90 
AUSTRALASIAN ANTARCTIC EXPEDITION. 
The contained worm measures only 40 mm., exclusive of the tentacles, which add 
another 10-12 mm. to the length. It is nearly cylindrical, tapering only slightly 
posteriorly. 
The body contains about 70 segments ; the intersegmental grooves, however, are 
very indistinct posteriorly, so that there may be more. 
The tentacular platform (fig. 95) is low, and the post-tentacular region bears an 
irregularly double row of eye spots laterally, but this becomes a single row across the 
dorsum ; the right and left rows are continuous, whereas Elders found a short dorsal 
gap separating the two groups. 
The first segment is very short on the dorsal surface, but becomes swollen and 
enlarged laterally (figs. 95, 96), projecting forward here. This glandular thickening 
extends almost to the mid-line on the ventral surface, but the right and left lobes become 
narrower as they approach one another and terminate in rounded lobes, separated by a 
very narrow, short, non-glandular area. 
It is here that I find a difference from Elders 5 account. He represents a large 
oval, forwardly-directed “ flap 55 of much greater extent, and this, instead of tapering 
off towards the mid-ventral line, is here almost as long as it is higher up the sides, and 
the two lobes overlap. 
The second segment is likewise short on the dorsal surface, but is swollen so as to 
form a transverse ridge, which crosses the dorsum and extends down each side as far as 
the margin of the first gland shield. It is quite a definite structure ; but in Elders’ 
figure it seems to be confluent with the flap of the first segment. Possibly these structures 
are not at their full development in the specimens before me. 
The first notopod is borne on the third segment, and the uncini commence on the 
fourth. On each of the segments 5, 6, and 7 there is, above the notopod, near the hinder 
margin of the segment, a low but distinct nephridial papilla. 
There are 16-17 bundles of bristles, but there are only ten well-developed 
notopodial outgrowths. 
The uncinigerous neuropods are short throughout the worm, and lateral in 
position. Anteriorly, as in the 15th segment, there are 19 uncini, but further back the 
number is reduced to 6 or 7. The uncini agree precisely with the description given by 
Elders, and differ from those of L. ahranchiata Malmgren and from L. ivanddensis Gravier. 
The ventral gland shields number 11, and are quadrate in form, except the first 
four, which are narrower transverse glandular bands. 
Locality .— 
Commonwealth Bay, 15 fathoms (with T. ehlersi and Th. antarcticus). 
Distribution .—Kaiser Wilhelm II Land. 
