564 DR J. STUART THOMSON ON 



are here of a different form, namely, short double clubs, etc. These spicules are again 

 more numerous in the rind than towards the centre. 



The spicules of the tentacles and of the crown of the polyp are long spindles, 

 straight or curved ; in some cases, these spindles are all red, in others yellow, or both 

 yellow and red may occur in the same specimen, the yellow being situated apically. 

 These spindles measure from 0'333 by 0'034 to 0'408 by 0'017 mm. At the tips 

 of the tentacles, the spindles are shorter than at the base and are, at least in some 

 cases, replaced by double spindles. The spicules of the stomodseum (proper) are small 

 rods or spindles, red or yellow. They measure from 0'102 by O'OSl to 0'0391 by 

 0-0306 mm. 



The spicules of the calyx have the form of small double, red, yellow, or orange clubs 

 and rods. They measure from O'OSl by 0'017 to 0'0765 by 0'034 mm. 



The upper ccenenchyma between the polyps shows two varieties of spicules : 

 firstly, long spindles, and secondly, short double clubs and rods. The long spindles 

 measure from 0'1054 by 0'0391 to 0'4165 by 0'034 mm. ; exceptionally, longer spindles 

 may occur, such as that noted previously. 



The short, double clubs do not show much variation in size, measuring from O'OSl 

 by 0-0204 to 0'0765 by 0'034 mm. 



The spicules of the external trunk are mostly double clubs, double spheres or wheels. 

 There are also a few long spindles or rods. The double spindles measure from 0'0595 

 by 0'034 to 0'187 by 0'0765 mm. The long spindles measure from 0'1955 by 0'034 

 to 0'629 by O'OSl mm. The spicules of the internal trunk are of various kinds, namely, 

 double clubs, long clubs, short spindles, and long, slender, needle-like spindles and 

 spicules of irregular form. The double clubs measure from O'OSl 6 by '051 to 0'119 

 by 0'0765 mm. 



The irregular spicules have approximately the same dimensions. The long needle- 

 like spindles measure from 0'187 by 0'034 to 0'816 by O'OSl mm. 



Localities, etc. : P.F. 13,459, 13,459B, and 13,460. Sandy Point, N.E. by N. 6| 

 miles. By dredge. Depth, 51 fathoms. Nature of bottom, broken shells and stones. 

 Date, August 14, 1901. 



P.F. 13,174. Cape Morgan, N. W. 10^ miles. By dredge. Depth, 77 fathoms. 

 Bottom, rocks and broken shells. Date, July 26, 1901. 



P.F. 11,351. Tugela river mouth, N.W. by N. N. 25 miles. By large dredge. 

 Depth, 65-80 fathoms. Bottom, hard ground. Date, January 11, 1901. 



P.F. 11,587. Amatikulu river mouth, N.W. f N. 20 miles. By large dredge. 

 Depth, 62 fathoms. Bottom, rocks and sponges (hard ground). Date, January 30, 



1901. 



I place this species as Metalcyonium patagonicum, May, and as being identical 

 with the form described by HICKSON from Cape waters as Alcyonium antarcticum, 

 W. and S. 



KUKENTHAL regards the two last mentioned as probably identical. It appears to 



