Report on the Antijmtharians. 79 



3. Bathypathes hi/Ida, n. sp. 



Six interesting specimens of what seems to be a quite new 

 form were trawled on the 18th 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 up- 

 wards 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, 1 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 

 01 to 0"05 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 type. The most remarkable 

 feature is the length of the lateral tentacles — up to 3 mm. 

 Brook described four species of Bathypathes, and L. S. 

 Schultze has described a fifth from the " Valdivia " expedi- 

 tion. Our ncAV form is quite distinct from any of these. 



Brook regarded Bathypathes and its allies as dimorphic. 

 He thought that the zooids occurred 4n trios — two gonozooids 

 with a gastrozooid between them. From the little we have 

 seen, we incline to the view expressed by Dr G. C. Bourne 

 that there is but one kind of zooid, which appears to be 

 divided into three parts — two reproductive and one gastral, 

 each with two tentacles. 



