392 
Proceedings of the Boyal Society 
Polls papillosa occurs very plentifully during some years amongst 
the rocks, but is absent from its accustomed haunts during others, 
without apparent cause. 
Supplying the place of the large P. Drummondi of the west coast, 
is the more beautiful and graceful Eolis coronata, which is occa- 
sionally met with near low-water mark. They sometimes devour 
portions of their own tails. 
Polls rufihranchialis appears amongst the rocks, and in debris of 
storms. The white granular streak down the tail is interrupted by 
pale papillse. They are agile and restless in confinement, and do 
not scruple to devour a dead companion of any species. 
Polls olivacea is met with sparingly under large stones in rock 
pools, between tide marks. It is hardy. 
One of the most plentiful species is P. viridis^ a group of six or 
seven occasionally occurring under a stone, and smaller numbers 
more frequently. Of all the Eolides observed, this has the most 
prehensile tail. It is easily kept for many months, though it loses 
its tints. 
Polis Andreapolis^ n. s. — Body half an inch long, ovate-oblong, 
of a pale-yellow or dull purplish hue, the latter chiefly marked at 
the sides ; with the dorsum faintly granular, and brilliantly blotched 
over with large, elongated, bright orange-pink spots, which were 
quite absent from the tail. Some of these spots were in front of 
the dorsal tentacles — one at the anterior and outer aspect of each, 
and a very distinct mass at their junction. There are a few smaller 
orange spots at the sides below the branchice. Dorsal tentacles 
about twice as long as the oral, not much tapered, approximating 
at the base ; tips pale amber, then a broad belt of reddish orange ; 
a few white grains at either end of the orange. Oral tentacles 
short and blunt, capable of a spoon-like flattening ; similarly tinted. 
Branchiae elliptical or club-shaped, purple, pale at the base, and 
densest in colour next the reddish-orange cap at the tip. In one 
pale specimen, a waved central vessel was apparent. There ap- 
peared to be more than a dozen transverse rows. The structure of 
the tongue approached most nearly to P. tricolor. Found after 
storms, and at low water amongst the rocks. 
Polis Farrani. — At low' water amongst the rocks, and on the 
beach after storms. Not uncommon. 
