow, the tentacles only coloured a deep 

 purple. 



Hah. Macclesfield Bank, Admiralty Islands. 



Chironephthya purpurea, n. sp. 



Numerous branches; all directed practically vertically upwards, given off 

 from the sterile stem ; secondary branches few and small. Polyps borne on 

 the stem, branches, and twigs ; more numerous on twigs, directed vertically 

 upwards and not retractile. Polyp spicules : crown with 7 or 8 transverse 

 TOWS ; points with 3 or 4 spicules arranged en chevron, but when four are 

 present there is very constantly only one spicule on one side of the point 

 and three on the other ; tentacles with a single row of small thorny spicules 

 placed transversely. 



Colour : Stem and branches white, becoming cream in the terminal twigs; 

 polyps, including the tentacles, a deep purplish red. 



Hah. Tizard Reef, Admiralty Islands. 



Chironephthya annulata, n. sp. 



Colony rigid, short thick branches given off all around the stem, only one 

 or two of which are long enough to further subdivide. Polyp spicules: 

 crown with about 6 transverse rows, points with 3-5 spicules somewhat 

 irregularly arranged en chevron^ of which one is generally larger than the 

 others ; tentacles with scattered small warty spicules. 



Colour : Stem and branches deep crimson, terminal twigs with a few large 

 conspicuous cream-coloured spicules, and shaded from crimson to buff-yellow, 

 terminating in yellow calices ; polyps crimson. 



Hah. Admiralty Islands. 



Chironephthya gracilis, n. sp. 



Stem divides into two main branches directed vertically upwards, from 

 which several short, very slender branches arise. Polyps borne on all branches, 



