152 ISA L. HILES, B.SC. 



Section Scleraxonia. 

 Family SclerogorgiD;E. 

 Kerceides koreni Wright and Studer. 



There are numerous fragments of this species, but no complete 

 colony. 



The spicules are "92 mm.~ i 203 mm. in length, by '27 mm.-"13 mm. 

 The colony is light red in colour, with yellow polyps. 

 Hab. Outer slope of the reef. Depth 40-90 fathoms. 

 Previously recorded from the neighbourhood of Japan (7), 



Section Holaxonia.. 



Family MuRiCEiDiE. 



Acamptogorgia spinosa, ii. sp. (Plate XII., Figs. 3, 4, 5). 



There are several fragments of this form, but they are all rather 

 small. 



The branches are '5 mm. in diameter. The ccenenchyma is fairly 

 thick and very rough. The small branches arise at angles of from 

 60°-90°. The polyps are borne chiefly on the sides of the branches. 

 They stand out fairly perpendicularly at intervals of about 2 mm. 



Each branch bears, close to the apex, two opposite polyps which are 

 usually somewhat larger than the others. They are 105 mm. in 

 height, by IT mm. across the crown and "64 mm. across the base. 



The other polyps are *73 mm. x *62 mm., and *55 mm. across the 

 base. Thus the terminal polyps are decidedly larger than the lateral 

 ones. They are cylindrical in shape, somewhat wider across the crown. 



The operculum forms a low cone ; it consists of the basal spicules of 

 the tentacles, each tentacle having 2 or 3 long-pointed spicules which 

 divide into two at the basal end. They are "36 mm. x '09 mm. 

 (length by breadth), and rest on a sunken collaret of spindles. 



The polyp spicules are of the three-rayed type, with foliaceous ex- 

 pansions from two of the three rays, the third standing perpendicular 

 to the others like a long sharp spike. They are '37 mm. in height by 

 •36 mm. across the foliaceous basal portion. 



The ccenenchyma spicules are bent spindles with short branched ex- 

 pansions on the convex side, and also smaller forms of the polyp 

 spicules. The spindles are *21 mm. x Tl mm. (length by breadth). 



The axis is horny, brown, with the central core divided into chambers 



The colour of the colony in spirit is light brown. 



