ANTIPATHAHIANS OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 191 



The specimen agrees in general with BROOK'S description, but it is bigger and 

 stronger, the branches are far more numerous (20 on one side, 21 on the other), and 

 the axial spines are more regular. The Challenger specimen was only 18 '5 cm. 

 in height, and had 12 branches on one side, 13 on the other. It was said to be 

 more slender than B. patula and with smaller zooids, but the reverse is the case with 

 BRUCE : S specimen of B. alternata, which is probably older and more vigorous than 

 the colony obtained by the Challenger. 



Burdwood Bank, 1st December 1903, 54 25' S., 57 32' W., 56 fathoms. 



3. Bathypathes bijida, n. sp. 



Six interesting specimens of what seems to be a quite new form were trawled on 

 the 1 8th March 1904, in lat. 71 22' S., long. 16 34' W. Each is firmly attached 

 to a small stone, and all the six specimens are practically the same in size and form. 

 A slender basal piece rises vertically from the stone to a height of 15 mm., and then 

 bifurcates into two long branches which extend in opposite directions, at first almost 

 at right angles, and gradually curving slightly upwards to a length of about 16 cm. 

 There is no hint of any continuation of the short main stem or of any breakage ; 

 there is a slight re-entrant angle at the origin of the two branches. 



The axis is almost hair-like, I mm. in diameter at the very base, 0"2 mm. in the 

 branches. It appears black at a distance, but is reddish brown under low power. 

 It bears four rows of low, conical, yellowish or brownish spines, which have broad bases 

 and blunt tips. The spines measure O'l to O'Oo mm. in height, and are separated 

 along any one line by intervals varying from 0'2 to 0'3 mm. It is most unfortunate 

 that all the six specimens are almost quite bare of zooids. Three or four are left, 

 isolated from one another, and agree with the Bathypathes-typQ. The most remark- 

 able feature is the length of the lateral tentacles up to 3 mm. BROOK described 

 four species of Bathijpathes, and L. S. SCHULTZE has described a fifth from the 

 Valdivia Expedition. Our new form is quite distinct from any of these. 



(ROY. PHYS. soc. OF EDIN. PROC., VOL. xvi.) 



