POLYCELETA—BENETAM. 
53 
An imperfect individual, consisting of the anterior end of about 65 segments, 
appears to belong to this species. It measures 20 mm. in length and 2-5 mm. in 
width. 
Most of the cirri are broken ; the colour is yellowish brown, with dark greenish- 
bine patches, more or less extensive, irregular in shape and size, arranged along the 
dorsum ; they may be due to post-mortem changes. 
Of the tentacular cirri only one, on the left side, and two on the right, remain. 
But the general agreement of the head, the parapod and the chseta;, with the account 
given by Elders, inclines me to place the worm in this well-known Sub-antarctic species. 
Locality .— 
Macquarie Island, rock pool. 
Distribution (In the Antarctic and Sub-antarctic regions).—Magellan region (Kin- 
berg), Fuegia, Chilian coast, Kerguelen, Kaiser Wilhelm II Land, Coulman 
Island (Elders), Biscoe Bay, Petermann (Gravier). 
Eulalia (Pterocirrus) hunteri*, sp. non. 
(Plate 7, figs. 48-52.) 
The single individual is complete ; it measures 165 mm. in length, by 2-25 mm. 
over the body, and 6-5 mm. over the dorsal cirri, which are directed outwards. Anter¬ 
iorly the diameter of the body is but 1 mm.; the greatest breadth is about 20 mm- 
from this end, and is retained for rather more than one-half the total length, whence 
the body tapers gradually. This breadth of body is equal to 4| segments. 
The colour of the body is flesh-pink, with a pair of very dark blue, nearly black, 
irregularly quadrate spots on each segment about midway between the mid-dorsal 
line and the lateral margin (fig. 48). These spots commence at the 9th segment. In 
the hinder quarter of the worm they extend medially till they meet, so that these 
segments are crossed by a series of dark bands. 
The dorsal and ventral cirri are yellowish ; the ventral surface is of the same 
colour as the ground tint of the dorsum. 
The body is convex dorsally, flat ventrally; the parapods are short, and the 
dorsal cirrophore is close to the body. The dorsal cirri are of considerable size, nearly 
as long as the body breadth, and are not relatively shorter on the anterior segments. 
The prostomium is colourless, its breadth is rather greater than the length 
(fig. 49), and a slight notch on the posterior border, and also at the level of the insertion 
of the tentacles, gives it a trefoil shape. 
* I take this opportunity of associating with this handsome annelid the name of Mr. J. G. Hunter, the able biologist 
of the Expedition. 
