224 FUNAFUTI ATOLL. 



In the walls of the canals there are numerous small spiny 

 spindles, of a dark carmine colour, offering a striking contrast to 

 the larger spicules which are yellowish-red by transmitted light. 

 Size -15 by -01, '35 by -03mm. 



SIPHONOGORGIA KOLLIKERI, Wright & Studer. 



Siphonogorgia kollikeri, Wright & Studer, Chall. Rep., Zool., 

 xxxi., p. 236, pi. xxiv., fig. 2 ; Studer, Chall. Rep., xxxii., 

 p. 7, pi. i., fig. 2 ; pi. v., fig. 3 ; pi. vi., figs. 4-5. 



One specimen with a slightly enlarged base, and measuring 

 100 mm. in height, but no doubt much higher when perfect ; all 

 the terminal twigs are broken. 



The colony closely resembles the figure given by Studer, the 

 large cone-shaped polyps being very characteristic. 



The colour in spirits is coral-red. 



Obtained at a depth of from 40 to 80 fathoms. 



SIPHONOGORGIA MACROSPINA, sp. nov. 

 (Plate xii., figs. 8a-d.) 



There are about twenty fragments of what appears to have 

 been one colony. Judging by these fragments the growth was 

 erect and in one plane, lateral branches being given off alternately 

 at intervals of from 5 to 10 mm., but rarely at right angles ; the 

 largest branch measures 25 mm. in height, and gives off two 

 alternate branchlets about 10mm. apart. The thicker branches 

 are a little compressed and 2 mm. in diameter, the slender ter- 

 minal twigs are 1 mm. or less. The branches are rigid but 

 exceedingly brittle owing to the large spicules and the paucity of 

 the ccenenchyma. 



The polyps occur at intervals of 3 mm. apart, and are arranged 

 subspirally around the twigs either singly or in pairs, they are 

 placed obliquely to their support, and provided with a slightly 

 projecting calyx ; there is a distinct operculum composed of 

 grouped spicules arranged like a A, and a collar of transversely 

 disposed spicules below the tentacles. 



The longitudinally arranged cortical spicules consist of much 

 curved or bent spindles, they are greatly elongated with slender 

 acute points, and the surfaces closely studded with warty tubercles. 



The walls of the nutrient canals are thickly charged with long, 

 thin, spiny rods and spindles. 



The spicules are as follows : 



(1.) Large elongate curved spindles, densely covered with 

 warty tubercles and tapering to sharp points. Size 1 - 4 by 15mm., 

 2- by 21, 3- by 32, 4- by -35, 5-5 by -4, 6- by -45mm. 



