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blue bed were found the burrows of large and small worms. 
Amongst the former I found the specimen plate i., fig. 1, of 
a loop shape, 12 inches long, and ith-inch in diameter. It 
occurred on the fragment of stone as drawn, so I could not 
tell whether or not it had ever been connected with other 
loops. In comparing it with the Nemerites Olivantii of 
Murchison it bears considerable resemblance to that fossil, 
but as it is evidently only a portion of a specimen it is 
difficult to identify thoroughly, so it is proposed to call it 
Nemerites Monensis. Besides this specimen there are 
some oval shaped bodies about an inch long and half an 
inch broad, Avith a thin tail-like appendage, one and a half 
inch distant from each other. Plate i., fig. 2 gives a repre- 
sentation of one of them. Similar forms from the schists of 
Laxey and Dalby have been supposed by Messrs. Grindley 
and Taylor to be casts of the footprints of animals, but to 
me they appear more like the casts and trails of a bivalve 
shell in soft mud. In size and shape they resemble the 
Linguella Davisii of Mc.Coy. 
In an old quarry beloAv Port Soderic Bailway Station the 
blue slates are again met with, dipping to the S.E., and the 
tracks and burrow^s of annelides similar to those found at 
Oakhill occur. 
Further to the south of the last-named locality, in a new 
slate quarry on the cliff above the sea at Mary Veg, in 
Santon, the blue slates are now being wrought. They dip to 
the S.E., at an angle of 60°. In them I found the meander- 
ing worm -like body represented in plate ii., fig. I, both in 
mould and cast, the latter being on the left-hand side of the 
upper portion of the specimen. In the former (the mould) 
it is of an S shape at the lower part of the stone, where it 
appears to consist of about one hundred segments, with 
traces of feet and cirri not well shown, and terminating in 
what appears to be like an oval-shaped head. In the form 
